Week of October 8th, 2009. Period 2

In the past week in Mr. Finley's Second Period class, We were testing to see how the rays of light go through a glass of water and which direction the light would go through each time. We atempted many expirements based on this and we concluded that when we move into a more dense material, the ray moves toward the normal line. When the ray moves into a less dense material, it is closet to the surface.

the image above isnt very clear but the dotted line is the normal line and the solid line going across left-to-right is the surface or interface.

Another thing we learned about this week is that we learned how the direction of propagation works and refraction/ the bending of light works. This water and light expirement is a perfect example of how light bends through different kinds of less dense/ more dense materials.

The materials we tried to test were solids, liquids, and gases.

We took observations when Mr Finley put his hand in front of the projector and we saw the shadow of his hand on the smart board. We noticed that it depends on how close his hand was to the projector that it shows how focused and blurry around the edges can be and how large the image was on the board.