The world of Motion and Forces

14 terms by theglynch

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Reference point

A place or object used for comparison to determine if an object is in motion

Motion

an object's change in position relative to a reference point

Speed

the rate at which an object moves (distance divided by time)

Magnet

a device that attracts iron and produces a magnetic field

Friction

the force that one surface exerts on another when the two rub against each other

Gravity

attractive force between two objects that depends on the masses of the objects and the distance between them

Force

a push or pull that acts on an object

Inertia

the tendency of a body to maintain its state of rest or motion unless acted upon by an external force

Velocity

the speed and direction of a moving object

Acceleration

the rate at which velocity changes.

Newton's 1st Law of Motion

An object at rest/motion will remain at rest/motion until acted upon by an outside force

Newton's 2nd Law of Motion

Force = Mass x Acceleration (F = ma)

Newton's 3rd Law of Motion

For every action there is an equal and opposite reaction

position

the location of a place or an object

Example: