The Table shows some prefixes used with units.
Table
| Prefix | Symbol | Multiplying factor |
|---|---|---|
| giga | G\text{G}G | 10910^{9}109 |
| mega | 10610^{6}106 | |
| kilo | k\text{k}k | |
| centi | c\text{c}c | 10−210^{-2}10−2 |
| milli | m\text{m}m | |
| micro | μ\muμ | 10−610^{-6}10−6 |
| nano | 10−910^{-9}10−9 |
Complete the Table.
An electric kettle has a power of 2.5 kW.
Give the power of the kettle in W\text{W}W.
The current in a lamp is 450 mA.
Give the current in A\text{A}A.
A radio station broadcasts at a frequency of 98 MHz.
Give this frequency in Hz\text{Hz}Hz, in standard form.
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.