Paper Reference(s) Edexcel GCSE Additional Science (5019) Physics (5047) P2 Topics 9 to 12 Foundation and Higher Tier

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1 Surname Initial(s) Signature Paper Reference(s) Edexcel GSE dditional Science (519) Physics (547) P2 Topics 9 to 12 Foundation and Higher Tier Thursday 11 November 21 fternoon Time: 2 minutes Materials required for examination Multiple hoice nswer Sheet H pencil, eraser and calculator Items included with question papers Nil Instructions to andidates Use an H pencil. o not open this booklet until you are told to do so. Mark your answers on the separate answer sheet. Foundation tier candidates: answer questions Higher tier candidates: answer questions ll candidates are to answer questions efore the test begins: heck that the answer sheet is for the correct test and that it contains your candidate details. How to answer the test: For each question, choose the right answer,,, or and mark it in H pencil on the answer sheet. For example, the answer would be marked as shown. Mark only one answer for each question. If you change your mind about an answer, rub out the first mark thoroughly, then mark your new answer. o any necessary calculations and rough work in this booklet. You may use a calculator if you wish. You must not take this booklet or the answer sheet out of the examination room. Printer s Log. No. N38443 W85/R1535/5757 1/1/1/1/1/1/ *N38443* Turn over This publication may be reproduced only in accordance with Edexcel Limited copyright policy. 21 Edexcel Limited.

2 You may find the following formulae useful. FORMULE average velocity = displacement time v s = t acceleration = change in velocity time ( v u) a = t force = mass acceleration F = m a momentum = mass velocity p = m v change in potential energy = mass gravitational field strength change in height PE = m g h kinetic energy = ½ mass (velocity) 2 KE = ½ m v 2 electrical energy = voltage current time power = work done time taken E = V I t P = W t work done = force distance moved in the direction of the force W = F s N

3 Questions 1 to 16 must be answered by Foundation tier candidates only. Higher tier candidates start at question 17. Radioactivity 1. The type of radiation used to sterilise hospital equipment is beta particles gamma rays sound waves alpha particles 2. Which of these can pass through a few centimetres of lead? alpha particles beta particles gamma rays ultraviolet light 3. The diagram represents a lithium atom. X not to scale Particle X is an electron a proton a neutron a nucleus 4. Which of these radiations is least likely to pass through skin cells? alpha particles beta particles gamma rays X-rays N Turn over

4 ar safety 5. This data is from a government survey on wearing seat belts. percentage of car occupants wearing a seat belt year In this survey, between 26 and 27, the percentage of car occupants wearing a seat belt has decreased by 2% increased by 2% increased by 93% increased by 95% 6. Which of these would increase the stopping distance of a car? decrease the grip between the tyres and the road decrease the speed of the car decrease the driver s reaction time increase the force from the brakes 7. car driver brakes suddenly. She exerts a force of 5 N on her seat belt. What is the force exerted on the driver by the seat belt? zero less than 5 N 5 N more than 5 N N

5 8. Researchers compared the colours of cars which were involved in crashes in poor light. They found that black cars were 1.5 times more likely than white cars to crash. Which graph best shows this data? number of cars involved in crashes in poor light black white colour of car number of cars involved in crashes in poor light black white colour of car number of cars involved in crashes in poor light black white colour of car number of cars involved in crashes in poor light black white colour of car Static electricity 9. n object is charged by friction. The object is charged due to the transfer of atoms neutrons protons electrons N Turn over

6 1. The diagram shows two charged balloons hanging from strings. Which row of the table is correct for the balloons? the balloons the charges on the balloons are repel the same repel opposite attract the same attract opposite 11. The diagram shows part of a machine. electric charge rotating drum ray of light The ray of light removes electric charges from parts of the rotating drum. The machine is an inkjet printer a digital camera a laser printer a television 12. petrol tanker becomes positively charged as it moves. When it stops, the driver connects the tanker to Earth with a conducting strip. This removes the built-up charge by conducting positive charge from the tanker to the Earth positive charge from the Earth to the tanker negative charge from the tanker to the Earth negative charge from the Earth to the tanker N

Use this information to answer questions 13 to 15. lan and his friends visit a theme park. They try a log flume ride. The diagram below shows part of the ride.

