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Flashcards in All Key Formulars Deck (22)
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1

Distance =

Speed x time.

2

Acceleration =

V-u/T

3

Force =

Mass x acceleration

4

Weight =

Mass x gravity

5

Momentum =

Mass x velocity

6

Wave speed =

Frequency x wavelength

7

Efficiency

Useful energy out/ total energy in.

8

Kinetic energy =

1/2 x mass x velocity(squared)

9

Change in GPE =

weight x change in height

10

Work done =

Force x distance moved in the direction of the force.

11

Power =

Work done / time

12

Energy transferred =

Charge moved x potential difference.

13

Potential difference =

Current x resistance.

14

Electrical power =

Current x potential difference.

15

Charge =

Current x time.

16

Electrical power (2) =

Current(squared) x resistance.

17

Density =

Mass / volume.

18

Force exerted onto a spring =

Spring constant x extension

19

Moment =

Force x distance moved perpendicular to force.

20

Pressure =

Force / surface area.

21

Resistance =

Voltage / current.

22

What is resistance measured in ?

Ohms