Equations Flashcards by Rory Steele

Q

Weight=

A

Mass x gravitational field strength

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Q

Work done=

A

Force x distance (along the line of action of the force)

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Q

Force applied to spring =

A

Spring constant x extension

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Q

Moment=

A

Force x distance

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Q

Pressure =

A

Force/area

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Q

Distance traveled

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

1/2 x mass x speed squared

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Q

Gravitational potential energy=

A

Mass x gravitational field strength x height

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Q

Power=

A

Energy transferred/time

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Q

Power=

A

Work done/time

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Q

Energy transferred=

A

Power x time

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Q

Efficiency=

A

Useful output energy transfer/total input energy transfer

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Q

Efficiency=

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A

Useful power out put/total power out put

Q

Wave speed=

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A

Frequency x wavelength

Q

Density=

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A

Mass/volume

Q

Charge flow=

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A

Current x time

Q

Potential difference (voltage)=

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A

Current x resistance

Q

Power=

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A

Potential difference x current

Q

Power=

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A

Current squared x resistance

Q

Energy transferred=

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A

Charge flow x potential difference