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14 Cards in this Set
- Front
- Back
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force |
push or pull
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newtons
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the strength of a force measured in the SI unit
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friction
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the force that two surfaces exert on each other when they rub on each other.
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static friction
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a friction that acts on objects that are not moving
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rolling friction
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when an object rolls across a surface
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sliding friction
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two solid surfaces slide over each other
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gravity
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a force that pulls objects toward each other
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weight
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the force of gravity on a person or object at the surface of a planet
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mass
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a measure of the amount of matter in an object
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inertia
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the tendency of an object to resist a change in motion
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momentum
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a characteristic of a moving object that is related to the mass and the velocity of the object.
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the law of conservation of momentum
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in the absence of outside forces,the total momentum of objects that interact does not change
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centripetal force
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any force that causes an object to move in a circular path
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satelite
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any object that orbits another object in space
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