Work and Power Flashcards
1
Q
What is work
A
The amount of energy transferred between two energy stores. This is measured in Joules (J)
2
Q
Work equation
A
W = FsWork = force * direction
3
Q
minimum force needed to lift something
A
Force = weight of object
4
Q
Kinetic energy equation
A
Ek = (mv^2)/2
5
Q
Gravitational potential energy equation
A
Ep = mgh
6
Q
Power definition
A
Energy transferred per unit time. Measured in Watts (W)
7
Q
Power equation
A
P = E/t = w/t
8
Q
work done equation
A
work done = energy transferred = force x distance moved in direction of force
