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science vobac
vocab
Term | Definition |
---|---|
motion | an objects change in positon relative to a reference point |
speed | distance traveled divided by the time interval during which the motion occurred |
velocity | the speed of an object in a particular direction |
acceleration | the rate at which velocity changes over time; an object accelerates if its speed, direction |
force | a push or pull extend on the in order to change the motion of the object force has size and direction |
newton | the si unit or force |
net force | the combination of all of the forces acting on an object |
friction | a force that opposes motion between two foreces |
gravity | a force of attraction between objects that is due to their masses |
weight | a measure of gravity of the gradational force extorted on an object its value can change with location of the object in the universe |
mass | a measure of the amount of the matter of the mass |