Volume Video Lecture | Year 8 Mathematics (Cambridge)

1. What is the formula to calculate volume?$#
Ans. The formula to calculate volume depends on the shape of the object. For a cube or rectangular prism, the formula is V = l x w x h, where l is the length, w is the width, and h is the height.

2. How is volume different from surface area?$#
Ans. Volume measures the amount of space an object occupies, while surface area measures the total area of all the surfaces of an object. Volume is in cubic units, while surface area is in square units.

3. Can the volume of a shape change if its dimensions change?$#
Ans. Yes, the volume of a shape changes if its dimensions change. If the dimensions are increased, the volume will increase, and if the dimensions are decreased, the volume will decrease.

4. How can you find the volume of a cylinder?$#
Ans. To find the volume of a cylinder, you can use the formula V = πr^2h, where r is the radius of the base and h is the height of the cylinder.

5. Is volume an important concept in real-life applications?$#
Ans. Yes, volume is an important concept in real-life applications. It is used in fields such as architecture, engineering, and physics to determine the capacity of containers, design buildings, and calculate the amount of materials needed for a project.