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F & M Test
Forces and Motion Test
Term | Definition |
---|---|
inertia | the tendency of an object to stay at rest or in motion |
momentum | a measure of how difficult it is to stop an object |
velocity | speed in a particular direction |
acceleration | the change in velocity divided by the time it takes for the change to occur (speeding up or slowing down) |
centripetal force | any force that causes an object to move in a circular path - PULLS EARTH IN A CIRCULAR MOTION AROUND THE SUN |
weight | a measure of the pull of gravity on an object |
friction | the force that opposes the motion of an object |
gravity | the force of attraction between all objects in the universe |
Newton's 1st Law of motion | an object at rest stays at rest or an object in motion stays in motion unless an unbalanced force acts upon it. |
Newton's 2nd Law of motion | an object acted upon by a force will accelerate in the direction of the force - Force = Mass x Acceleration |
Newton's 3rd Law of motion | for every action force there is an equal and opposite reaction force |
Deceleration | negative acceleration |