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## Class 9 Physics (India)

### Course: Class 9 Physics (India)>Unit 3

Lesson 7: Relative density

# Relative density (Specific gravity)

Let's explore what relative density is. Created by David SantoPietro and Mahesh Shenoy.

## Want to join the conversation?

• Can we use this concept for every fluid ? As in, can we take two liquids and then be able to predict whether a liquid will be able to float or not on another liquid and if it does then how much of it would be submerged ?(Can liquids even submerge inside each other without changing their original compositions ?)
• I don't understand most of what is going on. So what if the relative density ha been giving and we are supposed to look for the density, how do we go about that?
(1 vote)
• I guess that would depend on the unit of the density we are supposed to find out.

For Instance, If the Relative Density of Wood to Water is 0.7, and we have to find out the density in kg/m3

The Result would be 0.7 x 1000, Since we divided the density of wood by the density of water to get 0.7
Therefore, The density of wood would be( 0.7 x 1000)= 700!!
Taaa Daa.
😁