Lesson 6, Topic 4
In Progress

# Density

Lesson Progress
0% Complete

### Topic Content:

• Definition of Density
• Density of Different materials
• Determination of Density of a Solid (Regular and Irregular Objects)
• Relative Density
• Worked Examples

### What is Density?

Density of a substance is the ratio of mass to a volume of a substance.

OR

Density is mass per unit volume of a substance.

Density is represented by the Greek symbol rho, $$\scriptsize \rho$$

⇒ $$\scriptsize Density, \: \rho = \normalsize \frac {mass}{volume}$$

= $$\frac {kilogramme}{m^3} \\ = \scriptsize kgm^{-3}$$

Its unit is kgm-3.

Different materials have different densities as shown;

### Determination of Density of a Solid:

(i) Regular Shaped Object: The mass of a regular object is measured with a chemical balance or beam balance and its volume measured by metre rule, vernier calliper or micrometre screw gauge, depending on the shape of the body.

The density is then calculated by applying the formula:

You are viewing an excerpt of this Topic. Subscribe Now to get Full Access to ALL this Subject's Topics and Quizzes for this Term!

Click on the button "Subscribe Now" below for Full Access!

### Subscribe Now

Note: If you have Already Subscribed and you are seeing this message, it means you are logged out. Please Log In using the Login Button Below to Carry on Studying!