Units


It's important when referring to numeric values that the correct units are identified.

For example, don't confuse a value in miles with a value in kilometers.



distance

	miles, kilometers


angles
	degrees, radians


temperature

	celcius, fahrenheit




multipliers

	tera		10^12
	giga		10^9
	mega		10^6
	kilo		10^3

	milli		10^-3
	micro		10^-6
	nano		10^-9
	pico		10^-12


e.g. 

	26 micometers = 0.0000026 metres

	4 kilograms = 4000 grams



^ = to the power of,


4^3 = 4x4x4 = 64

