Matter is anything which occupies space and has mass. There are three states of matter: 1.solid 2. Liquid 3. Gas Volume is an important quantity which is useful in the calculation of the density. Watch the Video https://youtu.be/hFiczFZqD28

1. Presented by Aakash Parmar
Volume and
Density

2. Table of Contents Problems on Scientific Notation
What is Matter
States of Matter
Volume
Measurement of Volume
Volume of a Liquid
Volume of Regular and Irregular Solid
Density
Measuring Density
Any Question
03
07
01
05
09
04
08
02
06
10
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3. Problem 1
Convert the mass of Sun 2 000 000 000 000 000 000 000
000 000 000 kg, into scientific Notation.
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Solution:
Since we are given mass of Sun =Msun= 2 000 000
000 000 000 000 000 000 000 000 kg.
Since according to above question, the decimal point will be
in the last. So,
It can be written into Scientific Notation as;
Msun= 2x10^30kg.
Since decimal point will move from Right to Left so power
will be Positive.

4. Problem 2
Convert the mass of an electron 9.11x10^-31 into standard
form.
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We are given Me= 9.11x10^-31 kg.
Now as we already read if decimal point move from left to
right, then power will be negativity.
So, shift the decimal point 31 places to the left.
So, Me=0.000 000 000 000 000 000 000 000 000 000911kg.

5. What is Matter?
• Anything, which occupies space and has mass is known as
Matter.
• There are three states of Matter:
⚬ Solid
⚬ Liquid
⚬ Gas
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Solid has definite size.
Solid has fixed shape.
Solid has fixed Volume.
Liquid does not has fixed shape.
It takes the shape of the container it is placed in.
Gas has no definite shape.
Gas has no definite Volume.
Gas Don't has definite size.

6. 4 States Of Matter
Solid Liquid Gas Plasma
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7. Measurement of
Volume
• In order to find density, we need to calculate
volume.
• Most of the solid geometrical shapes has
formulas to calculate volume, which are
obtained by certain parameters such as,
radius, height, width, base and length.
• But the volume of irregular shapes can not
be measured this way.
• Volume of liquids can be measured using
Cylinders and Beakers.
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8. Measurement of
Volume of Liquids
• The volume of the liquids is measured by
glass or a plastic cylinder.
• It has a scale which is graduated in cubic
centimeters or millimeters. as shown in
figure.
• When liquid is poured, it rises to cetain
heights in the cylinder.
• The level of the liquid in the cylinder is noted
and volume of the liquid is obtained.
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9. Measuring the
Volume of Regular
shape
If the solid has a regular shape its volume can be calculated
as;
• Volume of rectangular block= Length x Height x Width
• Volume of a cylilnder= pi^2 x Height.
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10. Measuring the
Volume of Irregular
shape
• The volume of irregular object can be calculated by
Subtracting the original Volume from the raised
volume.
• The total volume is found.
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11. What is Density?
The term Density can be defined as:
• Mass of subtance (m), per unit volume (V).
• It is denoted by Greek letter p (rho).
• Its Formula can be written as;
⚬ p=mass/volume
• Its unit is kg/m^3 or g/cm^3
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Density is the characteristic property of any substance.
Using above formula mass of any substance can also be
calculated as,
m= pV
There are two ways to calculate density.
Either mathematically or experimentally, by taking density of
water at 4C as reference (Specific Gravity) or relative density.
Relative density= Density of Substance/Density of Water

12. Problem 1
What is the mass of solid iron wrecking ball of 18cm. If the
densiy of iron is 7.8gm/cm^3.
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Solution:
We are given;
Density of iron ball = 7.8gm/cm^3= 7.8 x1000 m/m^3
Radius of iron ball r = 18cm =18x10^-2m
Volume= (4/3)xpixr^3
V= 1.33 x 3.142 x (0.18)^3
V= 0.024m^3
m= pV = (7.8x10^3)(0.024)
m= 187.2kg

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Thank You
Any Question?