ocr a level physics research report example

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OCR (A) A-Level Physics Revision

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Year 12 ocr practicals.

These videos are a brief summary of each experiment. They include the theory, equipment, safety considerations and measurements to be taken.

You may find that with the equipment at your school there are some slight variations to the method and how you analyse your data. Please comment on the videos on my YouTube channel if you have any queries or would like to share your experiences with other students.

PAG 1.1 - Calculating 'g' using a Free-Fall Method

Dropping a steel ball bearing through light gates can be used to find the acceleration due to gravity. Recording the time taken for it to fall as you then change the distance between the gates allows a graph to be plotted the the value of 'g' determined.

nu stem  - Finding a value of 'g'

PAG 1.2 - Investigating Terminal Velocity

There are a lot of ways to investigate the terminal velocity of an object moving through a fluid. You can drop paper cupcake cases, or in this example a ball bearing through bubble bath. The exact set up varies with the equipment at your school, but in this video I explain how you can use video to record the data which is then analysed.

PAG 1.2 [Extension] - Viscosity of a Liquid

This is an extension task that allows you to calculate the viscosity of the liquid that an object is moving through. The equation looks daunting and relies on Stokes' Law, however, once you have measured all the terms you simply input the data to find a value for viscosity.

PAG 1.3 - Velocity and Stopping Distance

A wooden block sliding along a desk can be used to model a vehicle coming to a stop. This investigation is a good introduction to the use of light gates - so lots of information can be recorded quickly as the experiment proceeds.

PAG 2.1 - The Young's Modulus of Copper

This is a straight-forward way to measure the Young's Modulus of a material. Copper wire is often used as it is stretched by weights hung over the edge of the bench, with the small extension carefully measured with a ruler.

Wear eye protection in-case the wire snaps.

PAG 2.2 - Springs in Series and Parallel

This is a straight forward practical where you can investigate how combinations of springs in series or parallel behave when loaded. Be aware that when working with springs you should wear eye protection.

PAG 2.3 - Testing Plastic Bags

In this experiment you can investigate the behaviour of a material other than metal. Plastic bags can be easily tested and due to the manufacturing process may have slightly different characteristics in different directions.

PAG 3.1 - Measuring Resistivity of a Wire

Resistivity is a material property that can be measured by recording the resistance of various lengths of wire of a known cross section. Make sure that you only connect the circuit for a short time to minimise any heating effects of the current.

PAG 3.3 - Internal Resistance of a Cell

You can calculate the internal resistance of a cell by changing the external resistance of the circuit and recording the terminal p.d of the cell. When a graph is plotted the gradient is the negative value of 'r' while the y-intercept should be equal to the e.m.f. of the cell.

nu stem  - e.m.f. anf Internal Resistance

PAG 3.3 - Max Power of a Cell

Once you have taken measurements for current and potential difference as a cell is connected to circuits with a changing amount of resistance, you can then work out the power of the cell and plot how this changes as the resistance of the external circuit increases. 

PAG 4.1 - Investigating Combinations of Resistors

This practical involves setting up a number of circuits with combinations of resistors in series and parallel. It allows you the opportunity to use a  multimeter as an ohmmeter and to see for yourself the relationship between resistance and p.d in a series circuit.

PAG 4.3 - Using Non-Ohmic Devices as Sensors

LDRs and thermistors change their resistance when subject to different light intensities and temperatures. This makes them useful in a potential divider circuits where the potential difference across them also changes which can be used to turn on or off other parts of a circuit.

PAG 5.1 - Measuring the Wavelength of Light

A laser will also diffract and interfere when shone through a diffraction grating.  The distance to the first, second and third order maxima can be measured which will then allow the wavelength of the light to be calculated.

