Power Flashcards
1
Q
what is the equation for power
A
power = work done or energy transferred / time
2
Q
what does power therefore depend on
A
the rate at which energy is transferred
3
Q
what is power measured in
A
watts
4
Q
how can you show that power = force x velocity
A
- W = Fs
- P = W / t
- P = Fs / t
- P = F x (s / t)
- v = s / t
- so P = Fv
5
Q
what is one horsepower equivalent to
A
746W
