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| The push or pull on an object |
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| the force that pulls all objects in the universe toward one another. |
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| the amount of matter in an object. |
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the force of gravity’s pull on an object. |
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| the force used to move something in the directions of the force. |
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| the force that resists motion when one surface moves over another. |
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| the ability to cause change |
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rate of change in speed or direction. |
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| any device that makes work easier or faster |
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the energy of a moving object.
(A roller coaster racing down a hill has kinetic energy.) |
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| the energy an object has because of its position. (Objects that can compress, bend, or stretch and then return to their original positions have elastic potential energy. A rubber band has elastic potential energy. An object that has the ability to fall has gravitational potential energy.) |
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| Would your mass be the same on Earth, the Moon, or floating in space? |
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| Newton's First Law of Motion |
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| An object at rest will remain at rest, and an object in motion will remain in motion unless acted upon by an unbalanced force. |
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| Newton's Second Law of Motion |
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| When an unbalanced force is applied to an object, the object accelerates, and the amount of acceleration depends on the mass of the object and the amount of force applied to it. |
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| Newton's Third Law of Motion |
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| For every force, there is an equal and opposite force. |
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