Physics equations Flashcards by m ward

Q

Acceleration

A

Acceleration = change in velocity/time taken

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Q

Velocity

A

Velocity = distance travelled/ time taken

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Q

(Resultant) Force

A

Force = mass x acceleration

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Q

Work done

A

Work= force x distance

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Q

Power

A

Power = energy transferred/time

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Q

Volume

A

Volume = length x depth x breadth

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Q

Pressure

A

Pressure = force/area

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Q

Density

A

Density = mass/volume

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Q

Charge

A

Charge = current x time

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Q

Voltage

A

Voltage = energy transferred/charge

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Q

Resistance

A

Resistance = voltage/current

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Q

Frequency

A

Frequency = waves/second

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Q

Momentum

A

Momentum = mass x velocity

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Q

Moment

A

Moment = force x perpendicular distance from pivot

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Q

Voltage

A

V=IR

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Q

Wave speed

A

Wave speed = frequency x wavelength

Q

Angle of incidence

A

Angle of incidence = angle of reflection

Q

Refractive index

A

Refractive index (n) = sin(i)/sin(r)

Q

Refractive index

A

Refractive index (n) = 1/sin(critical angle)

Q

Power

A

Work done/ time taken

Q

Density

A

Density = mass/volume

Q

Pressure difference

A

Pressure difference = height x density x gravitational field strength

Q

Boyle’s law

A

p1 x V1 = p2 x V2

OR p1/p2 = V2/V1

Q

P1/T1 = P2/T2

A

P1/T1 = P2/T2

Q

Kelvin

A

0*C = 273K