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Flashcards in Formula Deck (22)
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1
Q

Distance travelled

A

Distance travelled = average speed x time

2
Q

Acceleration

A

Acceleration = change in velocity / time taken

3
Q

Force

A

Force = mass x acceleration

4
Q

Weight

A

Weight = mass x gravitational field strength

5
Q

Efficiency

A

Efficiency = useful energy transferred by the device / total energy supplied to the device

6
Q

Momentum

A

Momentum = mass x velocity

7
Q

Wave speed (1)

A

Wave speed = distance / time

8
Q

Wave speed (2)

A

Wave speed = frequency x wavelength

9
Q

Density

A

Density = mass / volume

10
Q

Work done

A

Work done = force x distance moved in direction of force

11
Q

Change in gravitational potential energy

A

Change in gravitational potential energy = mass x gravitational field strength x change in vertical height

12
Q

Kinetic energy

A

Kinetic energy = 0.5 x mass x speed(squared)

13
Q

Power

A

Power = work done / time taken

14
Q

Energy transferred

A

Energy transferred = charge moved x potential difference

15
Q

Charge

A

Charge = current x time

16
Q

Potential difference

A

Potential difference = current x resistance

17
Q

Power (2)

A

Power = energy transferred/ time taken

18
Q

Electrical power (1)

A

Electrical power = current x potential difference

19
Q

Electrical power (2)

A

Electrical power = current(squared) x resistance

20
Q

Force exerted from a spring

A

Force exerted from a spring = spring constant x extension

21
Q

Moment of force

A

Moment of force = force x distance normal to the direction of the force

22
Q

Pressure

A

Pressure = force normal to surface / area of that surface