Summary
Measurements in geometry involve understanding units of length, mass, and capacity. The metric system is used for these measurements, with standard units being metre for length, gram for mass, and litre for capacity.
- Metre (m) — the standard unit of length in the metric system. Example: The distance between two cities is measured in kilometres, where 1 km = 1000 m.
- Gram (g) — the standard unit of mass in the metric system. Example: A small apple might weigh about 150 grams.
- Litre (L) — the standard unit of capacity in the metric system. Example: A bottle of water might contain 1 litre of liquid.
Exam Tips
Key Definitions to Remember
- 1 km = 1000 m
- 1 kg = 1000 g
- 1 kL = 1000 L
Common Confusions
- Confusing the conversion factors between units, such as metres to centimetres.
- Mixing up units of mass and capacity, like grams and litres.
Typical Exam Questions
- How many metres are in 3 kilometres? 3000 metres
- Convert 5000 millilitres to litres. 5 litres
- What is the mass in grams of 2.5 kilograms? 2500 grams
What Examiners Usually Test
- Ability to convert between different units of measurement.
- Understanding of the metric system and its standard units.
- Application of conversion factors in practical problems.