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6 Cards in this Set
- Front
- Back
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The motion of an object is determined by its what?
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By its change of postion relative to a reference point.
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Speed is the distance an object travels in one unit of time. If an object moves at a constant speed, how can its speed be determined?
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By dividing the distance it travels by the time taken. If an object's speed varies, then dividing distance by time gives you the object's average speed.
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When you state both the speed of an object and the direction in which it is moving, you are describing an object's...
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Velocity
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How do the plates that make up Earth's outer layer move?
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They move very slowly and only centimeters per year, in various directions.
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Acceleration is the rate at which velocity changes. It involves...
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Increasing speed, decreasing speed, or changing direction.
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How can acceleration be calculated?
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By dividing the change in velocity by the amount of time it took that change to occur.
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