waec physics essay questions

WAEC Physics Questions/Answers for Essay & Objective 2023

The West African Examinations Council (WAEC) is a reputable examination board responsible for conducting the West African Senior School Certificate Examination (WASSCE) annually. This examination tests the knowledge and understanding of students in various subjects, including Physics. With millions of candidates participating in the WAEC exams every year, it is essential to be well-prepared to excel in this crucial examination.

In this comprehensive guide, we will provide you with sample WAEC Physics Answers 2023 questions for both essay and objective sections to help you prepare effectively for the examination. We will also offer valuable tips and strategies for tackling these questions and boosting your chances of success.

Section 1: Introduction to WAEC Physics Examination

The WAEC Physics examination tests candidates’ understanding of the fundamental principles and concepts of Physics. The exam is divided into two parts: Paper 1, which contains objective questions, and Paper 2, consisting of essay questions. Both sections are designed to assess a candidate’s ability to apply their knowledge and skills to solve Physics problems accurately and efficiently.

Section 1.1: Structure of the WAEC Physics Examination

The WAEC Physics examination consists of two papers:

• Paper 1 (Objective): This section consists of multiple-choice questions, which candidates must answer within a specified time limit. The questions cover various topics in Physics, including mechanics, thermodynamics, electricity and magnetism, waves and optics, and nuclear Physics.
• Paper 2 (Essay): This section features essay questions that require candidates to provide detailed explanations and solutions to various Physics problems. The questions in this section are designed to assess a candidate’s ability to apply their knowledge and skills to solve complex Physics problems accurately and efficiently.

Section 2: Sample WAEC Physics Answers 2023 Questions for Essay

In this section, we will provide you with sample WAEC Physics Answers 2023 essay questions to help you understand the format and structure of the examination. These questions are drawn from past WAEC Physics examinations and are designed to give you a clear idea of what to expect in the actual examination.

NOTE: The actual WAEC Physics exam will not contain these exact questions. The purpose of these sample questions is to provide you with a general idea of the types of questions you may encounter in the exam. Please do not rely solely on these questions for your preparation.

Essay Question 1:

A particle is projected horizontally at 15ms-1 from a height of 20m. Calculate the horizontal distance covered by the particle just before hitting the ground. [g = 10 ms-2]

Essay Question 2:

State Faraday’s second law of electrolysis and provide an example to illustrate the law.

Essay Question 3:

Explain three methods of polarizing an unpolarized light.

Essay Question 4:

Young’s modulus is a measure of the stiffness of a material. Define Young’s modulus and explain its significance in engineering applications.

Essay Question 5:

Describe the process of diffusion and state two applications of electrical conduction through gases.

Essay Question 6:

List and explain two properties of cathode rays and how the intensity and energy of cathode rays may be increased.

Essay Question 7:

Provide three observations that support de Broglie’s assumption that moving particles behave like waves.

Essay Question 8:

Differentiate between plane polarization and interference as applied to waves and list two uses of polaroids.

Essay Question 9:

State two factors that affect the mass of elements deposited during electrolysis and list two non-electrolytes.

Essay Question 10:

Explain the principles and applications of a ripple tank in the study of wave phenomena.

Section 3: Sample WAEC Physics Answers 2023 Questions for Objective

In this section, we will provide you with sample WAEC Physics Answers 2023 objective questions to help you understand the format and structure of the examination. These questions are drawn from past WAEC Physics examinations and are designed to give you a clear idea of what to expect in the actual examination.

Objective Question 1:

An electron moves with a speed of 2.00 x 107 ms-1 in an orbit in a uniform magnetic field of 1.20 x 10-3T. Calculate the radius of the orbit. [Mass of an electron = 9.11 x 10-31kg; charge on an electron = 1.61 x 10-19C]

Objective Question 2:

A tennis ball projected at an angle attains a range R = 78 m. If the velocity imparted to the ball by the racket is 30ms-1, calculate the angle of projection. [g=10ms-2]

Objective Question 3:

A metallic bar 50 cm long has a uniform cross-sectional area of 4.0 cm2. If a tensile force of 35kN produces an extension of 0.25 mm, calculate the value of Young’s modulus.

Objective Question 4:

A stone projected horizontally from the top of a tower with a speed of 4 ms-1 lands on the level ground at a horizontal distance of 25 m from the foot of the tower. Calculate the height of the tower. [g = 10 ms-2]

Objective Question 5:

A spiral spring with a metal extends by 10.5cm in the air. When the metal is fully in water, the spring extends by 6.8 cm. Calculate the relative density of the metal (Assume Hooke’s law is obeyed).

Objective Question 6:

A ray of light is incident on an air-glass boundary at an angle θ. If the angle between the partially reflected ray and the refracted ray is 90°, calculate θ given that the refractive index of glass is 1.50.

