Concept Library
Reusable physics concept entries.
Browse by physics domain, then filter by curriculum scope or search for an exact concept. Each entry links definitions, representations, formulas, units, and misconceptions.
2 concepts in Physics Tools
Knowledge cluster
Physics Tools
IB Physics / AP Physics 1 / AP Physics C MechanicsIB Physics / AP Physics 1 / AP Physics C Mechanics
Scalar
A scalar is a physical quantity that is fully described by magnitude and unit, without direction.
Vector
A vector is a physical quantity that requires both magnitude and direction for a complete description.