1.3 The Usefulness Of Electrical Appliences Flashcards
1
Q
What is work done? And what is it measured in?
A
A way of describing energy transferred
Joules (J)
2
Q
What is power? And what is it measured in?
A
The rate of doing work
Watts (W)
3
Q
What does the amount of energy an appliance transfers depend on?
A
How long the appliance is switched on
Its power
4
Q
How does time affect wasted heat?
A
The greater the speed the greater the heat loss
