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15 Terms

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Motion

Change in time and distance

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Displacement

The overall change in position

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Speed

How far a object travels per unit of time

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Average speed

The speed of motion when speed is changing

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Instantaneous speed

Speed at a instant in a given point of time

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Velocity

Speed and direction

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Force

Push/pull

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Net force

When 2+ forces act on a object

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Unbalanced motion

A object changing direction

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Balanced forces

When forces are equal in opposite directions

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Acceleration

A unbalanced force, causes things to speed up/ slow down, rate of change in velocity may be + or -

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Inertia

A tendency of and object to resist in motion

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Newtons first law of motion

A object moving in motion will remain in motion unless a a equal and opposite force acts on the object

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Newtons 2nd law

Force=mass x acceleration

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Newtons 3rd law

For every action there is a equal and opposite reaction