1. Light behaves like both a particle and a ______.

2. What particles make up light?

3. What smaller particles make up photons?

4. Photons are bundles of what kind of energy?

5. Which of the following is not a property of a photon?

6. What happens to the energy of a photon when it strikes matter?

7. What happens to the energy of a photon as the frequency of the wave increases?

8. What does the letter 'h' represent in the formula E = hv?

9. What famous scientist first developed the concept of the photon?

10. True or False: Microwaves, X-rays, and radio waves are all made up of photons.