We will have the test for Unit II: Light on Thursday, September 10th. Below are the review problems, which we will work on today and tomorrow. Please also count your purple stamps and wirte the number in your notebook scoresheet and on my scoresheet at school.
These problems are taken from the textbook. Remember, you are allowed to use your notebook on the test, so keep these problems in your notebook and check with your peers and with me to make sure your answers are correct!
p.419
7. Is the color spectrum simply a small segment of the electromagnetic spectrum? Defend your answer.
8. How do the frequencies of infrared, visible, and ultraviolet compare?
18. Distinguish between an umbra and a penumbra.
19. a. Distinguish between a solar eclipse and a lunar eclipse.
b. Which type of eclipse is dangerous to your eyes if viewed directly?
23. How do polarizing filters allow each eye to see separate images in the projection of three-dimensional slides or movies?
24. What evidence can you cite to support the idea that light can travel through a vacuum?
p.439
1. List the order of the colors in the color spectrum.
2. Are black and white real colors, in the sense that red and green are?
Tuesday, September 8, 2009
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