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14 Cards in this Set
- Front
- Back
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frame of reference |
a system of objects that are not moving with respect to one another
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relative motion
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movement in relation to a frame of reference
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distance
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the length of a path between two points
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vector
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a quantity that has magnitude and direction
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resultant vector
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the sum of two or more vectors
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speed
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the ratio of the distance an object moves to the amount of time the object moves
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average speed
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the total distance traveled divided by the time it takes to make the trip
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instantaneous speed
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the rate at which an object is moving at a given point in time
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velocity
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a vector that describes both speed and direction
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acceleration
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the rate at which velocity changes
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free fall
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the movement of an object toward Earth solely because of gravity
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constant acceleration
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a steady change in velocity
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linear graph
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a graph in which displayed data form a straight line
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nonlinear graph
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a curve connects the data points that are plotted on this graph
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