Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Mass-energy equivalence is the concept that mass and energy are interchangeable, as described by Einstein's famous equation E=mcยฒ. It states that a small amount of mass can be converted into a large amount of energy, and vice versa.