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35 Cards in this Set
- Front
- Back
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Force= |
mass x acceleration |
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Potential energy
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Energy of position
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Energy |
the ability to do work. |
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In order to do work, ______ _______ ________!
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SOMETHING MUST MOVE!
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Power
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The rate at which work is done. |
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Work
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Applied energy; energy caused by forces.
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Mechanical Energy?
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energy created by the physical movement of rotation, revolution, ect. of an object.
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Law of Conservation of Energy
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Energy cannot be created or destroyed, only transferred and converted
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Work
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when a force acts on an object and the object moves in the direction of the force
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Power
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The rate at which work is done. |
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Watt
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The unit of power. (Joule/second)
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Potential energy
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Energy that is stored and held in readiness. ex: elastic, chemical, gravitational
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Kinetic energy
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The energy of motion.
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Work energy theorem
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States that whenever work is done, energy changes. |
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Force unit
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Newton
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Work unit
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Joule |
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Force x distance
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Work
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Work / time
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Power
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number of supporting ropes
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the mechanical advantage of a pulley
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simple machine
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a device with which you can do work in a way that is easier or more effective.
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effort force
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force you exert on the machine
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resistance force
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force exerted by the machine
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wave
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a disturbance that travels through a medium from one location to another
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equilibrium
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The natural position of a wave
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pulse
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A disturbance that moves through a wave
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energy
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What is actually transferred through a wave
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interference
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When two waves meet while traveling along the same medium
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What is "A"? |
Amplitude
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What is "B"?
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Wavelength
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What is "C"?
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Trough
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What is "D"?
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Crest
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The unit of weight
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Newtons
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The tendency of an object to resist change
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inertia
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mass in motion
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momentum
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the unit for momentum
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kg m/s
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