A physics teacher

Linear momentum is a physical quantity that depends on the mass and the velocity of the object. Fig 1 below shows an object that has mas...

A quantity is a characteristics of a body that can be measured with an instrument. Examples are length, area, temperature and so on. All t...

After distance and displacement that we have seen earlier, I am now going to talk about speed and velocity. They are quite different and to ...

Distance and displacement are two quantities that are used to describe motion. We are going to have a look at both of them and see how to di...