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14 Cards in this Set
- Front
- Back
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a push or pull on an object |
force |
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the combination of all the forces acting on the object |
net force |
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cause the motion of objects to change |
unbalanced forces |
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the force that opposes the sliding motion of two surfaces that are in contact |
Friction |
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an attractive force between all objects that have mass |
Gravity |
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an object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force. |
Newton's 1 law of motion |
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The tendency of an object to resist a change in motion |
Inertia |
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the acceleration of an object depends on its mass and the net force exerted on it |
Newtons 2 law of motion |
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For every action, there is an equal and opposite reaction |
Newton's 3 law of motion |
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A force that opposes an object's motion through the air |
Air Resistance |
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When gravity is the only force acting on an object |
The object is in Free Fall |
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Objects appear to be what during free fall? |
Weightless |
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The force that causes an object to move in a circular path |
Centripetal Force |
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If objects exert forces only on each other, their total momentum is conserved |
The law of conservation of momentum |
