Physics Exam Questions

Multiple choice, 'producing and measuring electricity', and 'you're in charge' exam paper for GCSE physics

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Surname Initial(s)
Paper Reference(s)
Edexcel GCSE
Physics P1a
Topic 9: Producing and Measuring
Topic 10: You're in Charge
Foundation and Higher Tiers
Monday 25 June 2007 ­ Morning
Time: 20 minutes
Materials required for examination Items included with question papers
Multiple Choice Answer Sheet Nil
HB pencil, eraser and calculator
Instructions to Candidates
Use an HB pencil. Do not open this booklet until you are told to do so.
Mark your answers on the separate answer sheet.
Foundation tier candidates: answer questions 1 ­ 24.
Higher tier candidates: answer questions 17 ­ 40.
All candidates are to answer questions 17 ­ 24.
Before the test begins:
Check 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, A, B, C or D
and mark it in HB pencil on the answer sheet. A B D
For example, the answer C 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.
Do 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.
N29513A Turn over
W850/R1535/57570 7/7/3/33,000
This publication may be reproduced only in accordance with Edexcel Limited copyright policy. ©2007 Edexcel Limited.

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Page 2

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Questions 1 to 16 must be answered by Foundation tier candidates only.
Higher tier candidates start at question 17.
Renewable energy
1. One form of renewable energy is
A solar
B coal
C oil
D natural gas
2. In a wind turbine, electricity is generated when a magnet is rotated
A next to a thermistor
B next to another magnet
C inside a coil of wire
D inside a battery
3.…read more

Page 3

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The battery powered birthday present
Jim received an electric motor bike for his birthday.
Jim's motor bike is battery powered.
The battery stores energy from the mains.
6. Jim's motor bike uses
A an a.c. dry battery
B a d.c. dry battery
C an a.c. rechargeable battery
D a d.c. rechargeable battery
7. The useful energy change in the bike's motor is
A chemical electrical
B electrical chemical
C electrical kinetic
D electrical thermal
8. Jim measures the current in the motor.…read more

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Jim finds that the average current in the motor is 12 amps. The fully charged battery runs out
after 3 hours.
The capacity, in amp-hours (A h), of this battery is
A 4
B 7.5
C 15
D 36
10. The motor has a power of 144 watts.
Some of Jim's friends try to explain what a power of 144 watts means.
Which explanation is correct?
It tells you the efficiency of the It tells you how much energy is
Jon motor.…read more

Page 5

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Use this information to answer questions 13 and 14.
Sally and Kate measure the current in a wire at different voltages.
Sally plots their results on a graph.
in amps
in volts
13.…read more

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To improve the accuracy of their results, Sally and Kate should
A repeat their measurements and calculate an average
B only use high voltages
C use alternating current instead of direct current
D use a computer to plot their graph
15. Sally and Kate wrote down a description of electric current.
In a wire, current is the rate of flow of negatively charged
A atoms
B molecules
C protons
D electrons
16.…read more

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Higher tier candidates start at question 17 and answer questions 17 to 40.
Questions 17 to 24 must be answered by all candidates: Foundation tier and Higher tier
Ben's fan
Ben has a small battery operated fan. He uses the fan to keep himself cool.
17. Ben wants to make the fan spin more slowly.
He adds a resistor in series with the fan circuit which decreases the speed of the motor.…read more

Page 8

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Homes for the future
Selina is designing a house. She will include some energy saving features in the house.
scale model of
Selina's house
Use this information to answer questions 20, 21 and 22.
Selina wants to find out which of these will save the most money:
· double glazing
· loft insulation
· cavity wall insulation.
She makes four models of the house. They are the same except for the type of insulation.…read more

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Which model saves the most energy?
A model 1 with loft insulation
B model 2 with double glazing
C model 3 with cavity wall insulation
D model 4 with no insulation
22. Selina could improve her experiment by using
A all three types of insulation in each model
B a different time for each experiment
C the same starting temperature for the water in each model
D a different volume of water in each model
23.…read more

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Questions 25 to 40 must be answered by Higher tier candidates only.
Foundation tier candidates do not answer questions 25 to 40.
Green football
There are plans to build a wind turbine to provide electricity for a Premiership football club.
25. Some club members are discussing the plans.
Which of these is correct?
The wind turbine will supply We will still need some of our
all our energy. energy from the National Grid.…read more


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