Objective Question 7:

A ball is projected horizontally from a height with a velocity of 40 ms-1. Calculate the drop in height after traveling a horizontal distance of 30m. [Neglect air resistance; g = 10 ms-1]

Section 4: Tips and Strategies for Tackling WAEC Physics Questions

In this section, we will provide you with valuable tips and strategies to help you tackle WAEC Physics questions effectively and boost your chances of success in the examination.

• Understand the fundamentals: Make sure you have a strong grasp of the fundamental principles and concepts of Physics. This will enable you to apply your knowledge and skills to solve Physics problems accurately and efficiently.
• Practice regularly: Regular practice is essential for success in any examination. Make it a habit to solve sample WAEC Physics questions frequently to familiarize yourself with the format and structure of the examination.
• Review past questions: Reviewing past WAEC Physics questions can help you identify common themes and topics that frequently appear in the examination. This will enable you to focus your preparation on these areas and improve your chances of success.
• Manage your time effectively: Time management is crucial in any examination. Make sure you allocate sufficient time to each question and avoid spending too much time on a single question.
• Read the questions carefully: Read each question carefully and ensure you understand what is required before attempting to answer it. This will help you avoid common mistakes and improve your chances of success.
• Be clear and concise in your answers: Write your answers clearly and concisely, using appropriate terminology and notation. Ensure that your calculations are accurate and your explanations are logical and easy to follow.
• Review your work: Before submitting your examination, take the time to review your work and ensure that you have answered all the questions to the best of your ability. This will help you identify and correct any errors and improve your chances of success.

Section 5: Conclusion

The WAEC Physics examination is a crucial test that requires thorough preparation and practice. By following the tips and strategies provided in this comprehensive guide, you can boost your chances of success in the examination. Remember to practice regularly, review past questions, and stay focused on the fundamental principles and concepts of Physics.

With dedication and hard work, you can excel in the WAEC Physics examination and achieve your desired results. Good luck!

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WAEC 2021 PHYSICS PAST QUESTION PAPER – ESSAY

Are you searching for WAEC 2021 Physics Past Question Paper? WASSCE 2021 Physics Past Question Paper? West African Senior Certificate Examination (WASSCE) 2021 past question paper on physics? The WAEC African Examinations Council past question paper on physics 2021?

Recommended post : WAEC SYLLABUS

If yes, then your search ends here. Below is the West Senior School Certificate Examination (WASSCE) 2021 Physics past question paper for Private Candidate( GCE) – First Series.

PAPER TYPE – Paper 2 (ESSAY)

TOTAL MARK: 60marks

Time Allowed: 1 hour, 30minutes

INSTRUCTION: Answer eight questions in all. Five questions from Part I and Three questions from Part II

PART I [15 Marks] WAEC 2021 PHYSICS PAST QUESTION PAPER

• (a) What is projectile motion? (b) Explain why a flying plane in not considered a projectile.
• Explain each of the following terms as applied to elastic materials: (a) proportionality limit; (b) yield point
• The work done in compressing a spring by 0.2cm is 200J. Calculate the stiffness of the spring.
• (a) Explain the principle of transmitting signals in Fibre Optics. (b) State one advantage of optical fibre over copper cables.
• (a) Name one material used in making a permanent magnet. (b) Give two reasons why iron is used in electromagnets.
• (a) What is a p-n junction? (b( Differentiate between the production of a p-type semiconductor and the production of n-type semiconductor
• Using dimensional analysis, show that work done is equal to energy expended.

PART II [45Marks] WAEC 2021 PHYSICS PAST QUESTION PAPER

Answer three questions from this part. All questions carry equal marks.

