Equations Flashcards by kathryn hewett

Q

Density

A

Mass / Volume

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Q

Weight

A

Mass x Gravitational Field Strength

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Q

Speed

A

Distance / Time

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Q

Power

A

Work done / Time

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Q

Resistance

A

Potential Difference / Current

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Q

Pressure

A

Force / Area

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Q

Work Done

A

Force x Distance

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Q

Charge

A

Current x Time

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Q

Momentum

A

Mass x Velocity

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Q

Energy transferred in stretching

A

0.5 x Spring constant x extension(^2)

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Q

Force exerted by spring

A

Extension x Spring constant

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Q

Gradient

A

Change in y / change in x

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Q

Uncertainty

A

Range / 2

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Q

Change in thermal energy

A

Mass x specific heat capacity x change in temperature

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Q

Thermal energy for a change in state

A

Mass x specific latent heat

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Q

Constant

A

Pressure x volume

Q

Acceleration

A

Change in velocity / time

Q

Uniform acceleration

A

Final velocity(^2) - initial velocity(^2) = 2 x acceleration x distance

Q

Force (moving)

A

Mass x acceleration

Q

Force

A

Change in momentum / time

Q

Gravity force

A

Mass x gravitational

Q

Potential energy

A

Mass x height x gravitational field strength

Q

Kinetic energy

A

0.5 x mass x speed(^2)

Q

Extension

A

New length - original length

Energy transferred

Charge x potential difference