Understanding Units of Measurement

What does 'cm' stand for?

• Centimetres

• Millimetres

• Metres

• Kilometres

Answer explanation

'cm' stands for centimetres, which is a unit of length in the metric system. It is commonly used to measure shorter distances, unlike millimetres, metres, or kilometres.

How many millimetres are there in 1 centimetre?

• 1 mm

• 10 mm

• 100 mm

• 1000 mm

Answer explanation

There are 10 millimetres in 1 centimetre because 1 centimetre is defined as 10 millimetres. Therefore, the correct answer is 10 mm.

What is the conversion factor from metres to centimetres?

• 10

• 100

• 1000

• 1

Answer explanation

The conversion factor from metres to centimetres is 100, as there are 100 centimetres in one metre. Therefore, to convert metres to centimetres, you multiply by 100.

If 1 kilometre equals 1000 metres, how many metres are in 2 kilometres?

• 500

• 1000

• 1500

• 2000

Answer explanation

Since 1 kilometre equals 1000 metres, to find the number of metres in 2 kilometres, multiply 2 by 1000. Thus, 2 kilometres equals 2000 metres, making the correct answer 2000.

What is the abbreviation for kilometres?

• cm

• mm

• m

• km

Answer explanation

The abbreviation for kilometres is 'km'. Other options like 'cm' (centimetres), 'mm' (millimetres), and 'm' (metres) represent different units of measurement, making 'km' the correct choice.

How many centimetres are there in 1 metre?

• 10

• 50

• 100

• 1000

Answer explanation

There are 100 centimetres in 1 metre. This is a standard conversion in the metric system, where 1 metre is defined as equal to 100 centimetres.

What is the conversion factor from millimetres to metres?

• 10

• 100

• 1000

• 0.001

Answer explanation

To convert millimetres to metres, you divide by 1000, since there are 1000 millimetres in a metre. Therefore, the conversion factor is 0.001.

If 1 cm equals 10 mm, how many mm are in 5 cm?

• 50

• 100

• 150

• 200

Answer explanation

Since 1 cm equals 10 mm, to find how many mm are in 5 cm, multiply 5 by 10. Thus, 5 cm equals 50 mm. Therefore, the correct answer is 50.

What does 'mm' stand for?

• Centimetres

• Millimetres

• Metres

• Kilometres

Answer explanation

'mm' stands for millimetres, which is a unit of length in the metric system. It is commonly used to measure small distances, making 'Millimetres' the correct answer among the options provided.

How many metres are there in 1 kilometre?

• 10

• 100

• 1000

• 10000

Answer explanation

There are 1000 metres in 1 kilometre, as the prefix 'kilo-' means 1000. Therefore, the correct answer is 1000.