• 8. (a) (i) Define relative motion. (ii) Two cars A and B approach each other with velocities 120km/hr and 42 km/hr respectively. Determine the velocity of A relative to B. (b) A body of mass, m, is placed on a rough wooden board inclined at angle θ to the horizontal. Using a labeled diagram, show: (i) the forces acting on the body; (ii) that the coefficient of friction μ between the surfaces can be expressed as μ = tan θ, if the body is in equilibrium. (c) State two applications of a centrifuge. (d) A body of mass 17kg, attached to a string of length 3.4m is whirled round in vertical circle. If the tension in the string at the lowest point is 300N, calculate the speed of the body.
• 9. (a) (i) State advantages of the constant-volume gas thermometer over the liquid-in-glass thermometer. (ii) A resistance thermometer registers a resistance of 900Ω at steam point and resistance of 720Ω at 48 0 C. Determine the resistance registered on the thermometer at ice point. (b) State three functions of the transparent glass cover used in solar panels. (c) (i) Explain land breeze and sea breeze in terms of specific heat capacities of the land and the sea. (ii) State two applications of the cooling effect of evaporation.
• 10. (a) (i) A transerve wave equation of wave travelling in the x-direction with displacement y is expressed as y = A sin ( wt + Φ ), where Φ is the phase diffrence and the other symbols have their usual meaning. Show that the equation can be expressed as y = A sin 2π/λ  (vt + x). (ii) A wave motion is expressed by the equation y = 25 sin (4t – 3x), where x and y are in metres. Determine the: (I) wavelength of the wave (II) frequency of the wave. (b) State three applications of ultrasound. (c) (i) Differentiate between harmonics and overtones. (ii) A sonometer wire of length 100cm and mass 2g is under a tension 100N. Determine the frequency of the second overtone if the wire is set into vibrations.
• 11. (a) (i) State two differences between gravitation field and electric field. (ii) List three methods by which electric charges could be produced. (b) Two capacitors of capacitances 3 μF and 4 μF are connected in parallel and the combination connected in series with a 2 μF capacitor. The p.d. across the 3 μF capacitor is 12V, when the arrangement is connected to a source of emf, E. (i) Draw the circuit diagram of the arrangement. (i) Calculate the: (I) charge on the 2 μF capacitor; (II) p.d across the 2 μF capacitor; (III) value of E; (IV) energy stored in the circuit. (c) Describe how a lead-acid accumulator could be charged.
• 12. (a) (i) State the difference between the production of X-rays and photoelectric effect. (ii) Differentiate between line spectrum and continuous spectrum. (b) A particle of mass 2.0 x 10 -4 kg moves with a speed of 300m/s. Calculate the associated wavelength of the particle. [h = 6.6 x 10 -34 Js] (c) (i) State the law of radioactive decay. (ii) The activity of a sample is 326 Bq. If the original number of atoms in the sample is 1200, determine the: (I) decay constant; (II) half-life. (d) The mass defect in a nuclear reaction is 0.5213u. Calculate the binding energy. [1u = 931Mev; 1eV = 1.6 x 10- 19 J]

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2022 WAEC Physics Essay and Objective Questions and Answers Now Available

Wednesday, 15th June 2022 Physics 2 (Essay) 09:30am – 11:00am Physics 1 (Objective) 11:00am – 12:15pm

2022-WAEC-PHYSICS-ESSAY-AND-OBJECTIVE-ANSWERS

PHYSICS-OBJ- Examcode.net PHYSICS OBJ 01-10: BCABBDDCDA 11-20: CAACABBBBC 21-30: BDCCBDABDA 31-40: CABBCBACCD 41-50: DDBDDDCBDD

COMPLETED. ===================================

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PHYSICS-ESSAY- Examcode.net INSTRUCTION:  Answer Eight (8) Questions in All. Five Questions From Part I and Three Questions From Part II. ===================================

PART I Answer Any Five Questions From This Part. ===========================

(1) Range /PQ/ = u²sin2θ/g u = 250ms-¹ θ =42° = [250² x sin(2×42°)]/10 = (62,500 x sin84°)/10 = 6250 x 0.9945 = 6215.63m ===========================

(2) (i) They are pure semiconductors with impurities less than 1 and have teravalent crystals (ii) Presence of mobile charge carriers is intrinsic property of material (iii) No doping or addition of impurities required. ===========================

(4) F = 50N k = 100Nm-¹ F = ke 50 = 100e e = 50/100 = 0.5m Work done = (1/2)ke² = 1/2 x 100 x 0.5² = 25/2 = 12.5joules ===========================

(5a) A geostationary satellite is an earth orbiting satellite placed at an altitude of approximately 35,800km directly over the equator that revolves in the same direction which the earth rotates.

(5b) (i) Gas lasers (ii) Solid-state lasers ===========================

(6a) The S.I unit is watt per steradian (W/sr)

(6b) (i) As the temperature of the black body increases, the peak wavelength decreases. (ii) The total energy being radiated is the area under the graph. ===========================

(7) (i) Magnetic materials are materials having a magnetic domain and are attracted to an external magnetic field WHILE Non-magnetic materials are materials that are not attracted to an external magnetic field. (ii) The magnetic domains of magnetic materials are aligned either parallel or antiparallel arrangements thus they can respond to a magnetic field when they are under the influence of an external magnetic field WHILE The magnetic domains of non-magnetic materials are arranged in a random manner in such a way that the magnetic moments of these domains are cancelled out. Thus, they do not respond to a magnetic field. (iii) Magnetic materials are used to make permanent magnets are the parts of operating systems where magnetic properties are required WHILE Non-magnetic materials are used to make parts of some operating systems where no magnetic effect are expected and other things such as cases of compasses. ===========================

PART II Answer Three Questions From This Part. ===========================

(8ai) The law of inertia states that a body will continue in its present state of rest or if it is in motion, will continue to move with uniform speed in a straight line unless it is acted upon by a force.

(8aii) When the brakes of the moving vehicle are suddenly applied, or the passengers jerks forward as thet tend to continue in a straight line. The seat belt helps to provide a backward force and reduces injuries.

(8bi) The moment of a force about a fixed point is the product of the force and the perpendicular distance at the point to the line of action of the force.

