case study of physics class 11

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CBSE Case Study Questions Class 11 Physics PDF Download

Are you a Class 11 Physics student looking to enhance your understanding and prepare effectively for your exams? Look no further! In this comprehensive guide, we present a curated collection of CBSE Case Study Questions Class 11 Physics that will help you grasp the core concepts of Physics while reinforcing your problem-solving skills.

CBSE 11th Standard CBSE Physics question papers, important notes, study materials, Previous Year Questions, Syllabus, and exam patterns. Free 11th Standard CBSE Physics books and syllabus online. Important keywords, Case Study Questions, and Solutions.

Class 11 Physics Case Study Questions

CBSE Class 11 Physics question paper will have case study questions too. These case-based questions will be objective type in nature. So, Class 11 Physics students must prepare themselves for such questions. First of all, you should study NCERT Textbooks line by line, and then you should practice as many questions as possible.

Chapter-wise Solved Case Study Questions for Class 11 Physics

• Chapter 1: Physical World
• Chapter 2: Units and Measurements
• Chapter 3: Motion in a Straight Line
• Chapter 4: Motion in a Plane
• Chapter 5: Laws of Motion
• Chapter 6: Work, Energy, and Power
• Chapter 7: System of Particles and Rotational Motion
• Chapter 8: Gravitation
• Chapter 9: Mechanical Properties of Solids
• Chapter 10: Mechanical Properties of Fluids
• Chapter 11: Thermal Properties of Matter
• Chapter 12: Thermodynamics
• Chapter 13: Kinetic Theory
• Chapter 14: Oscillations
• Chapter 15: Waves

Class 11 students should go through important Case Study problems for Physics before the exams. This will help them to understand the type of Case Study questions that can be asked in Grade 11 Physics examinations. Our expert faculty for standard 11 Physics have designed these questions based on the trend of questions that have been asked in last year’s exams. The solutions have been designed in a manner to help the grade 11 students understand the concepts and also easy-to-learn solutions.

Class 11 Books for Boards

Why Case Study Questions Matter

Case study questions are an invaluable resource for Class 11 Physics students. Unlike traditional textbook exercises, these questions simulate real-life scenarios, challenging students to apply theoretical knowledge to practical situations. This approach fosters critical thinking and helps students build a deep understanding of the subject matter.

Let’s delve into the different topics covered in this collection of case study questions:

1. Motion and Gravitation

In this section, we explore questions related to motion, velocity, acceleration, and the force of gravity. These questions are designed to test your grasp of the fundamental principles governing motion and gravitation.

2. Work, Energy, and Power

This set of questions delves into the concepts of work, energy, and power. You will encounter scenarios that require you to calculate work done, potential and kinetic energy, and power in various contexts.

3. Mechanical Properties of Solids and Fluids

This section presents case study questions about the mechanical properties of solids and fluids. From stress and strain calculations to understanding the behavior of fluids in different situations, these questions cover a wide range of applications.

4. Thermodynamics

Thermodynamics can be a challenging topic, but fear not! This part of the guide offers case study questions that will clarify the laws of thermodynamics, heat transfer, and thermal expansion, among other concepts.

5. Oscillations and Waves

Get ready to explore questions related to oscillations, simple harmonic motion, and wave characteristics. These questions will deepen your understanding of wave propagation and the behavior of oscillatory systems.

6. Kinetic Theory and Laws of Motion

Kinetic theory and the laws of motion can be complex, but with our case study questions, you’ll find yourself mastering these topics effortlessly.

Discover a wide array of questions dealing with light, lenses, and mirrors. This section will improve your problem-solving skills in optics and enhance your ability to analyze optical phenomena.

8. Electrical Effects of Current

Electricity and circuits are fundamental to physics. The case study questions in this section will challenge you to apply Ohm’s law, Kirchhoff’s laws, and other principles in various electrical circuits.

9. Magnetic Effects of Current

Delve into the fascinating world of magnets and magnetic fields. This set of questions will strengthen your understanding of magnetic effects and their applications.

10. Electromagnetic Induction

The final section covers electromagnetic induction, Faraday’s law, and Lenz’s law. You’ll be presented with scenarios that test your ability to predict induced electromotive forces and analyze electromagnetic phenomena.