Be careful with the laser. Do not look at the beam or any reflected light from a shiny surface.

nu stem  - Diffraction

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Short Story on Entrapment. 8:00 Sharp

Salina Kumbu English Coursework Zahra Fontenelle 8:00 Sharp 10 seconds to go…5…4…3…2…1…8:00. Every room in the orphanage lit up with the echoing 8:00 chime until the house fell silent. I lay on my bed slowly sinking into the silence until a great bang woke the house. Scratching, growling and panting noises grew louder and louder from the top of the hallway, from The Red Door; the door no one ever used. However even though it scared me, I was not surprised; every night we had to be in our rooms by 8:00 sharp for fear of running into the monster. The orphanage owner, Ms Kravon was a small, chubby woman. She constantly smelt of wet dog, which was weird because we were not allowed pets. She told us daily she was protecting us but every night I felt more trapped than ever. Girls had gone missing in the night. No one knew what the animal looked like; all we knew was that we would go to sleep with its roars ringing in our ears. “Everybody up NOW!” howled Ms Kravon. Her sudden outburst woke me up instantly. With a sigh, I stumbled out of bed. Another day at the orphanage. I walked to the old wardrobe and picked out my everyday checked dress that only got washed once a fortnight. After getting changed I stumbled downstairs to the cramped dining room full of 15 of us girls all wearing the same grey checked dresses. I had been the first orphan to be

• Word count: 1675
• Level: AS and A Level
• Subject: English

"Explain the part Pilgrimage plays in the life of Christians"

Georgina Thomas -AO2- "Explain the Part Pilgrimage plays in the life of Christians" There are many reasons for going on pilgrimage. Some go on Pilgrimage searching for God, to reaffirm their faith. Others go to have the opportunity to worship freely with other believers, a feeling of belonging, being 'allowed' to worship. Another reason is to go as an act of penance to make up for sin; this reason isn't as common as it was in the Middle Ages when priests would sometimes give pilgrimage as a penance The benefits from going on pilgrimage vary from person to person. A sense of belonging is one of the many things gained. The person I interviewed was a relative who went on pilgrimage in May of this year, she said 'I gained a lot from travelling; I had an overwhelming mountaintop experience whilst proceeding around the Stations of the Cross, meeting new people along the way'. She also said "the spiritual discipline showed me a kind of peacefulness I don't normally come across.' my relative believes she can find peace in Lourdes that she cannot get anywhere else. Others may say a lot is gained purely if you stay open to the new surroundings. Lasting friendships are gained in this way. Some pilgrims may strengthen their relationship with God and gain an understanding of their blessings and failings. Also pilgrims can realize how lucky they are, with good health and not take it for

• Word count: 844
• Level: GCSE
• Subject: Religious Studies (Philosophy & Ethics)

"Explain the role of motivation in enhancing a sports performer"

"Explain the role of motivation in enhancing a sports performer" Motivation is a key element in sports psychology. Investigation into motivation continues to this day and many theorists persist to propose legitimate theories and explorations. Sage (1974) stated that motivation is 'The internal mechanisms and external stimuli which arouse and direct our behaviour'. Exploring Sage's theory further, he believes that motivation concerns inner drives towards a goal as well as an external drive or pressure. He also considers the body's arousal levels as another significant factor in motivation. However, Clarke (1999) believes that motivation is the 'Internal process that creates and maintains the desire to move toward goals'. This theory is stating that motivation is produced inside the body and no external factor factors should affect it. In simple terms, motivation is 'The drive to strive'. This translates to the individual must have a desire or stimulation to do something, therefore being motivated to do so. The question of how do we get motivated is a question that many theorists may ask and investigate in great detail. Firstly encouragement and praise gives the individual an incentive, also wanting to prove people wrong and being motivated off other people's energy and enthusiasm are factors concerning this too. Motivation influences both the mind and body, as well as this;

• Word count: 1624
• Level: University Degree
• Subject: Business and Administrative studies

"Explain the varying incidence of witch hunts in time and place across Europebetween 1500 and 1700".