(II) clock wise moment = Anticlock wise moment T x 1.5 = 54 x 0.5 T = 54×0.5/1.5 T = 18N

(III) F + T = w F = w – T F = 54 – 8 F = 36N

(8c) [TABULATE]

=STATIC FRICTION= (i) Independent of surface area in contact (ii) Depends on normal reaction ( of one solid surface on the other) (iii) Occurs between solids surfaces in contact

=VISCOSITY= (i) Depends in surface area in contact (ii) Independent of normal reaction (iii) occurs between fluid layers/solid and fluid in contact/in fluids.

(8d) By increasing the number of pulleys.

===========================

(9ai) Coulomb’s law states that the electric force between two point charges, q₁ and q₂ separated by a distance r is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges.

(9aii) Given r = 5.28×10-¹¹m k = 9.0×10⁹mF-¹ q₂ = q₁ = 1.6×10⁻¹⁹C = q Electrostatic force F = kq²/r² F = [9.0×10⁹(1.6×10⁻¹⁹)²]/(5.2×10⁻¹¹)² F = 0.852×10⁻¹⁶N F = 8.52×10⁻¹⁷N

(9bi) (i) Current I = Vin/R₁+R₂ I = Ir₁ =Ir₂ Vout = Vr₂ = Ir₁ x R₂ Vout = [Vin/(R₁+R₂)] x R₂ Vout = Vin[R₂/(R₁+R₂)]

(ii) Given; Vin/Vout = (R₁+R₂)/R₂ = 2.5 Where R₂ = 30Ω (R₁+30)/30 = 2.5 R₁+30 = 75 R₁ = 75 – 30 R₁ = 45Ω

(9bii) The volt is the work done of one joule in taking one coulomb of positive charge from one point to another.

(9c) A wooden core cannot provide path to the flux which is needed to link either the secondary or primary side

(9d) Used in medicine for visual functions. ===========================

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Past Questions & Answer , WAEC GCE

2023 WAEC GCE Physics Questions and Answers (Essay+Objectives)

PHYSICS THEORY SOLUTIONS

a) The boundary inside a semiconductor crystal between p- and n- regions is termed a p-n junction.

i. The depletion layer widens and “L” increases.

ii. The readings on A increases slightly.

a) Tensile strain is defined as the deformation or elongation of a body due to the application of a tensile force.

(i) Optical fibers are widely used in endoscopic procedures for medical imaging

(ii) They are utilized in laser surgery for delivering laser light precisely to target tissue

(iii) Optical fibers play a key role in various diagnostic imaging techniques such as Optical Coherence Tomography (OCT).

(i) Optical fibers are extensively used in military communication systems. 

(ii) They serve as the backbone for various fiber optic sensor systems used in defense applications. 

(iii) They are employed in the development of underwater surveillance systems.

A perfect blackbody is an idealized object that absorbs all incident electromagnetic radiation, regardless of wavelength or angle, and emits radiation.

(PICK ANY TWO)

(i) As temperature increases, the peak wavelength of emission decreases.

(ii) The intensity of radiation increases with temperature, with a higher temperature blackbody emitting more radiation at all wavelengths.

(iii) The graph shows a continuous spectrum, indicating that the blackbody emits radiation at all wavelengths.

(iv) At lower temperatures, the intensity is concentrated in longer wavelengths, while at higher temperatures, it extends to shorter wavelengths.

a) The Elastic collision is when two bodies collide and rebound. The momentum and kinetic energy are conserved.

iii. K.E after collision is less than K.E before collision, therefore the collision is inelastic.

d. Temperature

a) The specific laten heat of vaporization of a substance is the quantity of heat required to change a unit mass of the substance from liquid to vapour without change in temperature.

9 d (i) The linear expansivity of a solid is defined as increase in length per unit length for one degree rise in temperature.

(e) The barometer measures pressure relative to the prevailing atmospheric pressure.

The manometer measures pressure differences.

– Convex mirror uses reflection while Converse lens uses refraction.

– Convex mirror always produces virtual images but Convex lens produces both real and virtual images.

– images on a convex mirror are always diminished whereas a convex lens produces magnified images.

i. A ray parallel to the principal axis at the mirror passes through the focus after reflection.

ii. Reflected along a path making the same angle with the principal axis as the incident ray.

iii. A ray passing through the centre of curvature is reflected back along the same path.

iv. A ray passing through the principal focus must be parallel to the principal axis.

C. i & ii

PHYSICS OBJECTIVES SOLUTION

1-10: AAACDDBCBD

11-20: CCDBCABACA

21-30: BAAABABBCA

31-40: CDDDBBAAD

41-50: BBACCCDDDB

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WAEC Physics Questions and Answers for 2023/2024

Welcome to 2023 WAEC Physics Questions and Answers. You will find WAEC Physics Objective Answers, WAEC Physics Essay 2023, WAEC 2023 Physics and the tips you need to pass your WAEC Physics examination with ease.

