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| A force that opposes the motion of objects that are falling through the air. (air friction) |
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| A space where there is no matter. Outer space is an example of this. |
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| the tendency of an object to stay at rest or in motion (objects just want to keep on doing whatever it is doing) |
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Newton's 1st Law of Motion |
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| an object at rest will remain at rest, an object in motion will remain in motion UNLESS acted on by an UNBALANCED force. |
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Newton's 2nd Law of Motion |
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The acceleration of an object depends on the mass of the object and the amount of force applied.
F = m x a |
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F= ma
(Force= mass x acceleration) |
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Newton's 3rd Law of Motion |
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For every action there is an equal and opposite reaction. Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. Forces always work in pairs.
Example-a rocket shipping blasting off. The gases push down and the rocket pushes up. |
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Definition
All forces act in pairs. When a force is exerted, there is always a reaction force.
Example-Hitting a baseball bat, the bat exerts a force on the ball and sends the ball flying. |
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A property of all moving objects. Momentum is determined by two factors: mass and velocity
Momentum = mass x velocity |
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Law of Conservation of Momentum |
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| Momentum can be transferred but cannot be lost within a system. When one moving object collides with another moving object, the motion of both objects changes. |
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| The transfer of energy to an object using a force that causes the object to move in the direction of the force. |
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| A device that helps do work by either overcoming a force or changing the direction of the applied force. |
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