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Measurement usually involves recording the size or length of something, but almost anything can be measured - electrical current, temperature or force for example. Each of these have their own units - electrical current in amps, temperature in degrees Celsius and force in newtons. Accurate measurement is an essential part of undertaking scientific investigations. You will have used many different types of measuring equipment in your lessons. Measuring beakers, meter wheels and stopwatches - these are all pieces of equipment used to measure things. How many more can you remember? And what is each used to measure?

1.

Which unit of measurement would you use for temperature?

Degrees Celsius

Litres

Kilograms

Amperes

Temperature is measured in degrees Celsius or sometimes in degrees Fahrenheit or Kelvin

2.

Which unit is a measurement of volume?

Degrees Celsius

Litres

Metres

Amperes

Degrees Celsius measure temperature, meters measure distance and amperes measure electric current

3.

What measuring equipment would you need to measure the height of an object and the amount of a liquid?

A measuring jug and a ruler

A stopwatch and a measuring jug

A ruler and a thermometer

A forcemeter and a ruler

Measuring jugs measure amounts of liquids and rulers measure length, width or height

4.

To investigate the strength of a magnet, you could see how many paper clips could be suspended from the magnet. What would your units be in this investigation?

Metres

Number of paper clips

Litres

Newtons

Force is measured in newtons, using a forcemetre (or Newtonmeter). In this case, however, the number of paper clips would be the unit of measurement

5.

If you were investigating how hand length is related to height, what measuring equipment would you need?

Weighing scales

A measuring jug and a tape measure

A meter rule and a tape measure

A thermometer

You would need to measure both the length of people's hands and their height

6.

If you were investigating different materials for insulating coffee, what measuring equipment would you need to test how cool the coffee was after 10 minutes?

A meter rule

A measuring jug

A voltmeter

A thermometer

You would also need a watch or stopwatch to measure the 10 minutes

7.

Which unit of measurement would you use for length and height?

Degrees Celsius

Litres

Metres

Kilograms

Meters and centimeters are used for measuring length and height

8.

If you created a catapult and wanted to test how far it could 'throw' different objects, what would you need to measure?

The distance the object is 'thrown' and the height of the catapult

The volume and height of the object

The mass of the objects and the distance each object is 'thrown'

All of the above

Lighter objects would probably be thrown further than heavier ones - why not try this experiment to see if I am right?

9.

Which units of measurement would you use for the height of an object and the amount of a liquid?

Amps and newtons

Newtons and kilograms

Grams and degrees Celsius

Millimeters and milliliters

Millimeters can measure height and milliliters can measure amounts of liquid

10.

If you were investigating the effect different amounts of water had on plant growth, what would you need to measure?

The plant height only

The amount of water only

Both plant height and amount of water

Neither plant height nor amount of water

As we are looking at the effect different amounts of water have on the height of plants, we need to measure both