Table of Contents

WAEC Physics Objectives And Essay Answers 2023

The 2023 WAEC Physics answers will be posted here today, 23rd May during the exam

WAEC Physics Questions and Answers 2023 Loading …

WAEC Physics OBJ Answers:

1-10: CBAACCAABD 11-20: DBDDCDAAAD 21-30: BDCDADDCCB 31-40:  CBBABACBBC 41-50: ADDACCCCCD

To use dimensional analysis to determine the values of x, y and z, let’s first look at the dimensions of each variable:

v = velocity

p = density

A = surface area

Using the dimensions of these variables, we can write:

Substituting these dimensions into the given equation, we get:

Simplifying the right-hand side, we get:

Equating the dimensions on both sides, we get:

For mass: 1 = x

For length: 1 = -3x + 2y + 2z

For time: -2 = -y

Solving for x, y, and z, we get:

Therefore, the values of x, y, and z are 1, 2, and 0 respectively.

(4) TABULATE: (PICK ANY THREE) Geostationary satellites: (i) Orbit the Earth directly above the equator in a geosynchronous orbit (ii) It has an inclination of 0 degrees (iii) Its coverage are limited to a specific longitude (iv) They observe the Earth from a fixed position, providing a continuous view of a specific region (v) They collect data for meteorological observations, weather forecasting, and telecommunications (vi) They are positioned at an altitude of approximately 35,786 kilometers (vii) They provide a continuous stream of data and observations for a specific region, allowing for real-time

Polar satellites: (i) Orbit the Earth in a polar orbit (ii) It has a high inclination angle (usually around 90 degrees) (iii) They cover the entire Earth’s surface over time. (iv) They observe the Earth from a changing perspective as they orbit, resulting in different views of the Earth’s surface with each pass. (v) They collect data for a wide range of applications, including weather monitoring, climate research, environmental monitoring, and scientific research. (vi) They operate at lower altitudes, typically between 700 and 1,500 kilometers (vii) They have a lower data refresh rate since they pass over a given area less frequently.

(4) (PICK ANY THREE) (i) Geostationary satellites orbit the Earth directly above the equator in a geosynchronous orbit. They remain fixed relative to a specific point on the Earth’s surface WHILE Polar satellites orbit the Earth in a polar orbit, passing over or near the North and South poles on each orbit.

(ii) Geostationary satellites have an inclination of 0 degrees, meaning their orbital plane aligns with the equatorial plane WHILE Polar satellites have a high inclination angle (usually around 90 degrees) to achieve polar orbits.

(iii) Geostationary satellites provide coverage over a large portion of the Earth’s surface (typically one-third to half) but are limited to a specific longitude range WHILE Polar satellites provide global coverage, as they pass over or near the poles on each orbit, covering the entire Earth’s surface over time.

(iv) Geostationary satellites observe the Earth from a fixed position, providing a continuous view of a specific region WHILE Polar satellites observe the Earth from a changing perspective as they orbit, resulting in different views of the Earth’s surface with each pass.

(v) Geostationary satellites primarily collect data for meteorological observations, weather forecasting, and telecommunications WHILE Polar satellites collect data for a wide range of applications, including weather monitoring, climate research, environmental monitoring, and scientific research.

(vi) Geostationary satellites are positioned at an altitude of approximately 35,786 kilometers (22,236 miles) above the Earth’s surface WHILE Polar satellites generally operate at lower altitudes, typically between 700 and 1,500 kilometers (435 to 932 miles.

(vii) Geostationary satellites provide a continuous stream of data and observations for a specific region, allowing for real-time monitoring WHILE Polar satellites have a lower data refresh rate since they pass over a given area less frequently. However, they provide a broader coverage over time.

(a) The kinetic theory states that all matter is made up of tiny particles (atoms or molecules) that are in constant motion. Diffusion is the process by which these particles move from an area of high concentration to an area of low concentration, due to their random motion. This occurs because the particles collide with each other and bounce off in different directions, spreading out over time. The rate of diffusion depends on factors such as temperature, pressure, and the size and shape of the particles. In general, diffusion is faster at higher temperatures and lower pressures, and for smaller particles that can move more easily through a medium.

(i) One phenomenon that demonstrates that light behaves as a wave is interference, where two or more waves can combine to form a new wave with a different amplitude and wavelength.

(ii) One phenomenon that demonstrates that light behaves as a particle is the photoelectric effect, where light can knock electrons off a metal surface, indicating that light has energy in discrete packets called photons.

6. (a) One difference between an intrinsic and an extrinsic semiconductor is that intrinsic semiconductors are pure materials (such as silicon or germanium) with no intentional impurities added, while extrinsic semiconductors have small amounts of impurities (dopants) intentionally added to alter their electrical properties.

(b) Two reasons why optical fibers are preferred to copper cables in telecommunications are:

– Optical fibers have much higher bandwidth and can transmit data at much higher speeds over longer distances without signal degradation.

