Lesson exercise 1. A stone has a mass of 200 grams. When it is immersed in a measuring cylinde
of water, the water rises 100 ml. What is the density of the stone?
2. A 48 g metal bar was placed in water. The initial volume of water was 89ml. the
final volume was 86ml. What is the volume and density of the metal bar?
3. A rectangular wooden block measures 10cm x 4cm x 5cm. Given the density of
the block is 8.9g/cm'
, determine the mass of the block.
4. When a vessel of mass 50g is filled with water, the total mass is 126g. When the
vessel is filled with liquid L. The total mass is 110g.
a. Determine the relative density of the liquid L.
b. Calculate the total mass of the vessel when filled with equal volume of water
and liquid L
5. Two cubes of the same size were measured. Both cubes had the same volume
(size). Cube A was 52 grams and cube B was 130 grams. Which cube has the
highest density?
6. The ship does not sink in the sea and a small needle sinks in the sea. Explain
giving your reasons.