9702/12 Physics Oct Nov 2023 Online Test | Cambridge AS & A Level Grade MCQ
Chapter 8: Electric current
Chapter 9: Kirchhoff’s laws
Chapter 10: Resistance and resistivity
Chapter 11: Practical circuits
Chapter 12: Waves
Chapter 13: Superposition of waves
Chapter 14: Stationary waves
Chapter 15: Atomic structure

A student finds the density of a liquid by measuring its mass and its volume. The following is a summary of his measurements.
mass of empty beaker = (20 ± 1) g
mass of beaker + liquid = (70 ± 1) g
volume of liquid = $(10.0 \pm 0.6)c{m^3}$
He correctly calculates the density of the liquid as $5.0gc{m^{ - 3}}$.
What is the uncertainty in this value?