Equations part 2 Flashcards by Kumael Agha

Q

Weight

A

Mass x gravitational field strength

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Q

Work done

A

Force x distance

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Q

Force applied to a spring

A

Spring constant x extension

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Q

Distance travelled

A

Speed x time

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Q

Acceleration

A

Change in velocity/time taken

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Q

Resultant force

A

Mass x acceleration

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Q

Momentum

A

Mass x velocity

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Q

Kinetic energy

A

0.5 x mass x speed2

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Q

Gravitational potential energy

A

Mass x gravitational field strength x height

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Q

Power(energy transferred)

A

Energy transferred/time

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Q

Power(work done)

A

Work done/time

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Q

Efficiency(energy transfer)

A

Useful output energy transfer/total input energy transfer

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Q

Efficiency(power)

A

Useful power output/total power output

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Q

Wave speed

A

Frequency x wavelength

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Q

Charge flow

A

Current x time

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Q

Potential difference

A

Current x resistance

Q

Power(potential difference)

A

Potential difference x current

Q

Power(current)

A

Power = current2 x resistance

Q

Energy transferred(transferred power)

A

Power x time

Q

Energy transferred(transferred charge flow)

A

Charge flow x potential difference

Q

Density

A

Mass/volume