Shadows

=UNIT 2 Optics=

Chapter 5 Optical systems make use of mirrors and lenses.
5.1 The Ray Model of Light

5.1 Shadows page 171

This page is about Shadows. For your knowledge, here's a bit about Shadows: Say your walking outside, the sun is out but your walking away from it when you look down you see your shadow following your every step of the way. Ever wonder why you have a shadow? heres why: When the sunbeams hit an object(you) they can't go through you so they have to go around you, so the dark spot on the ground(your shadow) is one of the spots where the light is unable to hit. This is why you have a shadow!

and how big they are going to be. || is related to the distance of the object from the light source. || they can't go through you, so they have to go around you, so where the sunbeams don't hit the ground is where you see a shadow. ||
 * Questions: || Answers: ||
 * Can you predict how big a shadow is going to be? How. || Yes. A ray diagram will be able to tell you where shadows will form
 * What does a ray diagram do? || Ray diagrams are sometimes used to tell us the how the size of shadows
 * How are shadow's created? || when the sunbeams are streaming down from the sky and they hit you,

Here are a few pictures of what shadows can look like?