Equations Flashcards
1
Q
Kinetic energy
A
1/2 x mass x (velocity)^2
2
Q
Gravitational potential energy
A
Mass x gravitational field strength x height
3
Q
Work done
A
Force x distance from
4
Q
Forces:
Power
A
Energy transferred/time
5
Q
Power:
A
Work done/time
6
Q
Efficiency
A
Useful power output/total power input
7
Q
Charge
A
Current x time
8
Q
P.d.
A
Current x resistance
9
Q
Electricity:
Power
A
Current^2 x resistance
10
Q
Electricity:
Power
A
Potential difference x current
11
Q
Density
A
Mass/volume
12
Q
Energy required
A
Mass x specific latent heat
