Formulae Flashcards
1
Q
Distance Travelled
A
Distance travelled = average speed × time
2
Q
Acceleration
A
Acceleration = change in velocity / time taken
3
Q
Force
A
Force = mass × gravitational field strength
4
Q
Weight
A
Weight = mass × gravitational field strength
5
Q
Momentum
A
Momentum = mass × velocity
6
Q
Work Done
A
Work done = force × distance moved in the direction of the force
7
Q
Kinetic Energy
A
Kinetic energy = 1/2 × mass × speed2
8
Q
Change in gravitational potential energy
A
Change in gravitational potential energy = mass × gravitational field strength × change in vertical height
9
Q
Efficiency
A
Efficiency = useful energy transferred by the device / total energy supplied to the device
10
Q
Wave speed
A
Wave speed = frequency × wavelength
11
Q
Power
A
Power = work done ÷ time taken
