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16 Cards in this Set
- Front
- Back
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motion
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when an object changes position over time relative to a refrwence point
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speed
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is distance traveled by an object divided by the tim taken to travel
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velocity
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involvesspeed plus a direction
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acceleration
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is a changeis in an objects velocity
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force
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a push or pull exerted on an objects in order order to change the motion of the object force has size and direction
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newton
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the si unit for force
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net forces
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the combinatoin of all the forces acting on an object
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balanced forces
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no movement
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unbalanced forces
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cause movement
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friction
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a force that opposes motion between two surfaces that are in conact
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kinectic friction
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between moving surfaces
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static friction
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a force is applied but
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gravity
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a force or attraction between objects due to their masses
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newton
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law of universal gravition
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weight
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the gravitianiol force of an object
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mass
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the amount of matter in an object
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