Energy And Power Flashcards
1
Q
Energy you Supply to the Motor Per Second is the ________ Supplied to it.
A
Power.
2
Q
The More Powerful an Appliance is, the Faster the Rate at which it __________ Energy.
A
Transfers.
3
Q
Power (W) = Energy Transferred To ____________ (J) / Time Taken For _________ To Be Transferred (S).
A
Appliance…Energy…
4
Q
Power Rating of a Torch?
A
1W.
5
Q
Power Rating of an Electric Lightbulb?
A
100W.
6
Q
For an Appliance:
A
- Its Useful Power Out is the Useful Energy Per Second Transferred by it.
- Its Total Power In is the Energy Per Second Supplied to it.
7
Q
Efficiency = Useful Power Out / Total ________ In (x100%).
A
Power.
8
Q
Power Wasted = Total Power In - __________ Power Out.
A
Useful.
