Volume of Rectangular Prisms Flashcards
What is the formula for finding volume of a rectangular prism?
length x width x height
What needs to be the same about the length, width and height when finding volume?
You need to make sure all three dimensions are measured with the same unit. Eg. cm
What shape are the units used to measure volume?
cubic units
Name four examples of units used to measure volume of solids?
cubic centimetres
cubic decimetres
cubic metres
cubic kilometres
If you are measuring the volume of a chocolate bar, which unit would you likely use?
cubic centimetres
If you are measuring the volume of a large suitcase, which unit would you likely use?
cubic decimetres
If you are measuring the volume of a backyard swimming pool, which unit would you likely use?
cubic metres
If you are measuring the volume of the earth, which unit would you likely use?
cubic kilometres
Why would you not likely choose cubic centimetres to measure the volume of the earth?
It would take way too many because they are so small.
Name two examples of units that we would use to measure volume of a liquid?
millilitres
litres
What is one ml (millilitre) equal to?
1 cubic centimetre
When you use the volume formula (l x w x h), what are you finding out when you multiply the length times the width?
Why do we then multiply by the height?
The number of cube units that will fit in one layer.
The height tells us how many layers we have so we need to multiply the number of cubes in one layer by that many times.
When you use the volume formula (l x w x h), what are you finding out when you multiply the width or length times the height?
Why do we then multiply by the other dimension?
The number of cube units that will fit in one slice.
The other dimension tells us how many slices we have, so we need to multiply the number of cubes in one layer by that many times.
