Energy- Equations Flashcards
1
Q
Work done?
A
Work done = distance x force
2
Q
Power?
A
Power = work done / time taken
3
Q
Weight?
A
Weight = mass x gravity
4
Q
Gravitational potential?
A
Gravitational potential = Mass x gravity x height
5
Q
Kinetic energy?
A
1/2 mass x velocity*2
6
Q
Efficiency?
A
Efficiency = (Useful energy out / total energy input) x100
7
Q
What is the energy supplied?
A
Power x time
Power is measured in watts.
8
Q
Power wasted?
A
Power wasted = total power in - useful power out.
