Quizzes 6,7 Answers

1. What is light?
2. What is matter?
3. How do light and matter interact?
4. What are the three basic types of spectra?
5. How does light tell us what things are made of?
6. What is a photon?
7. What is the speed of light?
8. What is wavelength?
9. What is frequency?
10. What is the frequency of the 21 cm wavelength light?

1. What are the types of spectra?
2. Which is hotter a blue or a red star?
3. Do humans emit electromagnetic radiation?
4. Which planet looks red from Earth?
5. Describe a refraction telescope
6. Describe a reflection telescope
7. Why telescopes are sent to space?
8. Can we detect radio waves from space?
9. Describe the Arecibo telescope in Puerto Rico
10. What is the Doppler effect?