Dean Miller History 2nd MA Semester 1 3. "Explain the varying incidence of witch hunts in time and place across Europe between 1500 and 1700". Matriculation Number: 02 203015 5 Tutor: Martine van Ittersum "Explain the varying incidence of witch hunts in time and place across Europe between 1500 and 1700". It has been estimated that during the period of 1500 to 1700 around nine million 'witches' were burnt at the stake throughout the European continent. The aim of this essay is to compare and contrast different time periods and specific areas of Europe between 1500 and 1700, and critically asses how the so-called witch-craze unravelled. From the period of 1500 to 1700 witches came to symbolize superstitious aspects of popular religion. Catholic and Protestant churchmen identified and persecuted witches as part of the campaign to acculturate the masses with 'acceptable' beliefs. Witch hunts peaked during the first half of the Seventeenth Century. In the south-western states of the Holy Roman Empire alone, it is estimated that more than 300 separate witch trials resulted in the execution of 2,500 people between 1570 and 1630, almost all women - in itself not surprising as church authorities and priests were all male. Theologians and judges sought to demonstrate that accused witches embodied the kingdom of the Devil. To some extent the Catholic Reformation wanted

• Word count: 1736
• Subject: Historical and Philosophical studies

"Explain what a study of Mark's Gospel can tell Christians about the nature of discipleship"

"Explain what a study of Mark's Gospel can tell Christians about the nature of discipleship" By looking at Marks's Gospel we can find out a lot about the nature of Discipleship and the Apostles. The Apostles name's were Simon Peter, Andrew his brother, James the son of Zebedee, John his brother, Philip, Bartholomew, Thomas, Matthew the publican who changed his name from Levi to indicate a new life, James the son of Alphaeus, Thaddeus, Simon the Cananite and Judas. The word 'Apostle' means someone chosen out ordinary disciples to become a leader. When a priest/vicar is ordained, this means he is now an Apostle. An Apostle is anyone chosen to Preach. There is some controversy to whether Mary Magdalene is an Apostle, but according to Mark, she is not counted in the final twelve. Catholics would say that Apostles are only male leaders in the church, but in the Church of England they believe that any disciple can become an Apostle, male of female. The word Apostle is from the Greek word 'to send'. A disciple is someone who learns, listens and follows. Anybody can be a disciple and anyone who follows Jesus is a disciple. When Jesus called the Apostles, they were ordinary men with ordinary lives who all wanted something. The four fishermen wanted taxes to change and the tax collector Mathew led a comfortable life, but was lonely. There were two zealots in the group, and their

• Word count: 983

"Explain what is meant by Rapid Applications Development (RAD) and discuss the reasons for the increased use of this method for information systems development in recent years".

Computer Based Information Systems Assignment 2 Leslie Spiers 8th December 2001 "Explain what is meant by Rapid Applications Development (RAD) and discuss the reasons for the increased use of this method for information systems development in recent years" Bocij defines RAD as "a method of developing information systems which uses prototyping to achieve user involvement and faster development compared to traditional methods such as SSADM"1 Bocij goes on to clarify his understanding of the term "prototyping" and defines it as "a preliminary version of a part or a framework of all of an information system that can be reviewed by end-users."2 He furthermore states that the process is iterative and that end-user involvement is considerable in proposing modifications prior to the development of further prototypes and in advance of the construction of the final solution. In a similar way, Turban McLean and Wetherbe refer to the importance of iteration and the development of the user interface as a mission critical component of RAD and thus explaining its proximity to prototyping3 They go on to outline the components and capabilities of a RAD system which include such packages as: The development of an appropriate Graphical User Interface A library of common objects such as dialogue boxes and icons A code generator that automatically writes programmes to implement

• Word count: 1060
• Subject: Mathematical and Computer Sciences

"Explain why it was Stalin rather than Trotsky who succeeded Lenin as ruler of the USSR"

