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20 Cards in this Set
- Front
- Back
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What are the SI units for acceleration? |
m/s2 |
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What is a measure of how hard it is to stop a moving object? |
momentum |
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The reason an object can transfer energy to another, after a collision, is because of the conservation of __________. |
momentum |
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A golf club hitting a ball is an example of an ______ elastic collision. |
elastic |
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During a(n) ___________ collision, objects bounce off of each other. |
elastic |
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_______________ is distance divided by time. |
speed |
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Movement occurs when an object moves relative to a _____________. |
reference point |
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An object that has the same speed but changes direction is _____________. |
accelerating |
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When something slows, its acceleration is _________. |
negative |
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When a car goes around a curve at 20 mph, the ________ changes. |
velocity |
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To find acceleration, first subtract __________ then divide by time. |
initial speed from final speed |
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At the beginning of a track race, the instantaneous speed of all the runners is ___________. |
0m/s |
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When you graph speed, time is on the __________. |
x-axis |
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In an inelastic collision between a moving object and a stationary object, the final velocity of both objects is _______________. |
less than the original velocity of the moving object |
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What is the tendency for an object to resist change in its motion? |
inertia |
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Something is in motion if it _______________. |
changes position |
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The ________ measures the speed during an entire trip. |
average speed |
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When something accelerates then stops accelerating, what happens to the object? |
continues to move at a constant velocity |
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The mathematical equation for momentum is _____________. |
momentum= mass x velocity |
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When a negative acceleration is graphed, the line ___________. |
slopes downward |
