The laws of physics are expressed as mathematical relationships among physical quantities. Most of these quantities are derived quantities, or they can be expressed as combination of some basic quantities. There are mainly three quantities in physics or mechanics, Length , Mass and Time.

Position of an object is its location. and Displacement is the total change of position in an object which is in motion. Continue reading to find more about Position and Displacement.

Motion is the process of changing of position by an object.
Everything around us is in motion Continue Reading to find more about motion and its properties.