In conclusion, mastering Class 11 Physics requires a thorough understanding of fundamental concepts and their practical applications. The case study questions provided in this guide will undoubtedly assist you in achieving a deeper comprehension of the subject.

Remember, practice is key! Regularly attempt these case study questions to strengthen your problem-solving abilities and boost your confidence for the exams. Happy studying, and may you excel in your Physics journey!

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Class 11 Physics Case Study Questions

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Looking for complete and comprehensive case study questions for class 11 Physics? myCBSEguide is just a click away! With extensive study materials, sample papers, case study questions and mock tests, myCBSEguide is your one-stop solution for class 11 Physics exam preparation needs. So, what are you waiting for? Log on to myCBSEguide and get started today!

What is the purpose of physics?

Physics is the study of the fundamental principles governing the natural world. It is a vital part of the scientific enterprise, providing the foundation on which other sciences are built. Physics is essential for understanding how the world works, from the smallest particles to the largest structures in the Universe. In class 11 Physics, students are introduced to the basic concepts of physics and learn about the fundamental principles governing the natural world. Class 11 Physics concepts are essential for understanding the world around us and for further study in physics and other sciences.

What are case study questions in physics?

In physics, case study questions are intended to evaluate a student’s ability to apply theoretical principles to real-life situations. These questions usually ask the student to assess data from a specific experiment or setting in order to discover what physical principles are at play. Problem-solving and critical-thinking skills are developed through case study questions, which are an important aspect of physics education.

CBSE Case Study Questions in Class 11 Physics

CBSE Class 11 Physics question paper pattern includes case study questions. Class 11 Physics case study questions assess a student’s ability to apply physics principles to real-world environments. The questions are usually focused on a situation provided in the Class 11 Physics question paper, and they demand the student to answer the problem using their physics knowledge. Class 11 Physics case study questions are an important aspect of the CBSE physics curriculum. Class 11 Physics case study questions are a useful way to assess a student’s expertise in the subject.

Sample Class 11 Physics Case Study Questions

Expert educators at myCBSEguide have created a collection of Class 11 physics case study questions. The samples of Class 11 physics case study questions are given below. Class 11 physics case study questions are designed to test your understanding of the concepts and principles of physics. They are not meant to be easy, but they should be done if you have a good grasp of the subject. So, take a look at the questions and see how you fare. Good luck!

Class 11 Physics Case Study Question 1

Read the case study given below and answer any four subparts: Potential energy is the energy stored within an object, due to the object’s position, arrangement or state. Potential energy is one of the two main forms of energy, along with kinetic energy. Potential energy depends on the force acting on the two objects.

• kinetic energy
• potential energy
• mechanical energy
• none of these
• potential energy decreases
• potential energy increases
• kinetic energy decreases
• kinetic energy increases
• only when spring is stretched
• only when spring is compressed
• both a and b
• 5  ×  10 4  J
• 5  ×  10 5  J

Answer Key:

Class 11 Physics Case Study Question 2

• distance between body
• source of heat
• all of the above
• convection and radiation
• (b) convection
• (d) all of the above
• (a) convection
• (a) increase
• (c) radiation

  Class 11 Physics Case Study Question 3

• internal energy.
• 1 +(T 2 /T 1 )
• (T 1 /T 2 )+1
• (T 1  /T 2 )- 1
• 1 – (T 2  / T 1 )
• increase or decrease depending upon temperature ratio
• first increase and then decrease
• (d) 1- (T 2 / T 1 )
• (b) increase
• (c) constant

Class 11 Physics Case Study Question 4 

• It is far away from the surface of the earth
• Its surface temperature is 10°C
• The r.m.s. velocity of all the gas molecules is more than the escape velocity of the moon’s surface
• The escape velocity of the moon’s surface is more than the r.m.s velocity of all molecules
• T(H 2 ) = T(N 2 )
• T(H 2 ) < T(N 2 )
• T(H 2 ) > T(N 2 )

The given samples of Class 11 Physics case study questions will help Class 11 Physics students to get an idea on how to solve it. These Class 11 Physics case study questions are based on the topics covered in the Class 11 Physics syllabus and are designed to test the student’s conceptual understanding. The questions are of varying difficulty levels and cover a wide range of topics. By solving these Class 11 Physics case study questions, students will be able to develop their problem-solving skills and improve their understanding of the concepts.

