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Light in Physical Science Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. Scientists questioned the wave theory of light when they saw that increasing the light intensity would only increase the _____ of emitted electrons.

Question 2 2. When studying the photoelectric effect, scientists observed that _____were emitted from metal in response to a beam of light.

Question 3 3. By studying the red and blue shifts of the galaxies, scientists concluded that the universe is

Question 4 4. The carotenoids on a yellow bird's feathers absorb all light frequencies except for

Question 5 5. Opacity is caused by the _____ of light waves.

Page 2

Question 6 6. Sunscreen is _____ to visible light waves and _____ to ultraviolet light.

Question 7 7. Standing waves can only occur in a medium that is

Question 8 8. Pigments create the appearance of color through _____ absorption.

Question 9 9. The separation of white light through a prism happens because each frequency (color) is _ at a different angle.

Question 10 10. Which of the following represents the six spectral colors in order of increasing frequency?

Page 3

Question 11 11. The visible light spectrum sits between the _____ and _____ regions of the electromagnetic spectrum.

Question 12 12. The theory of wave-particle duality states that all matter has properties of

Question 13 13. Transmission of light waves depends on the passing of energy from one _____ to the next.

Question 14 14. As the frequencies of the pure spectral colors increase, the wavelengths of the colors:

Question 15 15. Sounds in the _____ range are best for reflecting off of small objects.

Page 4

Question 16 16. Which of the following is NOT a source of visible light?

Question 17 17. It is useful to think of a photon as a packet of

Question 18 18. Transparency is caused by the _____ of light waves.

Question 19 19. A sonic boom is produced when an airplane travels

Question 20 20. In Snell's Law, the ratio of the indices is related to the inverse ratio of the _ of the angles.

Page 5

Question 21 21. Diffraction is the bending of waves when they

Question 22 22. The direction of a reflected ray striking a curved surface depends upon

Question 23 23. Standing waves occur as a combination of constructive interference and

Question 24 24. Destructive interference occurs when the crest of one wave lines up with the _____ of another wave.

Question 25 25. Resonance of light waves results in

Page 6

Question 26 26. When playing a trumpet, the vibrations made by the lips on the mouthpiece have to match the resonant frequency of

Question 27 27. Sound waves in the _____ range are best at traveling over large distances.

Question 28 28. Which of the following is an example of light behaving like a particle?

Question 29 29. The normal is an imaginary line that is

Question 30 30. While the actual frequency does not change, the apparent frequency may change if the wave source is

Light in Physical Science Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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