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| The sum of two or more forces- the overall force. |
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| The tendency of an object to resist change in its motion. |
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| An object moving at a constant velocity keeps moving at that velocity unless acted upon by an unbalanced force. |
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| Real-life example of Newton's First Law |
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| The use of seat belts to reduce injury. |
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The acceleration of an object is in the same direction as the net force on the object. |
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The force that opposes the sliding motion of two surfaces that are touching each other. |
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The force which must be overcome before an object can move. |
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| Results when two surfaces are moving past each other. Also called kinetic. |
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| A friction-like force which opposes falling objects. |
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The force of air resistance is equal to the force of gravity of a falling object. |
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| The attractive force between any two objects |
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| Depends on the distance apart and mass of two objects |
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| The gravitational force exerted on an object |
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| Newton's Third Law of Motion |
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| For every action, there is an equal but opposite reaction |
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| An example of Newton's Third Law |
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| An example of Newton's Second Law |
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It takes 50N of force to accelerate a 1000Kg car to .05m/s2 |
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A change in an object's position determined by using reference point |
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Causes an object to start moving, stop moving, or change directions. |
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| If mass increases, the force of gravity results in a _____. |
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| The table cloth trick works better if the objects have ___ |
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