Equations Flashcards by Archie Carter

Q

Distance Travelled=

A

Speed x Time

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Q

Acceleration=

A

Change in velocity
—————————
Time taken

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Q

Force=

A

Mass x Acceleration

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Q

Weight=

A

Mass x Gravitational field strength

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Q

Efficiency=

A

(useful energy transferred)
————————————
(total energy supplied)

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Q

Wave Speed=

A

Frequency x Wavelength

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Q

Wave speed 2=

A

Distance (divide) Time

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Q

Density=

A

Mass (divide) Volume

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Q

Work Done=

A

Force x Distance moved in direction of force

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Q

Change in gravitational potential energy=

A

Mass x Gravitational field strength x Change in vertical height

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Q

Kinetic energy=

A

1/2 x Mass x (speed)

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Q

Power=

A

Work done (divide) Time taken

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Q

Energy transferred=

A

Charge moved x Potential difference

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Q

Charge=

A

Current x Time

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Q

Potential difference=

A

Current x Resistance

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Q

Power 2=

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A

Energy transferred (divide) Time taken

Q

Electrical power=

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A

Current x Potential difference

Q

Electrical Power 2=

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A

Current squared x Resistance

Q

Force exerted on a spring=

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A

Spring constant x Extension