Power Flashcards
1
Q
What is power?
A
Power is the amount of energy transferred each second.
2
Q
What is power measured in?
A
Watts (W)
3
Q
What is the equation to power?
A
Power (W) = Work done (J) / Time (s)
4
Q
Engine A transfers 225J electrically in 45s. How powerful is it?
A
Power = 225J / 45s = 5W
5
Q
Convert all of these to J:
a) 1KJ
b) 1MJ
c) 1GJ
A
a) 1,000J
b) 1,000,000J
c) 1,000,000,000
