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Hi Viewers:

Today we discuss about the volume of a substance.  This is a physical quantity it takes the derived units.
It is very important for a person to know what is volume, because in our day to day life we often come across with this term.  So it is very important to know How to measure a Volume of a substance.

Volume

What is volume?

The space occupied by a substance (solid, liquid and gas).

 

Units of Volume

In CGS system, it is cc

In FPS system, it is cft

In MKS system, it is cubic metre

 

What is cc?

cc means cubic centimeter

If a length, breadth and height of a cube is 1 cm each, then the volume of the cube is taken as the unit of volume in CGS system.  It is called one cubic centimeter or 1 cc or 1 cm3.

 

Similarly, If a length, breadth and height of a cube is 1 foot each, then the volume of the cube is taken as the unit of volume in FPS system.  It is called one cubic foot or 1 cft or 1 ft3.

 

Litre

In CGS system litre is also used as a unit of volume especially in the liquids.  It is the volume of 1 kg of pure water at 4 °C.

 

Gallon

In FPS system, gallon is used as a unit to express volumes, especially of liquids.  It is the volume of 10 lbs of pure water at 62°F

 

Conversions

1 gallon  =  4.54 L

1 L  =  .2204 gallon

1 ml  =  1 cc

1L   =    1000 ml

1 m3  =  1000 L

 

 

Volume of regular solid

Volume of a cube  =  side3

Volume of a cuboid  =  Length x Breadth x Height

Volume of sphere  =  4/3 π radius3

Volume of cylinder  =  π r2 height

 

Experiment 1  (Note:  All experiments should be written in passive voice and past tense)

 

Objective:  To measure the volume of an irregular solid that does not dissolve in water

Materials required:  An irregular solid that does not dissolve in water, water, measuring cylinder and a thread

Procedure

Suitable quantity of water was poured in a measuring cylinder, which was enough to immerse the solid completely in it.

The reading of the water level was noted as R1

The solid object was tied to a thread and was immersed into the water.

The level of water was raised was observed

The reading of the new water level was noted as R2

The volume of the solid was R2 – R1

 

Experiment 2  (Note:  All experiments should be written in passive voice and past tense)

Objective:  To measure the volume of an irregular solid that dissolves in water

Materials required:  An irregular solid that dissolves in water Copper sulphate, Kerosene oil, measuring cylinder and a thread

Procedure

Suitable quantity of kerosene was poured in a measuring cylinder, which was enough to immerse the solid completely in it.

The reading of the kerosene level was noted as R1

The solid object was tied to a thread and was immersed into the kerosene

The level of kerosene was raised was observed

The reading of the new kerosene level was noted as R2

The volume of the solid was R2 – R1

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See you in my next blog post.

PpG

 

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Hi viewers My name is Partha Pratim Goswami, (PpG) I am a teacher by profession. I have been teaching biology, chemistry and physics, sometimes mathematics also for last sixteen years. I would like to share my entire experience with all the viewers across the world through YouTube, which I think is an amazing platform to share all my experiences.

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