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Compound Units

Practise using compound units such as speed, unit pricing and density to solve problems.

Level 1 Level 2 Level 3 Exam-Style Description Help More Mensuration

This is level 2; Converting between one compound unit and another. You can earn a trophy if you get at least 7 questions correct.

Convert 2km/h to metres per hour. m/h Correct Wrong

Convert 90km/h to kilometres per minute. km/m Correct Wrong

Convert 18km/h to metres per second. Give your answer to three significant figures. m/s Correct Wrong

Convert 14ms-1 to kilometers per hour. kmh-1 Correct Wrong

Convert 43 pence per centimetre into pounds per metre. £/m Correct Wrong

Convert $550 per metre into cents per millimetre. ¢/mm Correct Wrong

Convert a density of 9.5 kilograms per cubic metre into grams per cubic metre. g/m3 Correct Wrong

Convert a density of 5600 kilograms per cubic metre into grams per cubic centimetre. g/cm3 Correct Wrong

Convert a density of 0.8g/cm-3 into kilograms per cubic metre. kg/m3 Correct Wrong

The acceleretion of a particle is given as 0.988ms-2. Convert this quantity to kmh-2 correct to three significant figures. kg/h-2 Correct Wrong

Check

This is Compound Units level 2. You can also try:
Level 1 Level 3

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

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Go Maths

Learning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths page is an alphabetical list of free activities designed for students in Secondary/High school.

Maths Map

Are you looking for something specific? An exercise to supplement the topic you are studying at school at the moment perhaps. Navigate using our Maths Map to find exercises, puzzles and Maths lesson starters grouped by topic.

Teachers

If you found this activity useful don't forget to record it in your scheme of work or learning management system. The short URL, ready to be copied and pasted, is as follows:

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Description of Levels

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Level 1 - Using simple compund units in calculations

Level 2 - Converting between one compound unit and another

Level 3 - Solving problems involving compound units

Useful Information

mph stands for miles per hour

km/h stands for kilometers per hour

Distance = Speed x Time

Mass = Density x Volume

Pressure = Force ÷ Area

There are 100 centilitres in a litre

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly.

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