Answer the following with reference to the International System of Units (SI).
PHYSICS · Multi-part · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
Answer the following with reference to the International System of Units (SI).
(i) Define the terms (a) physical quantity and (b) unit.
(ii) List the seven SI base quantities together with their corresponding units and symbols in a neat table.
(iii) Write the present formal SI definitions of the metre, kilogram and second.