Flashcards in Equation Deck (25)

Loading flashcards...

0

## Speed

### Total distance / time taken

1

## Speed on distance time graph

### Gradient

2

## Acceleration

### A = (v-u )/t

3

## Weight

### Mass x10

4

## Density

### Mass / volume

5

## Extension

### Force = spring constant x extension

6

## Resultant force

### Mass x acceleration

7

## Moment

### Force x perpendicular distance to pivot

8

## Energy efficiently

### Useful output energy / total input energy

9

## Work done

### Work = force x distance

10

## GPE

### Mass x gravity x height

11

## KE

### 0.5 x mass x speed ^2

12

## Power

###
Work done / time taken

Energy / time

13

## Pressure

###
Force / area

Pressure x volume = constant

14

## Pressure in liquid

### Height x density x gravity

15

## Thermal capacity

### E / ( difference in temperature)

16

## Specific heat capacity

### E/ m x change in temperature

17

## Specific latent heat

### Energy / mass

18

## Speed of wave

### Wavelength x frequency

19

## Refractive index

###
Sin I / sin r

Speed of light in air / speed of light in medium

20

## Power ( electricity)

### I ^2 x R

21

## Voltage

### IR ; căn PR ; P/I ; W/Q

22

## Charge

### Q = I x t

23

## Energy ( electricity)

### V x I x t

24