Four solid blocks have identical external dimensions but are made of different materials
CHEMISTRY · Multi-part · ISC · Chemistry · Some Basic Concepts of Chemistry · Dimensional analysis
Problem
Four solid blocks have identical external dimensions but are made of different materials. Their masses are: Block P (wood) – 750 g, Block Q (plastic) – 400 g, Block R (aluminium) – 2.7 kg, and Block S (iron) – 6.2 kg.
(i) Arrange the four blocks in ascending order of their inertia.
(ii) Give a reason for your arrangement with reference to the physical property that determines inertia.
(iii) State Newton’s First Law of Motion and explain how it supports the order you have given.