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20 Cards in this Set
- Front
- Back
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speed
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- the distance an object travels in a unit of time
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average speed
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- is found by dividing the total distance traveled by the total time taken
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velocity
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- the speed of the object and the direction of its motion
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acceleration
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- the change in velocity divided by the time it takes for the change to occur
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negative acceleration
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mass
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- the amount of matter in an object
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inertia
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- the tendency of an object to resist a change in its motion
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momentum
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- a measure of how hard it is to stop the object
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displacement
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- the direction and difference in position between your starting and ending points
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Law of conservation of Momentum
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- the total momentum of a group of objects remains constant unless outside forces act on the group
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Which unit of measure is used to measure distance?
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Which unit of measure is used to measure speed?
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Which unit of measure is used to measure Acceleration?
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Which unit of measure is used to measure Momentum?
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Which unit of measure is used to measure Mass?
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Momentum depends on ______________ and ______________.
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- mass
- velocity |
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Two km south is a measure of _______________.
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- displacement
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The hands of a clock have:
a) constant velocity b) constantly change speed c) are accelerating d) have no momentum |
- constant velocity
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An object's inertia depends on its ___________.
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- mass
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If an object moves at constant speed, can we assume that its not accelerating? Explain.
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- no, object could change direction
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