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Definition
| energy cannot be created or destroyed |
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| rate of change of velocity; speeding up or slowing down; a=(v2-v1)/t |
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Definition
| forces always act in equal but opposite pairs; for every action, there is an equal but opposite reaction |
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| Gravitational potential energy: |
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Definition
| the energy an object could change to kinetic energy if it falls; GPE=(force of gravity)(height)=mgh; g=9.8m/s2 |
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Definition
| stored energy of condition or postion |
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Term
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Definition
| motion from different reference points |
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Definition
| a unit of measurement; N=1kg x m/s2 |
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Term
| Newton's 2nd Law of motion: |
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Definition
| an object acted upon by a net force will accelerate in the direction of the force according to a=net force/mass; a=f/m; F=ma |
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Term
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Definition
| rate of change of postion (rate) s=d/t |
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Definition
| rate of change of displacement; includes both speed and direction; v=displacement/time; v=d/t |
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Definition
| the product of mass and velocity; p=mv; momentum=massxvelocity |
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Term
| Law of conservation of Momentum: |
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Definition
| if no outside force acts on a collection of objects, the momentum of the group will not change |
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Definition
| the ability to cause change |
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Definition
| the speed a falling object reaches when the force of gravity is balanced by force of air resistance |
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Definition
| an object will remain at rest or move with constant velocity until acted upon by a net force. Sometimes called "Newton's Law of Inertia". |
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Term
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Definition
| the energy of matter in motion; KE=1/2 mv2=1/2(mass)(velocity) |
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