Flashcards in Formula Deck (22):

1

## Distance travelled

### Distance travelled = average speed x time

2

## Acceleration

### Acceleration = change in velocity / time taken

3

## Force

### Force = mass x acceleration

4

## Weight

### Weight = mass x gravitational field strength

5

## Efficiency

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

6

## Momentum

### Momentum = mass x velocity

7

## Wave speed (1)

### Wave speed = distance / time

8

## Wave speed (2)

### Wave speed = frequency x wavelength

9

## Density

### Density = mass / volume

10

## Work done

### Work done = force x distance moved in direction of force

11

## Change in gravitational potential energy

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

12

## Kinetic energy

### Kinetic energy = 0.5 x mass x speed(squared)

13

## Power

### Power = work done / time taken

14

## Energy transferred

### Energy transferred = charge moved x potential difference

15

## Charge

### Charge = current x time

16

## Potential difference

### Potential difference = current x resistance

17

## Power (2)

### Power = energy transferred/ time taken

18

## Electrical power (1)

### Electrical power = current x potential difference

19

## Electrical power (2)

### Electrical power = current(squared) x resistance

20

## Force exerted from a spring

### Force exerted from a spring = spring constant x extension

21

## Moment of force

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

22