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14 Cards in this Set
- Front
- Back
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gravity
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force of attention due to masses
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earths gravitational
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force pulls everything. towards the center
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the force increases
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as mass increases
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distance increases
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as force decreases
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weight
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measure of gravity force
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gravity is measured with
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a spring scale
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mass
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amount of matter
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weight and mass are
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related but not the same
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maas can not change.but
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weight can change
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objects acccelerate
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at a speed of 9.8m
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air resistance
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a type of friction
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air resistance depends on
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the size and shape
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constant velocity is called
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terminal velocity
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free fall can only occur
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where there is no air
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