Units and Conversions
IGCSE Edexcel Physics
5.1 Units and Conversions
Key Concepts:
Use standard SI units and convert between units carefully.
Section A: Units
1. State the SI units for temperature, density, pressure, and volume.
[4]
Section B: Conversions
2. Convert $2.5\,dm^3$ to $m^3$.
[2]
3. Convert $0.02\,m^3$ to $cm^3$.
[2]
Total marks: 8
Mark Scheme
1.
K or $^\circ C$, $kg/m^3$, Pa, $m^3$ [4]
2.
$2.5\,dm^3 = 2.5 \times 10^{-3}\,m^3$ [2]
3.
$0.02\,m^3 = 2.0 \times 10^{4}\,cm^3$ [2]