GCSE Physics - Energy - 4 - Exam Style Questions with Answers

Created on February 17, 2023 By

paruppts12

GCSE_AQA_PHY_1_ENERGY_4

1 / 10

Light bulbs are labelled with a power input.
What does power input mean?

The energy transferred each second to the bulb.

The current through the bulb.

The potential difference across the bulb.

The charge transferred each second by the bulb.

2 / 10

The ball and the Earth form a system.
What is meant by ‘a system’?

Objects with big differences in mass.

A group of objects that interact.

Objects with gravitational potential energy.

3 / 10

C

A

B

4 / 10

Gravitational potential energy; kinetic energy; chemical energy

Sound energy; kinetic energy; chemical energy

Thermal energy ; elastic potential energy; sound energy

Potential energy; sound energy; Thermal energy

5 / 10

The power input to the motor is greater than the power output.
Tick one reason why?

Energy is transferred in heating the surroundings.

The motor is connected to the mains electricity supply.

There are only four people in the lift.

The motor is more than 100% efficient.

6 / 10

The image below shows a student before and after a bungee jump.
The bungee cord has an unstretched length of 20 m.
The student jumps off the bridge.
Before the student jumps from the bridge he has a store of
_____________________ energy.
When he is falling, the student's store of _____________________ energy increases.

Gravitational potential energy; kinetic energy

Sound energy; kinetic energy

Thermal energy ; elastic potential energy

Potential energy; sound energy

7 / 10

A student carried out an experiment to determine the specific heat capacity of water.
Figure 1 shows the equipment the student used to heat the water.
Why did the student insulate the beaker of water?

To increase energy transfer to the surroundings.

To reduce energy transfer to the surroundings.

To stop energy transfer to the surroundings.

8 / 10

A horse and a pony walk across a field at the same constant speed.
The horse has 4000 joules of kinetic energy.
The pony is half the mass of the horse.
What is the kinetic energy of the pony?

2000 J

8000 J

4000 J

9 / 10

A heater uses energy from a laptop computer to keep a drink hot.
The image shows a metal mug on the heater.
The laptop computer is operating on battery power.
How would connecting the heater affect the amount of time the laptop computer would operate for, before needing to be recharged?

it would not affect the time

it would decrease the time

it would increase the time

10 / 10

A student did an experiment to calculate her power.
The diagram below shows how she obtained the measurements needed.
The student first weighed herself and then ran up a flight of stairs. A second student timed how long it took her to go from the bottom to the top of the stairs. The height of the stairs was also measured.

How much gravitational potential energy did the student gain in going from the bottom to the top of the stairs?

2240 J

much more than 2240 J

much less than 2240 J

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The average score is 33%

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