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14 Cards in this Set
- Front
- Back
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Motion |
an object's change in posistion relative to a reference point |
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Speed |
the distance traveled divided by the time during which the motion occured |
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Velocity |
the speed of an object in a particular direction |
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Friction |
a force that opposes motion between two surfaces that are in contact
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Force |
a push or pull exerted on an object in order to change the motion of an object; has size and direction
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Newton |
the SI unit for force
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Net Force |
the combination of all the forces acting on an object
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Reference Point |
an object that is used in comparison to see if something is in motion
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Gravity |
a force of attraction between objects that is due to their masses
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Weight |
a measure of gravitational force exerted on an object
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Mass |
a measure of the amount of matter in an object
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Constant Velocity |
says that an object in motion is moving in a straight line at a constant speed
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Resultant Velocity |
the result if two or more velocity vectors are added or subtracted
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Acceleration |
the rate at which velocity (speed and direction) changes over time |
