Work, Power and Newtons Laws

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Last updated 9:00 PM on 11/13/25
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14 Terms

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work

force x distance

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units for work

Joules (J)

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Power

the rate at which work is done

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units for power

Watts (W)

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Force

A push or a pull

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Units for force

Newtons

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Newton's First Law

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

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Newton's Second Law

Force = mass x acceleration

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Newton's 3rd Law

For every action force there is an equal and opposite reaction force

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formula for power

P=W/t

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units for speed

m/s

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units for acceleration

m/s squared

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Units for velocity

m/s and direction

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Inertia

The tendency of an object to resist a change in motion

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