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Flashcards in Equations Deck (31)
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1

Mass =

Weight / GFS

Force / acceleration

Momentum / velocity

Kinetic energy / (0.5 x speed squared)

GPE / (GFS x height)

Density x volume

2

Weight =

Mass x GFS

3

GFS =

Weight / mass

GPE / (mass x height)

4

Work done =

Force x distance

Power x time

5

Force =

Work done / distance

Mass x acceleration

6

Distance =

Work done / force

Speed x time

7

Speed =

Distance / time

Square root of [KE / (0.5 x mass)]

8

Time =

Distance / speed

Change in velocity / acceleration

Energy transferred / power

Work done / power

Charge flow / current

9

Momentum =

Mass x velocity

10

KE =

0.5 x mass x speed squared

11

Velocity =

Momentum / mass

12

GPE =

Mass x GFS x height

13

Height =

GPE / (mass x GFS)

14

Power =

Energy transferred / time

Work done / time

PD x current

Current squared x resistance

15

Energy transferred =

Power x time

Charge flow x potential difference

16

Efficiency =

Useful output energy transfer / total input energy transfer

Useful power output / total power output

17

Useful power output =

Efficiency x total power output

18

Total power output =

Useful energy output / efficiency

19

Wave speed =

Frequency x wavelength

20

Frequency =

Wave speed / wavelength

21

Wave length =

Wave speed / frequency

22

Charge =

Current x time

Energy transferred/ PD

23

Current =

Charge / time

PD / resistance

Power / PD

Square root of (power / resistance)

24

PD =

Current x resistance

Energy transferred/ charge

Power / current

25

Resistance =

PD / current

Power / current squared

26

Density =

Mass / volume

27

Useful output energy transfer =

Efficiency x total input energy transfer

28

Total input energy =

Useful output energy transfer / efficiency

29

Acceleration =

Change in velocity/ time taken

Force / mass

30

Change in velocity =

Acceleration x time taken