Difference between a point, a line segment, a ray and a line

Author:
Mathguru
On the screen, we can see a point A in blue color, a line segment BC in black color, a ray DE in green color and a line FG in red color. Move these points A, B, C, D, E, F and G and see how the position of the point, the line segment, the ray and the line gets changed.
1. What difference do you observe between a point, a line segment, a ray and a line?