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9 Cards in this Set
- Front
- Back
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FORCE |
a push or pull -units: Newtons(N) |
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FORCES can cause objects to: |
-move -not move -change speed -change direction |
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FRICTION |
Any force that opposes the motion of an object. |
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NET FORCE |
the combined total of all forces acting on an object. |
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NEWTON'S 1st LAW of MOTION |
-An object at rest will stay at rest unless acted on by an unbalanced force
-An object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. |
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NEWTON'S 2nd LAW of MOTION |
-Acceleration is produced when a force acts on a mass.
-The greater the mass of an object, the greater the amount of force needed to accelerate the object. |
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MASS |
the amount of matter in an object |
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WEIGHT |
the force of gravity acting on a mass |
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NEWTON'S 3rd LAW of MOTION |
For every action there is an equal and opposite re-action. |
