Question

the volume of 50 gram of a substance is 20 centimetres cube if the density of water is 1 gram centimetre - cube will the substance float or sink?

Answer 1

first of all find density of substance

density = mass /volume
=50g/20 cm³
=2.5 g/cm³

here we see ,
density of substance > density of water
so, according to Archemedies law ,

if density of any body or substance greater then density of liquid in which we put this , then body or substances sink in liquid .

so , substance will be sink !!!!!

Answer 2

Hi there !!!

Here we are given the mass of the substance as 50 grams

Volume is also given as 20 cm³

Density of water = 1 g/cm³

We know that ,

Density = Mass ÷ Volume
= 50 ÷20
= 2.5 g/cm³

For an object to float , its density must be less than the density of water.

For an object to sink , its density must be more than the density of water.

Here in this case ,

The density of the substance is more than the density of water.

2.5 g/cm³ > 1 g/cm³

Hence , the object will sink