Examining Class 11 Physics syllabus

Senior Secondary school education is a transitional step from general education to a discipline-based curriculum concentration. The current curriculum of Class 11 Physics takes into account the rigour and complexity of the disciplinary approach, as well as the learners’ comprehension level. Class 11 Physics syllabus has also been carefully crafted to be similar to international norms.

The following are some of the Class 11 Physics syllabus’s most notable features:

• Emphasis is placed on gaining a fundamental conceptual knowledge of the material.
• Use of SI units, symbols, naming of physical quantities, and formulations in accordance with international standards are emphasised.
• For enhanced learning, provide logical sequencing of subject matter units and suitable placement of concepts with their links.
• Eliminating overlapping concepts/content within the field and between disciplines to reduce the curricular load.
• Process skills, problem-solving ability, and the application of Physics principles are all encouraged.

CBSE Class 11 Physics (Code No. 042)

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CBSE 11th Standard CBSE Physics question papers, important notes , study materials , Previuous Year questions, Syllabus and exam patterns. Free 11th Standard CBSE Physics books and syllabus online. Practice Online test for free in QB365 Study Material. Important keywords, Case Study Questions and Solutions. Updates about latest education news and Scholorships in one place.

Latest 11th Standard CBSE Case study Questions Update

Cbse 11th physics motion in a straight line chapter case study questions with answers, cbse 11th physics units and measurements chapter case study questions with answers, 11th standard cbse study materials.

11th Standard CBSE Subjects

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Tn state board / cbse, 3000+ q&a's per subject, score high marks.

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CBSE Class 11th Physics Term-1 2021-22: Topic-Wise MCQs, Case-Based & A/R

Cbse class 11th  physics term-1 2021-22: topic-wise mcqs, case-based & assertion/reason.

In This Post I Have Provided Class 11th  Physics Chapter-Wise MCQs, Case-Based Question & Assertion/Reason of Session 2021-22 With Solution. CBSE has Recently Included These Types Of MCQs  Assertion/Reason And Case-Based Questions.

CBSE Class 11th  Physics  Term-1 2021-22: Topic-Wise MCQs, Case-Based & Assertion/Reason

For Downlod   Click Here

Any student who want to good score for their term 1 exams, then they have to practice these types of MCQs, Assertion/Reason and case-based questions.

Given Below Are The 11th Physics Chapter Name with Respective Links Containing Study Material :

CBSE Sample Papers For Class 11 Physics

CBSE sample paper for class 11th Physics is an important tools to analyse itself. Before going to final examinations every student try to solve different types of sample question paper. It will enhance your knowledge and also provide to increase mental ability. Sample question paper are the best resources for the student to prepare for their Board examinations.

These sample question papers are very helpful to the student to get an entire experience before attempting the Board examinations papers. If students solve different types of sample question papers then they get the good confidence about the appropriate answer and they make good score in their Board examinations.

As every student know CBSE always change their exam pattern and also the model paper for their Board examinations that is why it is very important to all the student to understand the Model paper pattern before going to the final examinations.

In this articles I have provided different types of question papers on the basis of CBSE latest exam pattern which will definitely help to the student for the good preparation for their examinations.

In every year before the Board examination, CBSE provide model test paper to the student, on the basis of these model test papers I have prepared sample question papers for class 11th Physics which will help to the student to understand the concept of model test paper and also it will help to the student for good preparation for their board examination.

CBSE Sample Paper:

Maths And Physics With Pandey Sir is a website which provide free study material and notes to every students who are preparing for their Board examinations. By going in Level Section you can select CBSE sample papers. In this section, I have provided CBSE sample paper for class 9th to 12th.

Also if you are preparing for any competitive exams, they can find out study material and important notes in Level Section. In this website I have also provided most important MCQs questions, Assertion/Reason based questions and case study based questions for Board examinations or any other competitive examinations.

Benefits Of Solving CBSE Sample Papers for Examination:

Time Management:-

With the help of CBSE sample question papers you can make a proper strategy for their examinations also by practicing sample question papers you can manage your time during the Board examinations.

