26. September, 2017Uncategorized

Watch the video (as many times as needed) and answer the questions in complete sentences in your notebook.

1.What did the Greek philosopher, Pythagoras, think was the source of light that allowed you to see?

2. What would the Arab scientist, Alhazen, consider to be a natural source of light?

3.What did Newton think light was?

4. What did interference patterns suggest light is?

5. Describe the 20th century experiment that showed light acting like a particle.

6. What is quanta?

7. What is the name of the new theory that came from these experiments?