A container is full of glycerin. The total mass of the container of glycerin is 6.4 kg6.4\text{ kg}6.4 kg and the gravitational field strength is 10 N/kg10\text{ N/kg}10 N/kg.
Calculate the total weight of the container of glycerin.
The container of glycerin is hung from a spring of unstretched length 15 cm15\text{ cm}15 cm. The limit of proportionality of the spring is not exceeded and its length increases to 31 cm31\text{ cm}31 cm.
(i) State what is meant by the limit of proportionality.
(ii) The glycerin is poured into a measuring tank. The empty container stretches the spring to a length of 19 cm19\text{ cm}19 cm.
Calculate:
(iii) The volume of the glycerin in the measuring tank is 0.004 m30.004\text{ m}^30.004 m3. Calculate the density of the glycerin.
Explain, in terms of their molecules, why the density of the glycerin is greater than that of oxygen gas.
183 exam-style questions on CIE IGCSE Physics 1.5.1a Forces, resultant force and motion. Each one has a worked solution and a mark scheme showing where the marks go.