7 Use this information to answer questions 13 to 15. lan and his friends visit a theme park. They try a log flume ride. The diagram below shows part of the ride. log W track not to scale X water splash Y Z 13. The log has most gravitational potential energy at W X Y Z 14. Which row is correct for the log as it enters the water splash at Y? the frictional forces on the log the speed of the log increase increases increase decreases decrease increases decrease decreases N Turn over

8 15. Work is done to raise the log to W. ll of the energy gained is eventually transferred to other forms. This is an example of power efficiency energy conservation renewable energy energy accumulation 16. The graph shows how the speed of the log changes at another part of the ride. t which point is the log travelling at a steady speed? speed time N

Higher tier candidates start at question 17 and answer questions 17 to 4. Questions 17 to 24 must be answered by all candidates: Foundation tier and Higher tier Nuclear power 17.

9 Higher tier candidates start at question 17 and answer questions 17 to 4. Questions 17 to 24 must be answered by all candidates: Foundation tier and Higher tier Nuclear power 17. The diagram represents nuclear fission Which of the particles shown in the diagram is a daughter nucleus? not to scale 18. In a nuclear power station, the chain reaction is controlled by absorbing neutrons absorbing protons producing neutrons producing protons 19. In the past, some people thought that drinking water containing radioactive elements would cure many illnesses. Nowadays, we have laws and rules about using radioactive elements. This is because radioactive elements have become more dangerous there are not many radioactive elements left radioactive elements are much more expensive now the dangers of radioactive elements are better understood now N Turn over

10 2. radioactive isotope has a half-life of 2 minutes. sample contains 12 g of this isotope. How much of this isotope remains after 6 minutes? g 1.5 g 3 g 4 g Movement and forces 21. car is accelerated by a force. The mass of the car and the force are changed to increase the acceleration. Which row of the table shows the changes that would give the biggest increase in acceleration? mass of the car is force on the car is doubled halved doubled doubled halved halved halved doubled 22. skydiver jumps out of an aeroplane. Which graph shows the size of the downward force on the skydiver as she falls? size of downward force time N

11 23. The graph shows how the force used to move an object varies with distance. force in N distance in m The work done to move the object from 2 m to 5 m is 4 J 6 J 1 J 14 J 24. Which of these graphs shows how the gravitational potential a bird varies with its height above the Earth s surface? gravitational potential energy gravitational potential energy 1 height in m 1 height in m gravitational potential energy gravitational potential energy 1 height in m 1 height in m TOTL FOR FOUNTION TIER PPER: 24 MRKS Foundation tier candidates do not answer any more questions after question 24. N Turn over

12 Questions 25 to 4 must be answered by Higher tier candidates only. Foundation tier candidates do not answer questions 25 to 4. Radiation 25. Some students are discussing background radiation. osmic rays are a source of background radiation. ackground radiation is constant throughout the UK. lan en Some background radiation from space is absorbed by the atmosphere. arol ackground radiation from rocks has decreased since the Earth was formed. ave Who has not made a correct statement? lan en arol ave 26. n atom of iron has 26 protons, 26 electrons and 3 neutrons. Which of these describes the nucleus of the iron atom? 82 3Fe 82 26Fe 56 26Fe 56 3Fe 27. Which row of the table is correct for the isotopes of uranium? atomic number mass number is the same is different is the same is the same is different is the same is different is different N

