Work, Energy and Power Flashcards
1
Q
what is the formula for work done
A
W = Fs
2
Q
what is the formula for power
A
P = W/t
3
Q
what is the formula for work done when angles are involved?
A
W = FsCos(theta)
4
Q
If W = Fs and P = W/t what is power?
A
P = Fv
5
Q
what is the efficiency formula
A
Efficiency = useful power out/ total power in
6
Q
what is the formula for gravitational potential
A
(delta)Ep = mg(delta)h
7
Q
if mgh = 1/2mv^2 then what is v^2?
A
v^2 = 2gh
