WORK, ENERGY, POWER Flashcards
1
Q
work
A
Force x Displacement (Joule = Newton Meter)
2
Q
energy
A
is the ability to do work
3
Q
principle of conservation of energy
A
states that energy cannot be created or destroyed but can only be converted from one form to another
4
Q
kinetic energy
A
Ek = 1/2mv2
5
Q
potential energy
A
Ep = mgh
6
Q
power
A
Work done ÷Time taken || P = w ÷ t (Watt = Joule/Second)
7
Q
percentage efficiency
A
(Output/Input) x 100