Examination Strategy:-

After practicing different types of sample question papers you can understand on which section you have spend more time and which section is easy and which section is hard. In this way you can make a proper examination strategy.

Self Evaluation:-

Self evaluation is very important to every student because with the help of self evaluation, student can understand their weak and strong point, which is very important for any Board examinations. After practicing more and more simple paper you can evaluate himself.

To Identify Silly Mistakes:-

As every student know there are many questions in their question paper which are very easy  but student make mistakes in this types of question. By solving different types of sample question papers you can reduce their silly mistakes.

Advantages Of CBSE Sample Question Papers:

* To get a good exam ideas about your examination paper patterns

* Student can easily access to the question papers

* It is very helpful to know about the mark distribution system.

* Helpful in self evaluation

* To know about the pattern of CBSE

* Help to adjust a proper time management

* Available in PDF format

* Chapter wise CBSE sample papers

* CBSE sample papers for class 10

* CBSE sample paper class 12

* CBSE sample paper 2021-22 class 12 Solutions

* CBSE sample paper class 11

* CBSE Sample paper class 9

• CBSE Sample Papers
• CBSE Class 11 Sample Papers
• CBSE Class 11 Physics Sample Papers

CBSE Sample Papers for Class 11 Physics

CBSE Sample Papers for Class 11 Physics are made available by subject experts so that students can practice well and get prepared for their exams. Physics is a subject that requires constant practice along with an idea as to what kind of questions are going to be asked. Theory and numerical go hand in hand in Physics, which requires a mix of memory and comprehension skills. By solving the CBSE sample papers for Class 11 Physics, students get enough practice that they can face the real exam with full confidence. Practising the CBSE Sample Papers also makes them comfortable with the question paper format.

Here we have provided the CBSE Class 11 Physics Sample Paper for students. These sample papers are created by the experts and are as per the  CBSE Class 11 Syllabus . By practising them, students will get to know how much they are actually prepared to face the exam. They will also get to know the areas where they are lagging behind. Working on them can help them improve their performance in the exam.

Students can download the CBSE Class 11 Sample Papers for Physics from the table below. Along with the CBSE class 11 Sample Papers , we have also provided the solutions. Students must go through the solution PDF after solving the sample paper. It will help them to know the answer writing skill through which they can fetch more marks in the exam. Also, it will resolve the doubts that they have faced while solving the sample paper. We have also provided 3 sets of CBSE Class 11 Physics Sample Papers without solutions for students to practice.

These Class 11 Physics sample papers are the best resource for practice. If they solve these papers by considering that they are writing the actual exam, they can reap the maximum benefit. Doing so will also increase their scores in the annual exam.

We hope students have found this information on “CBSE Sample Paper for Class 11 Physics” useful for their exam preparation. Keep learning and stay tuned for further updates on CBSE and other competitive exams. Download the BYJU’S App and subscribe to the YouTube channel to access interactive Maths and Science videos.

Frequently Asked Questions on CBSE Class 11 Physics Sample Papers

How can a student score full marks in class 11 physics subject.

Following the points below can help a student score maximum marks: 1. Focus on the Exam pattern and Syllabus of CBSE Class 11 Physics 2. Importance should be given to previous year QPs 3. Solve the maximum number of Sample QPs 4. Revise properly

Are Physics Sample QPs tougher than the actual exam question paper?

Physics sample QPs are framed in such a way as to expose all possible questions to the students. The benefit of solving these Sample QPs is that it aids in building the confidence of the student.

Which are the most important chapters in Class 11 Physics?

Each and every chapter should be given equal importance while preparing for the exam. However, to understand the weightage of each chapter, the Syllabus and marking scheme provided by the CBSE can be referred to by the students.

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Case Study Questions Class 11 Physics Thermodynamics

Case study questions class 11 physics chapter 12 thermodynamics.

CBSE Class 11 Case Study Questions Physics Thermodynamics. Important Case Study Questions for Class 11 Board Exam Students. Here we have arranged some Important Case Base Questions for students who are searching for Paragraph Based Questions Thermodynamics.

At Case Study Questions there will given a Paragraph. In where some Important Questions will made on that respective Case Based Study. There will various types of marks will given 1 marks, 2 marks, 3 marks, 4 marks.

CBSE Case Study Questions Class 11 Physics Thermodynamics

Case study – 1.

