PHYSICS EQUATIONS Flashcards

1
Q

density

A

mass/volume

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2
Q

distance

A

speed x time

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3
Q

acceleration

A

Change in velocity / time

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4
Q

kinetic energy

A

0.5 x mass x speed^2

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5
Q

force

A

mass x acceleration

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6
Q

momentum

A

mass x velocity

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7
Q

work done

A

force x distance

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8
Q

power

A

work done / time

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9
Q

force exerted by spring

A

extension x spring contstant

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10
Q

gravity force

A

mass x gravitational field strength

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11
Q

potential energy

A

mass x height x gravitational field strength

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12
Q

pressure

A

force / area

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13
Q

moment of a force

A

force x distance

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14
Q

charge flow

A

current x time

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15
Q

potential difference

A

current x resistance

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16
Q

energy transferred

A

charge x potential difference

17
Q

power

A

V x I

Or

I^2 x R

18
Q

energy transferred

A

power x time

19
Q

wave speed

A

frequency x wavelength

20
Q

efficiency

A

useful output energy / input energy

21
Q

Change in thermal energy

A

mass x specific heat capacity x change in temp

22
Q

thermal energy for change in state

A

mass x specific latent heat

23
Q

constant

A

pressure x volume = constant

24
Q

pressure in a column of liquid

A

height of column x density x gravitational potential energy

25
Q

acceleration

A

v-u / t

26
Q

suvat

A

v^2 - u^2 / 2as

27
Q

energy in stretching

A

0.5 x spring constant x extension^2

28
Q

force on wire

A

magnetic flux density x current x length of wire

F = BIL

29
Q

potential difference and turns in a coil

A

V in PC / V in SC = Turns in PC / Turns in SC

30
Q

potential difference and current in coil

A

V x I in PC = V x I in SC