Rotational Energy
Reference from the original Physics I textbook.
- Rotational Energy
Also referred to as angular kinetic energy. Similar to energy of an object moving translationally, but now it’s rotating.
- Related Glossary Terms
- Index
Glossary and deeper reading · 1 refreshers
These editorial refreshers supplement the reading. Definitions and examples are added guidance; original source wording and recorded answers remain in their original context.
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Rotational kinetic energy
Rotational kinetic energy is the kinetic energy associated with rotation about an axis. For a rigid body about a fixed axis it is one half of rotational inertia times angular speed squared. For example, a rolling wheel can possess both translational kinetic energy of its center of mass and rotational kinetic energy about that center.