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9 Cards in this Set
- Front
- Back
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motion
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an object's change in position realitive to a reference point
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displacement
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the change in position of an object
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speed
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the distance traveled divided by the time interval during which the motion occurred
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velocity
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the speed of an object in a particalar direction
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acceleration
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the rate of which velocity changes over time an object accelerates if its 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 change of rest or motion force has magnitude and direction
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friction
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a force that oposes motion between two surfaces that are in contact
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static friction
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the force that reisist the inition of sliding motion between two surfaces that are in contact and at rest
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knitic friction
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the force that opisises the movement of two suurfaces that are in conitact and are sliding over each other
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