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4
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a group of object used to measure position or motion.
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5
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acceleration refers to an increase in speed over time
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6
|
on which surface will the force of friction have the greastest effect.
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7
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will have the least effect on a piece of iron.
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8
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what force is between two object in motion and create heat.
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11
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a force that cause an object to change its motion is called.
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12
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which of the following device uses magnetism to create motion.
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14
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moving electrons generate charged forces.
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15
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a force can cause an object to do the following except.
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