Physics Equations Flashcards by Hafsa Mango

Q

Distanced travelled

A

Speed x time

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Q

Acceleration

A

change in velocity/ time {a= v-u/t}

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Q

force

A

Mass x acceleration {f=ma}

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Q

weight

A

mass x gravitational field strength {w= mg}

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Q

efficiency

A

useful/total

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Q

momentum

A

mass x velocity {p=mv}

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Q

wave speed

A

frequency x wavelength {v=fλ)

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Q

wave speed 1

A

distance/time {v= 𝑥/t}

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Q

density

A

mass/volume {ρ=m/V}

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Q

work done

A

force x distance moved in direction of force

{E= Fd}

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Q

Change in GPE

A

Mass x gfs x change in height

{ΔGPE= mgΔh}

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Q

Kinetic energy

A

1/2x mass x speed²

{KE=1/2mv²}

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Q

Power 2

A

work done/ time

{P= E/t}

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Q

Energy transferred

A

charge moved x potential difference

{E= QV}

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Q

Charge

A

current x Time {It}

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Q

Potential difference

A

current x resistance {V= IR}

Q

power

A

energy transferred/ time taken

{P= E/t}

Q

electrical power

A

current x potential difference

{P=IV}

Q

electrical power 2

A

current² x resistance

{P= I²R}

Q

force exerted on a spring

A

spring constant x extension

{F= k𝑥}

Q

moment of a force

A

force x distance normal to direction of force

Q

pressure

A

force normal to surface/ area of surface

{P= F/A}