Work, energy, and power | AP®︎/College Physics 1 | Science | Khan Academy
Learn about kinetic and gravitational potential energy, understanding that a single object can only have kinetic energy, while potential energy is stored in a system of objects. Explore work as a means through which energy is transferred, and apply the principle of energy conservation to analyze changes in a system's energy. Express energy concepts using multiple representations, including bar charts, graphs, and equations. Define power as the rate of change of energy.
概览
收录于
2026年3月18日
学科与领域
physics · work-energy-power
年级范围
九年级（高一）–十二年级（高四）
页面类型
Course
简介
Work, Energy, and Power Overview
- Core Concepts:
- Kinetic Energy: Energy associated with a single object.
- Gravitational Potential Energy: Energy stored within a system of objects.
- Work: The mechanism through which energy is transferred.
- Energy Conservation: The principle used to analyze energy changes within a system.
- Power: Defined as the rate of change of energy.
- Learning Objectives:
- Understand the distinction between kinetic energy and potential energy.
- Apply energy conservation principles to physical systems.
- Represent energy concepts using bar charts, graphs, and mathematical equations.
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