Introduction

This unit focuses on how energy is transferred and transformed in physical systems. You’ll study how forces do work on objects, how energy is conserved, and how power quantifies the rate of energy transfer.

Work: The transfer of energy through the application of force over a distance.

Kinetic and Potential Energy: Mechanical energy due to motion or position.

Work–Energy Theorem: Net work done on an object equals its change in kinetic energy.

Conservation of Energy: In a closed system, total mechanical energy remains constant unless external work is done. Initial and final kinetic + potential energy sums are equal.

Power: Rate at which work is done or energy is transferred: P = W / Δt

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Summary of Key Equations

Other Resources

• Organic Chemistry Tutor — Intro Video
• Flipping Physics Exam Review
• Organic Chemistry Tutor — More In-Depth Review
• Walter Lewin Lecture on Work, Energy, and Power
• Physics Review (Concise)
• Work, Energy, and Power — Practice Problems
• Practice Test 1
• Practice Test Workbook (Advanced)
• Practice Test 3 (Easier)