Term
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Definition
| joule (J); newton x meter |
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Term
| What two components must exist in order to do work? |
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Definition
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Term
| If there is no displacement, is work actually being done? |
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Definition
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Term
| The result of work is the change of _____ of an object |
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Definition
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Term
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Definition
| work done by net external force = final kinetic energy - initial kinetic energy |
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Term
| SI unit of kinetic energy |
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Definition
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Term
| To what kind of work does the work-energy theorem not apply? |
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Definition
| work done by an individual force (unless that force is the only one present) |
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Term
| If the work done by the net force is _____, the kinetic energy of the object increases |
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Definition
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Term
| If the work done is _____, the kinetic energy decreases |
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Definition
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Term
| Can you use the same "work done by gravity" equation for any path taken between initial & final heights, not just for the straight-down path? |
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Definition
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Term
| Only the difference in _____ need to be considered when calculating the work done by gravity |
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Definition
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Term
| The greater the height "h", the greater is the gravitational _____ |
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Definition
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Term
| gravitational potential energy |
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Definition
| the quantity "m(g)(h)"; "PE"; the energy that an object of mass "m" has by virtue of its position relative to the surface of the earth; position is measured by height "h" of the object relative to an arbitrary zero level |
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Term
| The concept of potential energy is associated only with a type of force known as a _____ force |
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Definition
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Term
| SI unit of gravitational potential energy |
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Definition
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Term
| Is gravitational potential energy a scalar quantity or a vector quantity? |
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Definition
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