Work & Energy

Energy is the currency of the universe. This section covers the principles of work, mechanical energy, and power, providing the framework to analyze how systems change through interactions without always needing to track every individual force.

A person throwing a blue bowling ball down a lane toward pins.
When you throw a bowling ball, you give it energy. This is called kinetic energy, or the energy of motion. The ball uses this energy to travel down the lane and knock over the pins.

Core Concepts

Understand the fundamental definitions of work, the various forms of potential and kinetic energy, and the Law of Conservation of Energy. Click on a concept to learn more.

Essential Skills

Master the step-by-step methods for calculating work done by constant and varying forces, solving conservation of energy problems, and determining power output.

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Practice Problems

Apply your understanding of work-energy theorems and conservation laws to various physical scenarios and challenges.

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