Volume And Capacity
Chapter Name : Mensuration |
Sub Topic Code : 104_08_11_08_01 |
Topic Name : Volume And Capacity |
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Sub Topic Name : Volume And Capacity |
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Introduction
There is a slight difference in the usage of the words- Volume and capacity
Pre-Requisites:
About different solids- namely Cube, cuboid & Cylinder and the importance of volume
Activity:
Whenever you are referring to a solid object like a construction brick, it’s volume is referred to in terms of cubic mts. Whereas, when you are bringing the water to a construction site, you say it to be in liters, which is the capacity.
Real Life Question:
If that container can hold 35 lts. Of water, is that the volume or capacity of the container?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Volume | Amount of space occupied by an object |
| Capacity | Quantity that a container can hold |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Cylindrical flask | Measure the radius of the base & height of the cylinder. This would be the volume Now, fill it with water using a measuring jar. Calculate how many liters/ml of water was filled. This is its capacity |
Real life uses :
It is important to know the difference because in most cases of containers, the capacity will be less than the volume of the container
Places to visit :
Construction site, Temples, Super Markets
Practical examples around us
| Examples | Explainations |
|---|---|
| Milk packet | Look at the back of a milk packet. It will be written as 500 ml or 1 liter. That is the capacity |
| Large cylindrical containers | Large cylindrical containers which are used in many houses for storing water, when sold in the market will also be sold in terms of their capacity even though they are bought empty & do not contain anything at that moment. |
What you learn in Theory:
Volume and capacity have a small, marginal difference
What you learn in Practice:
Reference to capacity and volume are made differently in different situations and perspectives