Flashcards in Equations Deck (16)

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1

## How to calculate weight?

### Mass x gravitational field strength

2

## How to calculate work done?

### force x distance

3

## How to calculate force applied to a spring?

### spring constant x extension

4

## How to calculate pressure?

### force normal to a surface / area of that surface

5

## How to calculate speed?

### distance / time

6

## How to calculate acceleration?

### change in velocity/ time taken

7

## How to calculate resultant force?

### Mass x acceleration

8

## How to calculate power?

### energy transferred / time

9

## How to calulate efficiency?

### useful output/ total power input

10

## How to calculate wave speed?

### frequency x wave length

11

## How to calculate charge flow?

### current x time

12

## How to calculate potential difference?

### current x resistance or power / curren

13

## How to calculate density?

### Mass/volume

14

## How to calculate power usingcurret?

### (current)2 x resistance

15

## How to calculate energy transferred?

### power x time or charge flow x potential difference

16