Scalar quantities are physical quantities which have a magnitude, but no direction. They are measured with a numerical value. Some examples of scalar quantities are:
Vector quantities are different to scalar quantities because they have a magnitude and a direction. Some examples of vector quantities are:
Arrows can also be used to show the vector, instead of a written description. The arrow will show the magnitude and the direction. You can see an example of a force below:
This would mean 20 newtons to the right.