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19 Cards in this Set
- Front
- Back
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A Push or pull exerted on an object |
force |
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A force caused by two surfaces pushing against each other |
Friction |
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a force that acts in the direction opposite to the velocity of an object moving in air |
air resistance |
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the net force acting on an object is zero. (equal and opposite forces) |
balanced forces |
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the speed of an object and the direction of its motion |
velocity |
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the sum of all forces acting on an object |
net force |
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change of the velocity of an object divided by the time for the change to occur |
acceleration |
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length of the path an object travels |
distance |
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the speed of an object at a given point in time |
instantaneous speed |
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two surfaces in contact prevented from sliding past each other |
static friction |
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the total distance an object travels per unit of time |
average speed |
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the distance an object travels per unit time |
speed |
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unequal forces pushing in opposite directions |
unbalanced forces |
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physical quantity that is specified by both a size and direction |
vector |
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an object that is neither speeding up nor slowing down travels at a |
constant speed |
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when an object is accelerating, its velocity is |
changing |
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any change in position |
motion |
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the distance and direction an object moves from its starting point to its final point |
displacement |
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the force that opposes the motion of an object moving on a surface |
sliding friction |
