Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Physical units are standard quantities used to express and measure physical quantities such as length, mass, time, etc.
Related terms
SI Units (International System): An international system of physical units based on metric measurements including meter for length, kilogram for mass, second for time etc.
Metric System: A decimal-based system of measurement that is universally used in science due its ease of use and conversions.
Measurement Error: The difference between a measured value and its true value.