# Physics P1a - Foundation Tier - Monday 25 June 2007

16 Questions | Total Attempts: 43  Settings  Edexcel GCSE Physics P1a Topic 9: Producing and Measuring Electricity Topic 10: You’re in Charge Foundation Tier Monday 25 June 2007 – Morning Time: 20 minutes

• 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.
One advantage of solar cells over wind turbines is that solar cells
• A.

Supply alternating current

• B.

Have a low power output

• C.

Have fewer moving parts

• D.

Supply electricity continuously

• 4.
Current is produced in
• A.

A light-dependent resistor (LDR)

• B.

A fixed resistor

• C.

A solar cell

• D.

A thermistor

• 5.
Ian plans to use a wind turbine to supply all the electricity to his home. A disadvantage of this plan is
• A.

The wind does not blow all the time

• B.

The price of fossil fuels is rising

• C.

Wind turbines use renewable energy

• D.

Wind turbines produce greenhouse gases

• 6.
Jim received an electric motor bike for his birthday. Jim’s motor bike is battery powered. The battery stores energy from the mains.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. The arrangement he uses to do this is
• A.

Motor A

• B.

Motor B

• C.

Motor C

• D.

Motor D

• 9.
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?
• A.

Jon

• B.

Hassan

• C.

Julie

• D.

Kim

• 11.
Sally and Kate are investigating electric current during science lessons.Kate correctly explains direct current to Sally.A direct current in a wire is a flow of charge
• A.

Caused by resistance

• B.

In one direction only

• C.

That reverses

• D.

Which occurs when the wire is heated

• 12.
Sally and Kate researched sources of electric current. Which of these is not used as a source of electric current?
• A.

Solar cell

• B.

Torch battery

• C.

Bicycle dynamo

• D.

Light-dependent resistor (LDR)

• 13.
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.Which of these shows the line of best fit Sally should draw?
• A.

A

• B.

B

• C.

C

• D.

D

• 14.
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.
Sally and Kate finish their investigation by explaining how important electricity has been in changing people’s lives. Which of these developments has had the biggest effect on the making of the modern world?
• A.

Thermistors

• B.

The Internet

• C.

Bicycle dynamos

• D.

Solar cells

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