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force and motion
Term | Definition |
---|---|
gravity | a force that pulls everything and everybody towards earth |
mass | is the amount of matter in an object |
weight | a measure of the force Earth's gravity on the mass of the object or living thing |
air resistance | the force of air that pulls a falling object |
newtons 1st law | law of inertia |
newtons 2nd law | law of acceleration |
newtons 3rd law | for every action there is an equal and opposite reaction |