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Flashcards in Physics equations (shhs) Deck (22)
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1

kinetic energy

0.5 x mass x (speed)2

2

elastic potential energy

0.5 x spring constant x (extention)2

3

Gravitational potential

mass x gravitational field stength x height

4

change in thermal energy

mass x specific heat capacity x temp change

5

Power

energy transferred / time

or 

work done / time 

 

6

Efficiency

useful output energy transfer / total input energy transfer

or

useful power output / total power input

7

charge flow

current x time 

8

potential difference

current x resistance

9

power

(current) 2 x ressistance

10

energy transferred

power x time

or 

charge flow x potential difference

11

density

mass / volume 

12

energy for a change of state 

mass x specific latent heat

13

weight

mass x gravitational field strength

14

work done

force x distance (moved along the line of action of the force)

15

force 

spring constant x extention

16

distance 

speed x time 

17

acceleration

change in velocity / time taken

18

resultant force

mass x acceleration

19

momentum 

mass x velocity

20

wave speed 

frequency x wavelength

21

force

 

(magnetism)

magnetic flux density x current x length

22