All LE and UF equations

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26 Terms

1
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speed

speed = distance/time

2
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acceleration

acceleration = change in velocity/time

3
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(final speed)2

(final speed)2 = (initial speed)2 + 2 x acceleration x distance moved

4
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force

force = mass x acceleration

5
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weight

weight = mass x gravitational field strength

6
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momentum

momentum = mass x velocity

7
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force

force = change in momentum/time taken

8
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moment

moment =

force x perpendicular distance from pivot

9
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orbital speed

orbital speed =

(2 x pie x orbital radius)/time period

10
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voltage

voltage = current x resistance

11
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charge

charge = current x time

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energy transferred

energy transferred = charge x voltage

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power

power = current x voltage

14
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energy transferred

energy transferred =

current x voltage x time

15
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wave speed

wave speed = frequency x wavelength

16
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frequency

frequency = 1/time

17
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refractive index

n = sin(i)/sin(r)

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critical angle

1/refractive index

1/n

19
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density

density = mass/volume

20
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pressure

pressure = force/area

21
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pressure difference

pressure difference = height x density x gravitational field strength

22
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energy transferred/ change in thermal energy

change in thermal energy =

mass x specific heat capacity x change in temp.

23
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work done

work done = force x distance moved

24
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gravitational potential energy

GPE = mass x gravity x height

25
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kinetic energy

kinetic energy = ½ x mass x speed2

26
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power

power = work done/time taken