The Particle Model and Motion of an Object

[Ostronomos]

For purposes of analyzing motion, we can consider the mass of an object as being concentrated into a single point. Where each successive frame of a motion diagram represents the motion of the point. This point is called a particle.

To develop our understanding of motion further, we need to make quantitative measurements. We need to use numbers. Examples of one-dimensional motion include: a train traveling along a track, an elevator going up and down, a bicycle traveling along a sidewalk.

Reference: College Physics by Randall D. Knight and Brian Jones

I thought that I would add this interesting article to top it all off: Science is proving Richard Dawkins and the New Atheists wrong