The Succession of Lenin - Stalin or Trotsky 24th January 2004 "Explain why it was Stalin rather than Trotsky who succeeded Lenin as ruler of the USSR" After Lenin's death in 1924, there was a struggle between the leading Bolsheviks to succeed Lenin as leader of the USSR. In the end, it emerged as a contest between Leon Trotsky and Joseph Stalin. There were several reasons why it was Stalin rather than Trotsky who succeeded Lenin, and it is these I shall be exploring in this essay. Trotsky seemed like the obvious successor, and consequently he became inactive. He was over-confident, arrogant, and failed to take any threat seriously, least of all the quiet Stalin and so did nothing to try to discredit Stalin or reverse the damage Stalin did to him. In late 1923, when Trotsky needed to be at his most active, he became ill with a malaria-like disease. He also failed to use his popularity in the Red Army to his advantage or to stop his removal from the Politburo or office of Commissar for War. Trotsky's inactiveness resulted in people thinking Stalin was better than him. Trotsky was unpopular in the party because of his inactiveness in increasing his popularity within the party. He couldn't rely on the vote from other party members as he regularly offended leading Bolsheviks like Zinoviev and Kamenev. A series of arguments with them heightened by Trotsky's 'The Lessons of

• Word count: 795
• Subject: History

"Explore how Bronte uses setting to reflect the experiences of her characters".

Jane Eyre-English Coursework "Explore how Bronte uses setting to reflect the experiences of her characters". Bronte describes every setting in "Jane Eyre" in a vast amount of detail, using a number of different language techniques, so as to portray the experiences of her characters, almost subconsciously, to the reader. She seeks also to convey the moods of her characters, using methods such as pathetic fallacy and symbolism, in order to express their emotions indirectly. Bronte uses all of these methods, as well as a number of scenes containing juxtaposition, and the overall structure of her writing style, consistently throughout the book, as she follows Jane through her life. Jane's personal changes and experiences, at each stage in her life, and those of her fellow characters, are powerfully communicated to the reader. Bronte employs close descriptive detail in her portrayal of Gateshead which reflects Jane's emotional turmoil. As well as this, she uses symbolism when setting the scene in the red room, in order to portray Jane's feelings and mood to the reader. For example, she describes all of the red objects within the room: " hung with curtains of deep red damask", " the carpet was red" and " the table at the foot of the bed was covered with a crimson cloth". These vivid, deep shades of red all are known to symbolise danger and blood, which usually tend to create a

• Word count: 2993

"Explore some of the ways in which Bronte protests against the prevailing 19th century views on education and religion in the first nine chapters of 'Jane Eyre'."

The prevailing 19th century views on education and religion in the first nine chapters of 'Jane Eyre' "Explore some of the ways in which Bronte protests against the prevailing 19th century views on education and religion in the first nine chapters of 'Jane Eyre'." Imagine a girl growing up around the turn of the nineteenth century. An orphan, she has no family or friends, no wealth or position. Misunderstood and mistreated by the relatives she does have, she is sent away to a school where the cycle of cruelty continues. All alone in the world, she seems doomed to a life of failure. What's a girl to do? I think that Jane's later life is how Charlotte would have liked her own to be. It is like many stories, even those written in the present day, which is the author's fantasy. The fairytale-like ending resembles not just any fairytale, but one in particular, Cinderella. 'Jane Eyre' is set in the early to mid nineteenth century and we see how different life today is, compared with the time which Jane lived. Immediately we see that Lowood's religious education does not necessarily mean the orphans are treated well. Their food is basically inedible, their lodgings are cramped, and some of the teachers are cruel. Bronte drops a few hints about the suspicious goings-on when Helen reveals that "benevolent-minded ladies and gentlemen" make up the tuition and that Mr. Brocklehurst

"Explore the different types of humour that are used in television advertising".

Contents .0 Executive Summary 3 2.0 Introduction and Research Objectives 4 3.0 Previous Research 6 4.0 Research Design 8 5.0 Analysis 12 6.0 Limitations of the study 24 7.0 Conclusion 25 8.0 References 26 9.0 Appendices 27 - Humour Questionnaire 28 - Table of Results 30 . "Explore the different types of humour that are used in television advertising". 2. e .0 Executive Summary This report aims to investigate which types of humour are more prevalent in television advertising. Codruta & Gail's (2001) study of the seven classifications of humour was used to compare the study's findings. It was discovered that silliness was used mostly in television advertising and this was similar to the results of Codruta & Gail's own research. Observation was carried out over four

• Word count: 5210

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