– Optical fibers are immune to electromagnetic interference and do not generate electromagnetic fields, making them more secure and reliable for transmitting sensitive information.

(7a) (PICK ANY ONE) Fiber optics refers to a technology that utilizes thin, flexible strands of glass or plastic called optical fibers to transmit information in the form of light pulses.

Fiber optics refers to the technology that uses thin strands of glass or plastic fibers to transmit data and information in the form of light signals

Fiber optics is a method of transmitting light signals through optical fibers for the purpose of communication or data transmission.

(7b) (PICK ANY TWO) (i) Optical fibers have a much higher bandwidth compared to copper cables. (ii) Optical fibers can transmit signals over much longer distances without experiencing significant signal degradation unlike copper cables which are limited in their transmission. (iii) Optical fibers are immune to Electromagnetic Interference while copper cables are susceptible to interference (iv) Optical fibers offer improved security for data transmission whereas copper cables are vulnerable to eavesdropping or unauthorized access (v) Optical fibers are much thinner and lighter than copper cables, making them easier to install and handle.

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The questions provided below are WAEC Physics questions and answers for practice.

Scroll to the bottom for today’s Physics answers.

1. The instrument that measures the relative density of light is A. thermometer B. hydrometer C. spring balance D. beaker

2. What is the speed of a body vibrating at 50 cyclic per second A. 100 πrads−1−1 B. 200 πrads−1−1 C. 50 πrads−1−1 D. 400 πrads−1−1

3. The action of blotting paper on ink is due to A. diffusion B. osmosis C. capillarity D. surface tension

4. When two mirrors are placed at an angle of 900 to each other, how many images will be formed when an object is placed in front of the mirrors A. 5 B. 4 C. 3 D. 2

5. If silicon is doped with phosphorus, what type of semiconductor material will be formed? A. Zener material B. P-n junction C. n-type D. p-type

6. A car of mass 800kg attains a speed of 25m/s in 20 secs. The power developed in the engine is A. 1 . 25 x 104 W B. 2 . 50 x 104 W C. 1 . 25 x 106W D. 2 . 50 x 106 W

7. When the brakes in a car are applied, the frictional force on the tyres is A. is a disadvantage because it is in the direction of the motion of the car B. is a disadvantage because it is in the opposite direction of the motion of the car C. is an advantage because it is in the direction of the motion of the car D. is an advantage because it is in the opposite direction of the motion of the car

8. If the stress on a wire is 107NM – 2 and the wire is stretched from its original length of 10.00 cm to 10.05 cm. The young’s modulus of the wire is A. 5. 0 x 104 Nm-2 B. 5. 0 x 105 Nm-2 C. 2. 0 x 108 Nm-2 D. 2. 0 x 109 Nm-2

9. A solid weigh 10.00 N in air, 6 N when fully immersed in water and 7. 0 N when fully immersed in a liquid X. Calculate the relative density of the liquid, X. A. 5/3 B. 4/3 C. 3/4 D. 7/10

See: WAEC Chemistry Questions and Answers

10. When temperature of a liquid increases, its surface tension A. Decreases B. Increases C. Remain Constant D. Increases then decreases

11. A gas at a volume of V0 in a container at pressure P0 is compressed to one-fifth of its volume. What will be its pressure if the magnitude of its original temperature T is constant? A. P0/5 B. 4P0/5 C. P0 D. 5P0

12. A piece of substance of specific head capacity 450JKg-1K-1 falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted into heat. [g = 10ms-2] A. 2/9°C B. 4/9°C C. 9/4°C D. 9/2°C

13. I. A liquid boils when its saturated vapour pressure is equal to the external pressure II. Dissolved substances in pure water lead to increase in the boiling point. III. When the external pressure is increased, the boiling point increases. IV. Dissolved substances in pure water decrease the boiling point.

14. Which combination of the above are peculiarities of the boiling point of a liquid? A. I, II and III B. I, II, III and IV C. I, II and IV D. II, III and IV

15. The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20°C and 80°C respectively is A. 3.0 x 102Km-1 B. 3.0 x 103Km-1 C. 5.0 x 103Km-1 D. 3.0 x 104Km-1

16. Calculate the mass of ice that would me l t when 2kg of copper is quickly transferred from boiling water to a block of ice without heat loss; Specific heat capacity of copper = 400JKg-1K-1 Latent heat of fusion of ice = 3.3 x 105JKg-1 A. 8/33kg B. 33/80kg C. 80/33kg D. 33/8kg

17. A semiconductor diode is used in rectifying alternating current into direct current mainly because it A. allows current to flow in either direction B. is non-linear C. offers a high input resistance D. allows current to flow only in one direction

18. if ∆x is the uncertainty in the measurement of the position of a particle along the x-axis and ∆Px is the uncertainty in the measurement of the linear momentum along the x-axis, then the uncertainty principle relation is given as A. ∆x ∆Px ≥ h B. ∆x ∆Px = 0 C. ∆x ∆Px < h D. ∆x ∆Px = ∞

