The Table shows some physical quantities and their SI units.
Table
| Physical quantity | Name of SI unit | Symbol for SI unit |
|---|---|---|
| force | newton | N\text{N}N |
| energy | J\text{J}J | |
| power | watt | |
| electric current | ||
| frequency | hertz | Hz\text{Hz}Hz |
Complete the Table.
A student writes:
'The mass of the bag is 20 N.'
State what is wrong with the student's statement.
Give the SI unit of time.
Give the SI unit of speed.
39 exam-style questions on Edexcel GCSE Physics 1.1 Units and quantities, covering 1.1.1 SI units for physical quantities and 1.1.2 Unit prefixes, conversions, significant figures and standard form. Each one has a worked solution and a mark scheme showing where the marks go.