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Work, Energy & Power
Vocabulary terms
Question | Answer |
---|---|
work | the transfer of energy |
power | the rate at which work is done |
energy | the ability to do work |
conservation of energy | law stating that energy cannot be created or distroyed |
mechanical energy | human scale energy |
non-mechanical energy | atomic scale energy |
thermal | energy of moving atoms |
chemical | energy of breaking bonds |
kinetic | energy of motion |
potential | energy based on position (stored) |
light | transverse waves (no medium needed) |
sound | longitudinal (medium needed) |
electric | moving electrons |
nuclear | energy of the nucleus |
fission | splitting the nucleus |
fusion | combining nuclei |
elastic | stretched or compressed |
gravitational | height dependent |
Joule | Unit of work or energy |
Watt | Unit of Power |
Newton | Unit of Force |
F x d | equation for work |
w / t | equation for power |
J | Symbol for Joule |
W | Symbol for watt |
meters (m) | unit for distance (d) |
seconds (s) | unit for time (t) |