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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Question 12

Medium

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

Write down the equation that links energy transferred ( $E$ ), power ( $P$ ), and time ( $t$ ).

[1]

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

[2]

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

[2]

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

Question 12

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

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

Question 12

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