Contents
Key Stage 3
Meaning
Milli is a Unit Prefix that means a number is 1000 times smaller than the normal unit.
About Milli
- Milli can be shortened to a lower case m.
Examples
- A millimetre (mm) is 1/1000th of a metre (m).
- A millivolt (mV) is 1/1000th of a volt (V).
- A milligram (mg) is 1/1000th of a gram (g).
- An ant may be around 4 millimetres (4mm) long.
Converting from Milli
To convert from milli to the base unit you must divide by 1000. \[83000mm = \frac{83000}{1000}m = 83m\]
\[2600mA = \frac{2600}{1000}A = 2.6A\]
\[170mV = \frac{170}{1000}V = 0.17V\]
\[22mN = \frac{22}{1000}N = 0.022N\]
\[6mJ = \frac{6}{1000}J = 0.006J\]
Converting to Milli
To convert to milli from a base unit you must times by 1000. \[4m = 4\times1000mm = 4000mm\]
\[34A = 34\times1000mA = 24000mA\]
\[1.9V = 1.9\times1000mV = 1900mV\]
\[0.73N = 0.73\times1000mN = 730mN\]
\[0.092J = 0.092\times1000mJ = 92mJ\]
Key Stage 4
Meaning
Milli is a Unit Prefix that means a number is 10-3 of the normal unit.
About Milli
- Milli can be shortened to a lower case m.
Examples
- A millimetre (mm) is 10-3 metres (m).
- A millivolt (mV) is 10-3 volts (V).
- A milligram (mg) is 10-3 grams (g).
Converting from Milli
To convert from milli to the base unit you must times by 10-3. \[83000mm = 83000\times10^{-3}m = 83m\]
\[2600mA = 2600\times10^{-3}A = 2.6A\]
\[170mV = 170\times10^{-3}V = 0.17V\]
\[22mN = 22\times10^{-3}N = 0.022N\]
\[6mJ = 6\times10^{-3}J = 0.006J\]
Converting to Milli
To convert to milli from a base unit you must times by 103 because there are 1000 of them in the base unit. \[4m = 4}{10^{3}mm = 4000mm\]
\[34A = 34\times10^{3}mA = 24000mA\]
\[1.9V = 1.9\times10^{3}mV = 1900mV\]
\[0.73N = 0.73\times10^{3}mN = 730mN\]
\[0.092J = 0.092\times10^{3}mJ = 92mJ\]