Energy Systems Clarified

A demonstration of a block-spring system on an incline is used to show the relationships between work and energy, and how they depended on what is defined as the system.
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This is an AP Physics 1 and AP Physics C: Mechanics topic.

Previous Video: Energy Transferred Into and Out of a System
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Content Times:
0:00 The demonstration
1:39 Free Body Diagram and Work
2:37 General Energy Transfer Equation
3:17 System #1: Block
5:53 System #2: Block, Earth
7:16 System #3: Block, Earth, Spring
9:17 System #4: Block, Earth, Spring, Incline

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