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12 Cards in this Set
- Front
- Back
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Explain Newton's third law of motion. |
For every action, there is an equal and opposite reaction. |
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What is a force pair? |
For every action force there is an equal (in size) and opposite (in direction) reaction force. Forces always come in pairs - known as "action-reaction force pairs. |
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What is momentum? |
the quantity of motion of a moving body, measured as a product of its mass and velocity. |
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What can increase the momentum of an object? |
mass |
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What is the momentum of a 1.5 kg ball rolling at 3.0 m/s? |
2 m/s2 |
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What is the law of conservation of momentum? |
For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. |
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How does Newton's third law of motion relate to the law of conservation of momentum? |
There is a equal reaction in both |
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What is Newton's Second Law of Motion? |
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. |
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What is the net force? |
In physics, net force is the overall force acting on an object. |
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hat is the difference between balanced forces and unbalanced forces? Which ones cause NO change in motion and which ones cause a change in motion? |
Balance causes no change in motion |
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What is Newton's First Law of Motion? |
often stated as. An object at rest stays at rest and 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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Why do objects stop moving? |
If a unbalanced force stops it |
