phys_WORK & ENERGY
ditto
| created: | 6 months ago by studygrace7 | tags: | physics final 2008 |
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work |
the transfer of energy |
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energy |
the ability or capacity to do work |
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kinetic energy |
energy of motion |
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work-energy principle |
net work done on object = change in kinetic energy |
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potential energy |
energy of position |
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gravitational potential energy |
energy stored b/c of height |
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elastic potential energy |
energy stored because of springs, ropes, etc. |
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restoring force |
Hooke's law; SHM; force to bring back to equilibrium which is proportional to displacement |
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conservative forces |
forces in which work done is independent upon the path the object took (i.e. gravity) |
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nonconservative forces |
forces in which work done depends upon path of object (i.e. friction) |
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principle of the conservation of mechanical energy |
if only conservative forces act, the total mechanical energy of a system is preserved |
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power |
rate at which work is done |
