Speed is a measure of how fast something or somebody is moving. The units of speed are linked to the units of distance and time being used. A formula triangle is a quick way to calculate the speed, ...

Time is how long something takes to happen. The distance, speed and time triangle is an easy way to remember the formulae to help you work out problems. 1) A zombie walks at a pace of 2km/h. There is ...

Units of speed are always a unit of length per unit of time. Different units of length and time may be chosen depending on the situation. This makes it easier to read the measurements. For example, ...