Unit 1 energy equations Flashcards
1
Q
Kinetic energy
A
1/2 x mass x speed2
Ek = 1/2 mv2
2
Q
Gravitational Potential Energy
GPE
A
mass x gravitational field strength x height
Ep = mgh
3
Q
Power
A
Work done/time taken
Or
Energy transferred/time taken
4
Q
Efficiency
A
Useful energy output/total energy input
Useful power output/total power input