Zeroth Law of Thermodynamics states that two systems in thermal equilibrium with a third system separately are in thermal equilibrium with each other. The Zeroth Law clearly suggests that when two systems A and B, are in thermal equilibrium, there must be a physical quantity that has the same value for both. This thermodynamic variable whose value is equal for two systems in thermal equilibrium is called temperature ( T) . Thus, if A and B are separately in equilibrium with C, TA = TC and T B = T C . This implies that T A = T B i.e. the systems A and B are also in thermal equilibrium. Zeroth Law of Thermodynamics leads to the concept of internal energy of a system. We know that every bulk system consists of a large number of molecules. Internal energy is simply the sum of the kinetic energies and potential energies of these molecules. A certain amount of heat is supplied to the system’ or ‘a certain amount of work was done by the system its energy changes.

1) Three thermodynamic systems are at temperature of 50 0 c .what can we say about them?

a) Heat flows between them

b) It obeys Zeroth Law of Thermodynamics

c) Temperature of one system will increase and temperature of remaining two will decrease

d) None of these

2) Zeroth law of thermodynamics helped in the creation of which scale?

a) Temperature

b) Heat energy

c) Pressure

d) Internal energy

3) State Zeroth Law of Thermodynamics

4) Define Internal energy of system

Answer key – 1

3) Zeroth Law of Thermodynamics states that two systems in thermal equilibrium with a third system separately are in thermal equilibrium with each other. i.e. when two systems A and B, are in thermal equilibrium individually with system C then these two systems are also in thermal equilibrium with each other.

4) Internal energy is the sum of the kinetic energies and potential energies of all the molecules possesses by system.

Case Study – 2

Heat engine is a device by which a system is made to undergo a cyclic process that results in conversion of heat to work. It consists of a working substance–the system. For example, mixture of fuel vapors and air in a gasoline or diesel engine or steam in a steam engine are the working Substances. The working substance goes through a cycle consisting of several processes. In some of these processes, it absorbs a total amount of heat Q1 from an external reservoir at some high temperature T1. In some other processes of the cycle, the working substance releases a total amount of heat Q2 to an external reservoir at some lower temperature T2. The work done (W) by the system in a cycle is transferred to the environment via some arrangement (e.g. the working substance may be in a cylinder with a moving piston that transfers mechanical energy to the wheels of a vehicle via a shaft). The basic features of a heat engine are schematically represented in Fig.

The cycle is repeated again and again to get useful work for some purpose. The discipline of Thermodynamics has its roots in the study of heat engines. A basic question relates to the efficiency of a heat engine. The efficiency (h) of a heat engine is defined by

Where Q1 is the heat input i.e., the heat absorbed by the system in one complete cycle and W is the work done on the environment in a cycle. In a cycle, a certain amount of heat (Q2) may also be rejected to the environment. Then according to the First Law of Thermodynamics, over one complete cycle.

W = Q1 – Q2

η = 1 – Q2 / Q1

For Q2 = 0, η = 1, i.e., the engine will have 100% efficiency in converting heat into work. Note that the First Law of Thermodynamics i.e., the energy conservation law does not rule out such an engine. But experience shows that such an ideal engine with η = 1 is never possible.

A refrigerator is the reverse of a heat engine. Here the working substance extracts heat Q2 from the cold reservoir at temperature T2, some external work W is done on it and heat Q1 is released to the hot reservoir at temperature T1. The efficiency of refrigerator is expressed in terms of  coefficient of performance (α) of a refrigerator is given by

where Q2 is the heat extracted from the cold reservoir and W is the work done on the system

1) In a heat engine the process need not be cyclic. True or False?

2) Efficiency of heat engine η=100% is it practically possible?

3) Define efficiency of heat engine

4) Define coefficient of performance

5) Write a note on heat engine

Answer Key – 2

3) Efficiency of heat engine is defined as ratio of work done by the engine to the heat supplied to the engine. Mathematically,

η = W / Q1  or η = 1 – Q2/Q1

where, Q2 is heat rejected to sink.

4) The efficiency of refrigerator is expressed in terms of coefficient of performance (α) of a refrigerator is defined as ratio of desired output to the work supplied to the refrigerator and given by

Where Q2 is the heat extracted from the cold reservoir and W is the work done on the System.