19. When a ship sails from salt water into fresh water, the fraction of its volume above the water surface will A. increase B. decrease C. remain the same D. increase then decrease

20. I. Its velocity is constant II. No work is done on the body III. It has constant acceleration directed away from the centre IV. The centripetal force is directed towards the centre

PAST ESSAY ANSWERS

1) Velocity of projection U_p =10m/s T= sqr root 2h/g Where H=1 G=10 T=sqr root 2*1/10 =sqr root 0.2 =0.447s V=UsinTita + gt V=10sin90 + 10*0.447 V=10 +4.45 V=14.5m/s =================

(2) (i) The position of the ion of the atm of the element in the electrochemical(activity)series. (ii) the nature of the electrode. (iii) the concentration of the electrolyte ==================================== 3) l=6.5m d=3.0mm=0.003m e=0.20mm=0.0002m F=60N stress=F/A A=pie*D^2/4 =3.142*0.003^2/4 =3.142*9*10^-6/4 =7.065*10^-6/4m^2 stress=60/7.065*10^-6 =8.49*N/m^2

(7) Doping of semiconductor increases the number of holes and electrons in the semiconductor, thereby making it impure which makes it to be useful or active.

WAEC Physics Essay and Objective 2023 (EXPO)

The above questions are not exactly 2023 WAEC Physics questions and answers but likely WAEC Physics repeated questions and answers.

These questions are for practice. The 2023 WAEC Physics expo will be posted here soon.

WAEC Physics Objectives Answers

Keep checking and reloading this page for more answers. More answers loading…

Tips to Pass WAEC 2023 Physics Questions

1. be positive in your thought.

It is obvious that until your mindset is positive, your life will not be positive. As you prepare for WAEC 2023, you must develop a positive mindset toward your fate.

Don’t say, “WAEC Physics is very hard I don’t know whether I will pass” and don’t believe anyone that says you cannot pass WAEC 2023 Physics on your own.

Have the mentality, “If others passed WAEC 2023 Physics in the past, then I will be like them. Refuse to be identified with failure or those that failed in the past.

Even if this year’s WAEC Exam is not your first time, it doesn’t mean that you cannot pass WAEC 2023 Physics this time around. Sit for Physics 2023/2023 with a refined mindset. Nothing will make you fail WAEC 2023. Until your mindset is positive, your life will not be positive.

2. Be Mindful of the Friends You Keep

If you are really serious about passing WAEC 2023 Physics, try and avoid bad companies. They will discourage and engage you in activities that will not enhance your success. Remember that their mindset may not correspond to yours.

3. Target High

If you have made up your mind to pass WAEC 2023, the next thing you should do is set targets. Write down the type of grades you want in WAEC 2023. If you want all As, zero Fs and Zero Es then you should start planning it now.

Make sure you create a timetable and master plan to achieve your set goals. Remember, it takes nothing to dream but it takes everything to focus on your dream.

4. Study Using the Recommended WAEC Physics Textbooks

One of your plans should be to get the WAEC 2023 Physics recommended textbooks. Normally, the West African Examination Council recommends books for the examination.

But apart from WAEC 2023 Literature in English where certain novels are compulsory, you are free to use any good textbook to prepare for WAEC 2023 Physics exam. Some topics are more difficult to understand.

If you have any topic you are finding difficult to understand, then get another textbook that will make things simple for you.

5. Study WAEC Physics Past Questions:

This is a very good plan. Since WAEC 2023 and WAEC 2023 are of the same standard, you could use the same past questions to study for both.

If you are confused about how to get WAEC or WAEC past questions. They are sold in good bookshops around.

It is possible that the school where you registered could offer to give you some current past questions that will help you in WAEC 2023 Physics.

6. Start Preparing for WAEC 2023 :

Stop wasting your time. Now that you have gotten textbooks and past questions, the next thing is to begin your reading. Early reading and practice are good for you; you will pass well on WAEC 2023 Physics

7. Solve and try to understand every example and exercise you see in textbooks

It is very unfortunate that Secondary school students are fond of skipping exercises and even examples while studying textbooks.

They loved notebooks so much that they could ask, “can I read my Physics notebook and pass WAEC 2023?”. Don’t be scared of attempting exercises; they are there to help you. Face it and overcome it!

8. Test yourself after a study by reading WAEC physics past question

This is a good practice. Once in a while, answer full one year Physics past questions on your own without checking the answers. Then mark to see your score. This will help you in many aspects.

9. Practise Regularly

Don’t get discouraged when certain topics are annoying, keep on practicing until you master everything. Never give up and never say never. Keep on keeping on….

10. Create Break Time

Create time for yourself where you play and ease off stresses. Do not overwork yourself; it can make you waste time unnecessarily. Once you work more than necessary, you are not gaining anything.

