Question

3. A substance with a relative density of less
than 1 is lighter than water.​

Answer 1

Explanation:

its value is less than 1, then the substance is less dense than water and would float. If relative density is exactly 1, the density is the same as water. If RD is greater than 1, the density is greater than that of water and the substance would sink.

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Answer 2

If a value of a substance is less than 1 , then it is less dense than water and it would float.

If relative density is exactly 1 , the density is same as water.

If RD is greater than 1 , the density is greater than that of water and the substance would sink.

Activity Example :

Let's take,

The reference material as water, then a substance with a relative density , less than 1 will float in water.

Example :

An ice cube, with a relative density of about 0.91, will float.

A substance with a relative density greater than 1 will sink.

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