Measurements
Maths: Edexcel IGCSE Higher, topic 4.4.1
Measurements
Devices used to make measurements have a scale which tells you the precision of a measurement made with the device.
Ruler
- Rulers measure length.
- A standard classroom ruler has a scale of 1 mm, as that is the smallest amount you can measure.
Scales
- Scales measure the mass of objects.
- A typical set of kitchen scales has a scale of 0.1 g.
Thermometer
- Thermometers measure temperature.
- A standard thermometer has a scale of 1°C.
Measuring cylinder
- Measuring cylinders measure the volume of substances.
- The scale of a measuring cylinder depends on the amount of substance it can hold.
- Common scales for measuring cylinders are 1 ml, 2 ml, 5 ml, 10 ml and 50 ml.
Test yourself on Measurements
What is the scale of the thermometer shown below?
What is the scale of the weighing scales shown below?
What is the scale of the tape measure shown below?
What is the scale of the kitchen scales shown below?
Which measuring device measures temperature?