Work and Energy Flashcards
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Vocabulary flashcards for work and energy concepts.
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9 Terms
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Work
A force that acts over a distance in the direction of motion.
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Joule (J)
The unit of measurement for work, kinetic energy, and potential energy.
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Work Formula
Force multiplied by distance (W=Fd).
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Positive Work
When positive work is done on an object, it gains potential energy, kinetic energy, or both.
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Non-Conservative Forces
Forces that remove potential or kinetic energy from a system of objects.
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Potential Energy (PE)
Energy due to an object's height above a reference point (PE = mgh).
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Kinetic Energy (KE)
Energy due to an object's motion (KE = 1/2 mv²).
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Work by Friction (Wf)
The work done by friction, which opposes motion (Wf = Ff d).
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