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15 Cards in this Set
- Front
- Back
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Work |
when a force exerted on an object causes that object to move some distance; work =force x distance. |
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Potential energy |
stored energy in an object due to its position. |
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Kinetic energy |
energy an object has due to its motio |
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Current electricity |
electricity that flows through a circuit, or a continuous unbro-ken path; electrons flowing from one point to another |
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Resistance |
the measure of how difficult it is for electrons to flow through a materi-al;; measured in ohms (Ω) |
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Generator |
a devise that used a magnetic field to turn kinetic energy into electricalenergy and can produce direct current and alternating curren |
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Efficiency |
useful work per quantity of energy; efficiency = [output work ÷ inputwork] x 100 |
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Friction |
The force of two surfaces that to |
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Motion energy |
movement of objects and substances from one place to another. |
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Electrical energy |
the movement of electrical charges |
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Sound energy |
the movement of energy through substances in longitudinal waves |
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Radiant energy |
electromagnetic energy that travels in transverse waves. |
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Thermal energy |
the internal energy in a substance caused by friction due to the vi-bration of atoms and molecules |
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Chemical energy |
energy stored in the bonds of atoms and molecules |
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Nuclear energy |
energy stored in the nucleus of an atom |
