Measuring Physical Properties: Calculating Volume

Measuring Physical Properties:

Calculating Volume

Volume

Volume is defined as the amount of space an object takes up. 

Because matter can be solid, liquid or gas, we can measure volume using different methods.

Multiple Choice

Volume is the amount of space an object takes up.

• True
• False

Multiple Choice

The amount of space an object takes up is called

• mass

• volume

• weight

Liquid

We use a graduated measuring cylinder and read the correct number and unit (ml or L)

Multiple Choice

What is measured with a graduated cylinder?

• time

• distance

• weight

• liquid volume

Multiple Choice

What is the correct value?

• 5 ml
• 15 ml
• 20 ml
• 25 ml

Multiple Choice

What tool can be used to measure volume?

Regular Solid Objects

To measure regular objects we can use this formula:

Volume = length x width x height

Volume of Orange cube --->

6c m X 4 cm X 6 cm = 168 cm³.

Multiple Choice

What is the formula for finding volume of a box?

• v = l + w + h

• v = l x w x h

• v = l x h

Multiple Choice

What is the volume of the regular solid in this diagram?

• 24 cm³
• 20 cm³
• 30 cm³
• 26 cm³

Multiple Choice

What is the volume of the pink cube? Remember to use the correct units.

• 125 cm³

• 25 cm³

• 125 g

What about Irregular shapes? ---->

This rock is irregular, we can't use the equation!

So, how can we find the volume?

We use the Displacement method

Irregular solid object

Some solid objects have irregular shapes that make it difficult to measure their dimensions with a ruler.

To find the volume of these objects, you can use the displacement method.

Volume of the solid =  final volume - initial volume

  V = 26 mL - 20 mL

V = 6 mL

Multiple Choice

What is the volume displacement of the fish?

• 3

• 4

• 5

• 6

Multiple Choice

What is the volume displacement of the hammer?

• 3

• 4

• 5

• 6

Multiple Choice

How much water has been displaced in the image shown?

• 80 mL
• 100 mL
• 20 mL
• 60 mL

Multiple Choice

How much water has been displaced in the image shown?

• 40 mL
• 65 mL
• 20 mL
• 25 mL