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11 Cards in this Set
- Front
- Back
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motion
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object's change in position relative to a reference point
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speed
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distance traveled divided by time interval during which the motion occurred
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velocity
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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 (speed and/or direction change)
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force
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a push or pull exerted on an object to change the motion of an object
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newton
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the SI unit for force (N)
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net force
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the combination of all forces acting on an object
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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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gravity
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a force of attraction betweeen objects due to their masses
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weight
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a measure of gravitational force exerted on an object; its value can change with its location in the universe
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mass
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a measure of the amount of matter in an object
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