Power + Energy Flashcards
1
Q
Define ‘Power’
A
- Energy transferred every second
2
Q
How do we work out power?
A
- Current x potential difference
3
Q
How is energy transferred by an appliance?
A
- It depends on its power and for how long it is switched on
4
Q
How do we work out the amount of energy transferred?
A
- Current x potential difference x time (a x u x s)