All Equations Flashcards

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1
Q

Average Speed =

A

Distance moved / time taken

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2
Q

Acceleration =

A

Change in velocity / time taken

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3
Q

(Final speed)**2 =

A

(initial speed)**2 + (2 x acceleration x distance moved)

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4
Q

Force =

A

Mass x Acceleration

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5
Q

Weight =

A

Mass x gravitational field strength

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6
Q

Momentum =

A

Mass x velocity

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7
Q

Force (using momentum)

A

Change in momentum / time taken

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8
Q

Moment =

A

Force x perpendicular distance from pivot

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9
Q

Wave speed =

A

Frequency x wavelength

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10
Q

Frequency =

A

1 / Time period

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11
Q

Refractive index =

A

sin i / sin r

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12
Q

Critical angle =

A

1 / refractive index

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13
Q

Efficiency =

A

(useful energy output / total energy output) x 100%

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14
Q

Work done =

A

force x distance moved

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15
Q

GPE =

A

mass x gravitational field strength x height

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16
Q

Kinetic Energy =

A

1/2 x mass x speed**2

17
Q

Power =

A

work done / time taken

18
Q

Density =

A

Mass / volume

19
Q

Pressure =

A

Force / Area

20
Q

Pressure difference =

A

Height x Denisty x gravitational field strength

21
Q

Change in thermal energy =

A

mass x specific heat capacity x change in temperature

22
Q

Relationship between pressure and Kelvin temperature

A

p1 / T1 = p2 / T2

23
Q

Relationship between pressure and volume

A

p1 x V1 = p2 x V2