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10 Cards in this Set
- Front
- Back
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motion
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an objects change in postition relative to a refrence point
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frame of refrence
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a system for specifying te precise location of objects in space and time
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displacement
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the change in postion of an object
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speed
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the distance traveled divided by te time interval during which te motion occured
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velocity
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the speed of an object in a particular direction
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acceleration
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the rate at which velocity changes over time; an object accelerates if an objects speed, direction, or both change.
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force
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an action exerted on a body in order to change the body's state of rest or motion; force has magnitutede and directions magnitutde and direction
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friction
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a force that opposes motion between two surfaces that are in contact.
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static friction
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te force that resists the initiation of sliding motion between two surfaces that are in contact and at rest
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kinetic friction
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te force that opposes the movement of two surfaces that are in contact and are moving over eachother
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