## Unit 22 Section 4 : Capacity
When we refer to how much liquid a tank or container can hold, we often talk about its capacity in litres.
The main units of capacity are the litre (l) and the millilitre (l).
## Example QuestionWhat is the capacity, in litres, of a cubic tank with dimensions 1m by 1m by 1m?
It is always easier to convert between volume and capacity in cm³ and ml, so we work out the volume in cm³. The capacity of the tank is 1000 litres. Because the volume of the tank in this example is 1 m³, this actually gives us another helpful fact linking volume and capacity:
You can use the key facts in the boxes above to answer all the questions in this section. ## Practice QuestionsWork out the answers to each of these questions then click to see whether you are correct.
We could answer this in a similar way to the example above:
We could also answer this question using the fact that 1 m³ = 1000 litres:
This time we convert to millilitres first and then to litres:
## ExercisesWork out the answers to the questions below and fill in the boxes. Click on the button to find out whether you have answered correctly. If you are right then will appear and you should move on to the next question. If appears then your answer is wrong. Click on to clear your original answer and have another go. If you can't work out the right answer then click on to see the answer.
You have now completed Unit 22 Section 4
Produced by A.J. Reynolds May 2011 |