13 28. The graph shows the decay of radioactive iodine. activity in q time in minutes t a time of 1 minutes, the activity will be about q 25 q 5 q 1 q Nuclear power 29. Which of these describes how energy is transferred in a nuclear power station? nuclear energy kinetic daughter nuclei kinetic turbine thermal coolant electrical energy from generator chemical energy kinetic daughter nuclei thermal coolant electrical energy from generator kinetic turbine nuclear energy kinetic daughter nuclei thermal coolant kinetic turbine electrical energy from generator chemical energy kinetic daughter nuclei thermal coolant kinetic generator electrical energy from turbine N Turn over

14 3. Yttrium-99 (Y-99) forms this decay series Y 99 4Zr 99 41Nb 99 42Mo 99 43Tc 99 44Ru Which row of the table is correct for each stage of the decay series? atomic (proton) number mass (nucleon) number stays the same stays the same stays the same increases by one increases by one stays the same increases by one increases by one 31. Which row of the table is correct for nuclear fusion? the temperature needed is the density needed is nuclear fusion is the source of energy for very low very low stars very low very high nuclear power stations very high very low nuclear power stations very high very high stars N

15 Forces and motion 32. The diagram shows three of the forces acting on a downhill skier. air resistance 8 N friction 3 N 2 N The resultant of these forces is 9 N down the slope 9 N up the slope 31 N up the slope 31 N down the slope 33. The speed of the skier is measured at two points on the course. The skier accelerates steadily between the two points. speed of skier = 8. m/s speed of skier = 14. m/s time = 4. seconds time = 1. seconds The acceleration of the skier is.6 m/s 2 1. m/s m/s m/s 2 N Turn over

16 Use this information to answer questions 34 and 35. The graph shows how the velocity of a skydiver varies for the first part of his descent. velocity of skydiver in m/s time in seconds 34. Some students discuss the motion of the skydiver. His velocity increases at a steady rate until it reaches terminal velocity. my cceleration due to gravity gradually decreases until he reaches terminal velocity. ob ir resistance is constant and when it equals gravity he reaches his terminal velocity. arol ir resistance increases with speed until it balances his weight and then he reaches his terminal velocity. ave Which student gave a correct statement? my ob arol ave N

35. The mass of the skydiver is 1 kg. What is the kinetic the skydiver at terminal velocity? 1 125 J 31 25 J 8 J 11 25 J Work, energy and power 36. crane lifts a box from a lorry on to a building.

17 35. The mass of the skydiver is 1 kg. What is the kinetic the skydiver at terminal velocity? J J 8 J J Work, energy and power 36. crane lifts a box from a lorry on to a building. The box has a mass of 5 kg. Gravitational field strength, g = 1 N/kg not to scale 2 m building 1 m The increase in gravitational potential the box is 9 5 J 1 J 95 J 1 J 37. model motor has an output power of 2 W. The motor lifts a load of 2 N at a steady speed for a time of 5 seconds. How many metres is the load lifted? 1 m 5 m 2 m 5 m 38. oth the mass and the velocity of an object are doubled. The kinetic the object is now twice as much three times as much four times as much eight times as much N Turn over

18 39. satellite orbits a planet. The satellite travels at a steady speed in a circular orbit. Two students discuss this circular motion. The satellite orbits at a steady speed and it is accelerating. Who is correct? Peter s the satellite orbits the planet, a resultant force pushes the satellite away from the planet. Stuart Peter only Stuart only both Peter and Stuart neither 4. Two students are discussing scientific theories. New theories are not accepted until other scientists obtain the same results as the original experiment. Kim You can disprove a theory if the results of a reliable and valid experiment disagree with the predictions of the theory. Toni Who is correct? Kim only Toni only both Kim and Toni neither TOTL FOR HIGHER TIER PPER: 24 MRKS EN N

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Edexcel GCSE Additional Science (5020F) Physics (5048F) P2 Topics 9 to 12 Foundation Tier Wednesday 16 June 2010 Morning Time: 30 minutes

Centre No. Paper Reference (complete below) Surname Initial(s) Candidate No. F 1 F Signature Paper Reference(s) 5020F/1F 5048F/1F Edexcel GCSE Additional Science (5020F) Physics (5048F) P2 Topics 9 to