Paper 1 Flashcards
1
Q
Charge flow
A
Charge flow = current x time
2
Q
Potential difference
A
Potential difference = current x resistance
3
Q
Power using energy transferred
A
Power = energy transferred/ time
4
Q
Energy transferred
A
Energy transferred = charge flow x potential difference
5
Q
Density
A
Density = mass / volume
6
Q
Efficiency
A
Efficiency = useful energy or power / total energy or power
7
Q
Work done
A
Work done = force x distance
8
Q
Kinetic energy
A
Kinetic energy = 0.5 x mass x speed^2
9
Q
Gravitational potential energy
A
Gravitational potential energy = mass x gravitational field strength x height
10
Q
Power using work done
A
Power = work done / time
11
Q
Power using potential difference
A
Power = potential difference x current
12
Q
Power using resistance
A
Power = current^2 x resistance