5) Heat engine is a device in which system undergo a cyclic process that results in conversion of heat to work. It consists of, mixture of fuel vapors and air in a gasoline or diesel engine or steam in a steam engine as the working Substances. The working substance goes through a cycle consisting of several processes.

Case Study – 3

Kelvin-Planck statement: No process is possible whose sole result is the absorption of heat from a reservoir and the complete conversion of the heat into work.

Clausius statement: No process is possible whose sole result is the transfer of heat from a colder object to a hotter object. It can be proved that the two statements above are completely equivalent.

A thermodynamic process is reversible if the process can be turned back such that both the system and the surroundings return to their original states, with no other change anywhere else in the universe. a reversible process is an idealized motion. A process is reversible only if it is quasi-static (system in equilibrium with the surroundings at every stage) and there are no dissipative effects. For example, a quasi-static isothermal expansion of an ideal gas in a cylinder fitted with a frictionless movable piston is a reversible process.

The free expansion of a gas is irreversible. The combustion reaction of a mixture of petrol and air ignited by a spark cannot be reversed. Cooking gas leaking from a gas cylinder in the kitchen diffuses to the entire room. The diffusion process will not spontaneously reverse and bring the gas back to the cylinder. The stirring of a liquid in thermal contact with a reservoir will convert the work done into heat, increasing the internal energy of the reservoir. The process cannot be reversed exactly; otherwise it would amount to conversion of heat entirely into work, violating the Second Law of Thermodynamics. Irreversibility is a rule rather an exception in nature.

1) The diffusion process is

a) Reversible process

b) Irreversible process

2) A quasi-static isothermal expansion of an ideal gas in a cylinder fitted with a frictionless movable piston is

3) State Kelvin Planck statement.

4) State Clausius statement.

5) Define reversible processes and irreversible processes of thermodynamics.

Answer key – 3

3) Kelvin-Planck statement states that We cannot construct any device like the heat engine that operates on a cycle, absorbs the heat energy, and completely transforms this energy into an equal amount of work. Some of the heat gets released into the atmosphere. Practically no device bears 100% thermal efficiency.

4) According to clausius It is nearly impossible for heat to move by itself from a temperature that is lower in temperature to a reservoir that is at a higher temperature. That is we can say that the transfer of heat can only occur spontaneously from high temperature to temperature. i.e  No process is possible whose sole result is the transfer of heat from a colder object to a hotter object  without any external work provided to do it in short we cannot construct a refrigerator that can operate without any input work.

5) A thermodynamic process is said to be reversible if both the system and the surroundings return to their original states, with no other change anywhere else in the universe. On the other hand an irreversible process can be defined as a process in which the system and surrounding will not return to their original condition once the process is initiated.

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Case Study Questions for Class 11 Physics Chapter 3 Motion in a Straight Line

• Last modified on: 10 months ago
• Reading Time: 4 Minutes

Case Study Questions:

Question 1:

Average Speed and Average Velocity When an object is in motion, its position changes with time. So, the quantity that describes how fast is the position changing w.r.t. time and in what direction is given by average velocity. It is defined as the change in position or displacement (Δx ) divided by the time interval (Δt ) in which that displacement occurs. However, the quantity used to describe the rate of motion over the actual path, is average speed. It defined as the total distance travelled by the object divided by the total time taken.

(i) A 250 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 750 m is (a) 56 s (b) 68 s (c) 80 s (d) 92 s

(ii) A truck requires 3 hr to complete a journey of 150 km. What is average speed? (a) 50 km/h (b) 25 km/h (c) 15 km/h (d) 10 km/h

(iii) Average speed of a car between points A and B is 20 m/s, between B and C is 15 m/s and between C and D is 10 m/s. What is the average speed between A and D, if the time taken in the mentioned sections is 20s, 10s and 5s, respectively? (a) 17.14 m/s (b) 15 m/s (c) 10 m/s (d) 45 m/s

(iv) A cyclist is moving on a circular track of radius 40 m completes half a revolution in 40 s. Its average velocity (in m/s) is (a) zero (b) 2 (c) 4π (d) 8π

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Class 11 Physics Case Study Questions Chapter 3 Motion in a Straight Line

• Post author: studyrate
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In Class 11 Final Exams there will be Case studies and Passage Based Questions will be asked, So practice these types of questions. Study Rate is always there to help you. Free PDF Downloads of CBSE Class 11 Physics Chapter 3 Case Study and Passage-Based Questions with Answers were Prepared Based on the Latest Exam Pattern. Students can solve Class 11 Physics Case Study Questions Motion in a Straight Line  to know their preparation level.

