Saturday, September 26, 2009

Journal 9/25



The incident beam, incident beam's normal, and the reflective beam along with the normal are drawn correctly. The second reflective beam is also drawn correctly. The only thing not drawn correctly is the normal, which needs to be adjusted



The incident beam, the incident beam's normal, and the reflective beam along with it's normal is drawn correctly. The second reflective beam is not drawn correctly. What needs to be changed is the angle of the second reflective beam.



The incident beam, incident beam's normal, and reflective beam are drawn correctly. The normal and second reflective beam are not drawn correctly and need to be adjusted.

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In my opinion...

Andrew,



Did the best overall work. I believe this because this diagram shows the most accurate path of the light ray. Drawing the normal incorrectly is a minor flaw in comparison to not correctly judging where the path of the light is.

Thursday, September 24, 2009

Journal 9/25



The incident beam, incident beam's normal, and the reflective beam along with the normal are drawn correctly. The second reflective beam is also drawn correctly. The only thing not drawn correctly is the normal, which needs to be adjusted



The incident beam, the incident beam's normal, and the reflective beam along with it's normal is drawn correctly. The second reflective beam is not drawn correctly. What needs to be changed is the angle of the second reflective beam.



The incident beam, incident beam's normal, and reflective beam are drawn correctly. The normal and second reflective beam are not drawn correctly and need to be adjusted.

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In my opinion...

Andrew,



Did the best overall work. I believe this because this diagram shows the most accurate path of the light ray. Drawing the normal incorrectly is a minor flaw in comparison to not correctly judging where the path of the light is.

Monday, September 21, 2009

Journal 9/18 Continued.

How did you disprove the idea that each point on the light bulb emits one light ray? Describe how you used this idea to make a prediction that did not come true.

The idea that each point on the light bulb emits only one light ray was dis proven when a layer of tin-foil with a pin hole at the top covered the light bulb in the dark room. When the light bulb was turned on, various amount of light beams were shooting out in different straight directions from the pin hole. This experiment proved that the light bulb emitted more than one light ray.

Thursday, September 17, 2009

Journal 9/18

What did you do in class today? What did you learn, and why do you believe it?

In class today, we did an experiment involving a light-bulb in a dark room. We were then given two models in the packet, one being a model that correctly demonstrates where/how the light reflects to our eyes and the other being an incorrect model.

What I learned was that the second model was the correct model and that light spreads off in multiple directions evenly distributed. I believe this because the experiment that had been conducted proves it so.