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ap physics 1

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study guide

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Unit 4

4.0 Unit 4 Overview: Energy

#conservation

#conservationofenergy

#forceinteractions

#potentialenergy


written by

Peter Apps

peter apps

published on april 13, 2020

Last updated on June 8, 2020

Unit 4 introduces the concept of energy as an alternative method of solving some of the problems encountered in Units 1-3. The skills learned in this unit will become essential tools in dealing with some of the more advanced concepts in the later units. These topics will account for up to a quarter (~16-24%) of the AP exam questions and will take approximately 19-22 45 minute class periods to cover. This is a foundational unit to the course, and itโ€™s vital you can understand and apply the concepts.

Applicable Big Ideas

  • Big Idea #3: Force Interactions - How does pushing something give it energy?

  • Big Idea #4: Change - How is energy exchanged and transformed within or between systems? How does the choice of system influence how energy is stored or how work is done?

  • Big Idea #5: Conservation - How is energy transferred between objects or systems? How does the law of conservation of energy govern the interactions between objects and systems?

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Image courtesy of Giphy.

Key Concepts ๐Ÿ”‘

  • Systems

  • Work (W)

  • Power (P)

  • Gravitational Potential Energy (Ug)

  • Elastic Potential Energy (Usp)

  • Kinetic Energy (K)

  • Conservation of Energy

Key Equations ๐Ÿ—

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๐ŸŽฅWatch: AP Physics 1 - Unit 4 Streams

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