PHY C4: Principle of Conservation of Energy

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6 Terms

1
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What is the Principle of Conservation of Energy? (Definition)

Energy cannot be created or destroyed. It can only be transferred or transformed from one form to another.

2
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How does the Principle of Conservation of Energy apply to an Isolated System?

Total energy remains constant, as it exchanges no matter or energy with surroundings and no net work is done on it.

3
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What is the energy equation for an Isolated System?

Einitial = Efinal.

4
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What is the energy equation for a non-isolated Closed System?

Einitial + W = Efinal, where W is work done by an external force.

5
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What does positive work done (W) mean in the energy equation?

Energy is transferring into the system.

6
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What does negative work done (W) mean in the energy equation?

Energy is transferring out of the system.