Flashcards in Equations Deck (18)

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1

## kinetic energy =

### 1/2 x mass x speed²

2

## gravitational potential energy =

### mass x gravitational field strength x height

3

## power =

###
work done/energy transferred

________________________

time

4

## efficiency =

###
useful energy/power output

______________________

total energy/power input

5

## charge =

### current x time

6

## potential difference =

### current x resistance

7

## total resistance =

### resistance of component 1 + resistance of component 2

8

## power =

###
current x potential difference

current² x resistance

9

## energy transferred =

###
power x time

charge x potential difference

10

## density =

###
mass

_____

volume

11

## wavespeed =

### frequency x wavelength

12

## weight =

### mass x gravitational field strength

13

## work done =

### force x distance

14

## force applied to a spring =

### spring constant × extension

15

## pressure =

###
force

_____

area

16

## distance =

### speed x time

17

## resultant force =

### mass × acceleration

18