paper 1 equations Flashcards
1
Q
work done
A
force X distance
2
Q
kinetic energy
A
0.5 x mass x (speed)squared
3
Q
gravitational potential energy
A
mass x gravitational field strength x height
4
Q
power
A
energy transferred / time
5
Q
power
A
work done / time
6
Q
efficiency
A
useful power output energy transfer / total input energy transfer
7
Q
efficiency
A
useful power output / total power input
8
Q
charge flow
A
current x time
9
Q
potential difference
A
current x resistance
10
Q
power
A
potential difference x current
11
Q
power
A
(current)squared x resistance
12
Q
energy transferred
A
power x time
13
Q
energy transferred
A
charge flow x potential difference
14
Q
density
A
mass / volume
