Question

A solid object of mass 50g and volume 100 cm-³ is put in water. will the object float or sink? give reason for your answer in more than 40 words.

Answer 1

Given ;
mass = 50g
volume = 100cm^3
Density = mass/volume
= 50/100
= 0.5 g/cm^3

Relative density = density of substance/density of water
= 0.5/1
= 0.5
;______________________
As the relative density of a solid is less than one hence the solid will float on the surface of water. This is because the solid has less density than that of water, so due to less density it will come upon the surface and will start to float.

Answer 2

Mass of the object = 50g
Volume = 100cm^3

Density = Mass/Volume
= 50/100 = 0.5g/ cm^3

Relative density of water = 1
Relative density of the object =
Density of the object/Relative density of water
= 0.5/1 = 0.5
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1 > 0.5
The object will float as the relative density of the object is less than water