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15 Cards in this Set
- Front
- Back
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inertia
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a body in motion tends to remain in motion; a body at rest tends to remain at rest; unless acted on by an outside force
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position
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a specific point in space
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distance
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the length between two positions
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direction
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a course on which something is moving
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vector quantity
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a quantity consisting of both a magnitude and directino
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magnitude
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tells how much of the quantity there is
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velocity
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measures how quickly your position changes
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speed
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the distance you travel in a certain amount of time
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Newton's 1st Law of Motion
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an object that is not subject to any outside forces moves at a constant velocity, covering equal distances in equal times along a straight-line path
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forces
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pushes and pulls
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mass
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the measure of your inertia, your resistance to changes in velocity
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acceleration
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measures how quickly your velocity changes
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Newton's 2nd Law of Motion
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the force exerted on an object is equal to the product of that objects mass times its acceleration
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inertial frame of reference
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a frame of reference that is not accelerating
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inertial
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moving because of inertia alone and not accelerating
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