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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 26

An electric scooter's battery is being charged.

a.

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

[1]
b.

The battery of the electric scooter can store 3.24×106 J3.24 \times 10^6\text{ J}3.24×106 J of energy. The charger has a power output of 180 W180\text{ W}180 W. Calculate the time taken, in seconds, to fully charge the battery from zero.

[2]
c.

State the equation that links current (III), potential difference (VVV), and resistance (RRR).

[1]
d.

When the scooter is running, the potential difference across its electric motor is 36 V36\text{ V}36 V. There is a current of 8.0 A8.0\text{ A}8.0 A in the motor. 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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