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1.1 Energy changes in a system, and the ways energy is stored before and after such changes

1.1 Energy changes in a system, and the ways energy is stored before and after such changes

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Question 8
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An electric scooter is charged using a home charger, and its battery stores energy to run its motor.

a.

Write down the equation that links energy transferred (EEE), power (PPP), and time (ttt).

[1]
b.

The battery pack of the electric scooter can store 5 760 000 J5\,760\,000\text{ J}5760000 J of energy. The charger has a power output of 800 W800\text{ W}800 W. Calculate the time taken to fully recharge the battery pack from empty.

[2]
c.

When the scooter is running, the potential difference across its motor is 36 V36\text{ V}36 V, and there is a current of 12 A12\text{ A}12 A flowing through it. Calculate the resistance of the motor.

[2]
Markscheme

1.1 Energy changes in a system, and the ways energy is stored before and after such changes Questions

  1. GCSE
  2. /Physics
  3. /1.1 Energy changes in a system, and the ways energy is stored before and after such changes

44 exam-style questions on AQA GCSE Physics 1.1 Energy changes in a system, and the ways energy is stored before and after such changes, covering 1.1.1 Energy stores and systems, 1.1.2 Changes in energy, 1.1.3 Energy changes in systems, and 1.1.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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