GCSE Equations - All Flashcards
1
Q
kinetic energy
A
1/2 x mass x speed^2
2
Q
gravitational potential energy
A
mass x gravitational field strength x height
3
Q
power (P1)
A
work done/time taken or energy transferred/time taken
4
Q
efficiency
A
useful energy output/total energy input
5
Q
elastic potential energy
A
1/2 x spring constant x extension^2
6
Q
charge
A
current x time
7
Q
potential difference
A
current x resistance
8
Q
total resistance
A
resistance of component 1 + resistance of component 2
9
Q
power (P2) (no)
A
current x potential difference
10
Q
power (P2) (yes)
A
current^2 x resistance
11
Q
energy transferred (power)
A
power x time
12
Q
energy transferred (pd)
A
charge x potential difference
13
Q
density
A
mass/volume
14
Q
change in thermal energy
A
mass x specific heat capacity x temperature change
15
Q
thermal energy for change in state
A
mass x specific latent heat
