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11 Cards in this Set
- Front
- Back
Motion
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An objects change in position relative to a reference point
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Speed
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The distance traveled divided by the time interval during which the motion occurred
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Velocity
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The speed of an object in a particular direction
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Acceleration
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The rate at which velocity changes over time; an object accelerates if its speed, direction, or both change
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Force
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A push or a pull exerted on an object in 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 (symbol,N)
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Net Force
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The combination of all of the forces acting on an object
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Friction
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A force that opposes motion between two surfaces that are in contact
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Gravity
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A force of attraction between objects that is due to their masses
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Weight
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A measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe
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Mass
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A measure of the amount of matter in an object
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