Word equations Flashcards
1
Q
Kinetic energy
A
0.5 x mass x (speed)²
2
Q
Gravitational potential energy
A
Mass x gravitational field strength x height
3
Q
Power… (energy)
A
Energy transfered / time
4
Q
Power… (work done)
A
Work done / time
5
Q
Efficiency… (energy)
A
Useful output energy transfer / total input energy transfer
6
Q
Efficiency… (power)
A
Useful power output / total power output
7
Q
Charge flow
A
Current x time
8
Q
Potential difference
A
Current x resistance
9
Q
Power…(Potential difference)
A
Potential difference x current
10
Q
Power… (Current)
A
(Current)² x resistance
11
Q
Energy transfered… (power)
A
Power x time
12
Q
Energy transfered… (charge flow)
A
Charge flow x potential difference
13
Q
Density
A
Mass / volume
14
Q
Weight
A
Mass x gravitational field strength
15
Q
Work done
A
Force x distance (along the line of action of force)
