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12 Cards in this Set
- Front
- Back
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Motion
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Motion is an object´s change in position relative to a reference point. The Earth´s surface is used as a common reference point. A moving object can be used as a referance point as well.
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Speed
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Speed is the distance traveled by the time interval during which the motion occurred. Normally, objects do not travel at a constant speed. Speed is distance divided by time.
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Average Speed
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Average Speed is total distance over total time.
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Total Distance
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The sum of all distances traveled.
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Net Distance
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The difference or sum of the distance traveled. Also called displacement.
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Velocity
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Velocity is the speed of an object in a particular direction. Velocity appears to be very similar to speed, however, when describing the velocity of an object you need to provide a magnitude and direction.
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Magnitude
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Magnitude is the speed of an object.
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Direction
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Direction an object is going ( North, South, East, West, up, down, forward, back).
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Resultant Velocity
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An object can have a resultant velocity if it is experiencing more than one motion.
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Acceleration
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Acceleration is the rate at which velocity changes over time. An objects accelerates if its speed, direction, or both change. Average accelerarion is final velocity-starting velocity divided by the time it takes to change velocity.
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Change in Acceleration
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As velocity increases, so does acceleration. As velocity decreases, so does acceleration. When direction changes, so does acceleration.
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Constant Velocity
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Constant Velocity is when there is no change in acceleration in an object.
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