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17 Cards in this Set
- Front
- Back
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kinematics
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the study of motion without regaurd to what causes the motion
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Distance
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change in position--how far an object has moved
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speed
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the rate of change of position
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velocity
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the rate of change of displacement(speed in a given direction)
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instantaneous speed/velocity
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the speed of an object at a given time
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average speed/velocity
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the ration of the change in position to the time interval during which the change occured
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acceleration
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the rate of change of velocity
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motion diagram
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series of pictures showing the position of an object at equal time intervals
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particle model of motion
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study of the motion of an object by considering it to be a point instead of a collection of individual paths
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free fall
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the motion of a body when air resistence is negligible and the action can be considered due to gravity
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scalar
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a quantity which has magnitude (amount) only
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vector
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a quantity that includes both magnitude (amount) and direction
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examples of scalar quantities
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time, temp., mass, speed, distance, volume, area
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examples of vector quantities
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force, acceleration, displacement, velocity, weight
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displacement
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distance moved in a certain direction
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what does the slope of a distance (position) vs. time graph represent?
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velocity
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what does the slope of a velocity vs. time graph represent?
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acceleration
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