Measurements basics
Units & Conversions
Time
Speed
100

The SI unit of length.

Metre m

100

100 centimetres is equal to this many metres

1 metre

100

The SI unit for time

Seconds s

100

The formula for calculating speed

speed = distance รท time

200

The tool used to measure the length of a classroom

Meter stick

200

1 kilometre equals this many metres

1000 metres

200

The instrument used to measure short time intervals in experiments

Stopwatch 

200

The unit for speed

meters per second (m/s)

300

The correct unit to measure the thickness of a coin

Millimetre mm

300

Convert 250 cm into metres

2.5 m

300

The formula triangle for speed shows that time equals this divided by speed.

Distance

300

A car travels 100 m in 20 s. Calculate its speed

5m/s

400

The term used to describe how close a measurement is to the true value

Accuracy

400

Convert 5 km into metres

5000 m

400

If a journey takes 2 hours, this is how many minutes.

120 mins

400

If you know speed and time, you multiply them to find this

Distance

500

How do you measure cylinder objects?

Vernier Callipers

500

Convert 90 minutes into hours

1.5 hours

500

The term for improving reliability

Repeating 

500

A cyclist travels at 10 m/s for 30 seconds. Calculate the distance travelled

3000 m