๐Ÿงฒap physics 2 review

Quantum

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

In physics, quantum refers to discrete packets or bundles of energy. It is the fundamental unit of energy that can be gained or lost by an atom or subatomic particle.