equations Flashcards
1
Q
work done
A
force x distance
2
Q
kintetic energy
A
0.5 x mass x (speed)^2
3
Q
gravitational potential energy
A
mass x gravitational field stregnt x height
4
Q
power e
A
energy transferred/time
5
Q
power
A
work done/time
6
Q
efficiency t
A
useful power input/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 2
A
(current)^2 x resistance
12
Q
energy transferred
A
charge flow x pd
13
Q
density
A
mass/volume
