3.1 Use the following units: degree (°), hertz (Hz), metre (m), metre/second (m/s), second (s).

         unit                                    use
° - degree                               temperature
Hz - hertz                               frequency
m - meter                               amplitude; wavelength; distance
m/s - meter per second          speed / velocity
s - second                               time

Important: speed and velocity have the same units, and typically even the same equations. However, velocity is a vector quantity while speed is a scalar quantity