11. Revise your Previous studies

Doing constant practice is a good idea for WAEC 2023. Don’t just read a topic and forget about it. Revision helps; always go through what you have read over and over again.

12. You can Attend WAEC Preparatory Classes

Attending regular classes makes it easier for you to do well in WAEC 2023 Physics. Do not feel too big to learn from teachers no matter how small or dull they may be. You can also attend other classes that may help outside your normal classes.

WAEC  Physics  Answers to Questions 2023 loading….

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Last Updated on June 18, 2023 by Admin

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157 thoughts on “WAEC Physics Questions and Answers for 2023/2024”

Thanks again

Please I’d really like to have physics past questions and answers .

Please I need the real waec chemistry question and answer for 2023/2024 at midnight or early tomorrow morning please, add me to your group in case if you want to give any information thanks.

This question is different from the physics question that i did. I meant the one for objective

I need physics practical spacemen

I need objective

Please I need 2023/2024 physics question and answer

Obj and essay answers pls

I need physic theory and objective

Is this real

The 2023 answers pls

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Theory please

Please I need 2023/2024 waec questions and answers on physics and chemistry

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I need waec physics obj and theory answers for 2023

I need physics essay and objectives tomorrow by 8:15am in the morning

Please i really need the physics questions,I am tired of studying over and over again.

Are we getting the answer before or after the exam

Please i need physics essay answer before the exam

Please I need only physics eassay questions ?? Help me

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Physics 2013 WAEC Past Questions

The rising of a liquid in an open and ended glass tube of narrow bore is

• B. adhesion
• C. capillarity
• D. surface tension

Which of the following units is equivalent to the watt?

• B. kgm 2 s -3
• C. kgm 2 s -2
• D. kgm 2 s -1

Which of the following statements about pressure in a liquid is correct?

• A. the pressure in a liquid increases with depth
• B. the higher the density of a liquid, the lower the pressure it exerts
• C. pressure in liquid act only in a direction perpendicular to the sides of the containing vessel
• D. pressure is independent of the acceleration due to gravity

Solid friction, like viscosity is

• A. independent of the surface area in contact
• B. independent of the relative motion between layers
• C. dependent on normal reaction
• D. in opposition to motion
• A. acceleration
• B. displacement
• D. velocity
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• Civic Education
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May 8, 2024

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility:

fact-checked

peer-reviewed publication

Using AI to predict grade point average from college application essays

by PNAS Nexus

Jonah Berger and Olivier Toubia used natural language processing to understand what drives academic success. The authors analyzed over 20,000 college application essays from a large public university that attracts students from a range of racial, cultural, and economic backgrounds and found that the semantic volume of the writing, or how much ground an application essay covered predicted college performance, as measured by grade point average.

They published their findings in PNAS Nexus .

Essays that covered more semantic ground predicted higher grades. Similarly, essays with smaller conceptual jumps between successive parts of its discourse predicted higher grades.

These trends held even when researchers controlled for factors including SAT score, parents' education, gender, ethnicity, college major, essay topics, and essay length. Some of these factors, such as parents' education and the student's SAT scores, encode information about family background , suggesting that the linguistic features of semantic volume and speed are not determined solely by socioeconomic status.

According to the authors, the results demonstrate that the topography of thought, or the way people express and organize their ideas, can provide insight into their likely future success.

Journal information: PNAS Nexus

Provided by PNAS Nexus

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The resources below on Physics have been provided by WAEC to assist you understand the required standards expected in Physics final Examination. Students performance in examination under review was done by the Chief examiner, this you will see while exploring links like General Comment, Performance, Weaknesses, Strength and Expected Answers to Questions.

+ MAY/JUN. WASSCE 2008

+ may/jun. wassce 2009, + nov/dec wassce (private). 2009, + may/jun. wassce 2010, + nov/dec wassce (private). 2010, + may/jun. wassce 2011, + nov/dec wassce (private). 2011, + may/jun. wassce 2012, + nov/dec wassce (private). 2012, + may/jun. wassce 2013, + nov/dec wassce (private). 2013, + may/jun. wassce 2014, + nov/dec wassce (private). 2014, + may/jun. wassce 2015, + nov/dec wassce (private). 2015, + wassce for school candidates 2016, + wassce for private candidates 2016, + wassce for school candidates 2017, + wassce for private candidates 2017, + wassce (private candidates) 1st series 2018, + wassce for school candidates 2018, + wassce (private candidates) 2nd series 2018, + wassce (private candidates) 1st series 2019, + wassce (private candidates) 2nd series 2019, + wassce school candidates 2019, + wassce (private candidates) 1st series 2020, + wassce (private candidates) 2nd series 2020, + wassce for school candidates 2020, + wassce (private candidates) 1st series 2021, + wassce for school candidates 2021, + wassce (private candidates) 1st series 2022, + wassce (private candidates) 2nd series 2022, + wassce for school candidates 2023.

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