| Topic | Summary |
| Multiples and decimals for the SI system |
The units in the SI system are referred to as basic units. |
| Length |
Length is a measurement of linear distance. |
| Mass |
Mass is a unit or system of units by which a degree of heaviness is measured. |
| Time |
The metric system’s base unit of time is the second (s) while the Imperial system uses the minute (min) as its base measurement. |
| Velocity |
Velocity is the measurement of distance traveled over a period of time. |
| Volume |
Volume is the amount of space occupied by a three-dimensional object. |
| Area |
Area is the amount of expanse of a flat or curved surface. |
| Electrical units |
Basic electrical measurements are: Volts, Amperes, Ohm and Watts. All these measurements are defined by Ohm's Law. |
| Pressure |
Pressure is a measurement of force per unit area. |
| Energy |
Energy is used up when any physical system does work. |
| Temperature |
Temperature is the measurement of heat intensity. |
| Torque |
Torque is the twisting force applied to a shaft. |
| Power | Power is the ability to do work. |