An electric scooter's battery is being charged.
State the equation that links energy transferred (EEE), power (PPP), and time (ttt).
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.
State the equation that links current (III), potential difference (VVV), and resistance (RRR).
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.
Practise AQA GCSE Physics Energy changes in a system, and the ways energy is stored before and after such changes with exam-style questions for Foundation and Higher tier. 64 questions covering Energy stores and systems, Changes in energy, Energy changes in systems, and Power, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.