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In CBSE Class 11 Physics Paper, There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Motion in a Straight Line Case Study Questions With Answers

Here, we have provided case-based/passage-based questions for Class 11 Physics  Chapter 3 Motion in a Straight Line

Case Study/Passage-Based Questions

Case Study 1:

When an object is in motion, its position changes with time. But how fast is the position changing with time and in what direction? To describe this, we define the quantity average velocity. Average velocity is defined as the change in position or displacement ( △ x) divided by the time intervals ( △ t), in which the displacement occurs:

Where x2 and x1 are the positions of the object at times t2 and t1, respectively. The SI unit for velocity is m/s or m s–1, although km h–1 is used in many everyday applications. Like displacement, average velocity is also a vector quantity. Average speed is defined as the total path length traveled divided by the total time interval during which the motion has taken place:

Average speed = Total path length/ Total time interval.

Average speed has obviously the same unit (m s –1 ) as that of velocity. But it does not tell us in what direction an object is moving. Thus, it is always positive (in contrast to the average velocity which can be positive or negative). If the motion of an object is along a straight line and in the same direction, the magnitude of displacement is equal to the total path length.

The velocity at an instant is defined as the limit of the average velocity as the time interval Dt becomes infinitesimally small. In other words

Note that for uniform motion, velocity is the same as the average velocity at all instants. Instantaneous acceleration is defined in the same way as the instantaneous velocity

1) For uniform motion instantaneous velocity is the same as

• a) Average velocity
• b) Average acceleration
• c) Instantaneous speed
• d) None of these

Answer: a) Average velocity

2 If velocity is constant then

• a) Acceleration is zero
• b) Acceleration is positive
• c) Acceleration is negative

Answer: a) Acceleration is zero

What is average velocity defined as? a) Total path length / Total time interval b) Displacement / Time interval c) Speed / Direction d) Time interval / Displacement

Answer: b) Displacement / Time interval

Which unit is used for velocity in everyday applications? a) m/s b) m s–1 c) km/h d) Both a and b

Answer:c) km/h

Which of the following is true about average speed? a) It is a vector quantity b) It can be negative c) It is always positive d) It describes the direction of motion

Answer: c) It is always positive

Case Study 2:

When an object is in motion, its position changes with time. So, the quantity that describes how fast is the position changes w.r.t. time and in what direction is given by average velocity. It is defined as the change in position or displacement (Δx ) divided by the time interval (Δt ) in which that displacement occurs. However, the quantity used to describe the rate of motion over the actual path is average speed. It is defined as the total distance traveled by the object divided by the total time taken.

(i) A 250 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 750 m is (a) 56 s (b) 68 s (c) 80 s (d) 92 s

Answer: (c) 80 s

(ii) A truck requires 3 hr to complete a journey of 150 km. What is the average speed? (a) 50 km/h (b) 25 km/h (c) 15 km/h (d) 10 km/h

Answer: (a) 50 km/h

(iii) Average speed of a car between points A and B is 20 m/s, between B and C is 15 m/s and between C and D is 10 m/s. What is the average speed between A and D, if the time taken in the mentioned sections is 20s, 10s and 5s, respectively? (a) 17.14 m/s (b) 15 m/s (c) 10 m/s (d) 45 m/s

Answer: (a) 17.14 m/s

(iv) A cyclist is moving on a circular track of a radius of 40 m and completes half a revolution in 40 s. Its average velocity (in m/s) is (a) zero (b) 2 (c) 4π (d) 8π

Answer: (b) 2

Hope the information shed above regarding Case Study and Passage Based Questions for Class 11 Physics Chapter 3 Motion in a Straight Line with Answers Pdf free download has been useful to an extent. If you have any other queries about CBSE Class 11 Physics Motion in a Straight Line Case Study and Passage-Based Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible. By Team Study Rate

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