Work, Energy, Power, Energy resources Flashcards
1
Q
Moment
A
force x distance
moment Force= ------------
distance : from pivot
2
Q
Pressure
A
Force : N
pascal: Pressure: ———
Aera : M^2
3
Q
Mass
A
Force : Weight
Mass: ———-
Distance
4
Q
Work + Work done
A
Joules : Work: Force (N) x Distance (M)
Work done: Force x Distance
5
Q
Kinetic energy
A
1
- x mass x speed^2
2
6
Q
GPE
A
mass x 10 (gravity) x height
7
Q
Efficiency : Energy efficiency
A
Useful energy out put
——————————– x 100
total energy input
8
Q
Power Efficiency
A
total power input
9
Q
Power
A
