WAVES UNIT TEST 2 STUDY GUIDE 1. A B C D What is the best description of a wave? a repeating disturbance, vibration, or movement that transfers matter from place to place a lengthy line moving energy through a crest and a trough a repeating disturbance, vibration, or movement that transfers energy from place to place a compression line moving matter through a crest and a trough This diagram shows a wave. Some of the basic properties of a wave are labeled. Use the diagram to help answer the next 4 questions. 2. A B C D What measurement is shown by line A on this wave? amplitude distance 3. A B C D What measurement is shown by line C on this wave? 4. A B C D How do the measurements of line A and line B compare? wavelength frequency amplitude wavelength height frequency They both measure wavelength. They both measure distance. Line A measures wavelength and line B measures distance. Line A measures amplitude and line B measures wavelength. 5. The amount of the wave as measured by line A will pass a certain point as the wave moves. The A B C D number of times it passes that point is referred to as what? speed velocity amplitude frequency 6. The distance between identical points in the adjacent cycles of a waveform, as shown in the diagram below, is called what? A B C D wavelength frequency amplitude speed 7. A B C D What is the number of wavelengths that pass a point each second called? speed frequency amplitude medium 8. A B C D What do the most energetic electromagnetic waves have? long wavelengths and low frequencies short wavelengths and high frequencies long wavelengths and high frequencies short wavelengths and low frequencies 9. Which term best describes the relationship between wavelength and frequency in the A B C D electromagnetic spectrum? direct exponential reciprocal variable 10. A B C D What will a concave lens do to light waves? absorb them focus them reduce them spread them out 11. A B C D Refracting telescopes use which of these as the primary objective? lens mirror pinhole prism 12. Look at this lens. What type of lens is this? A B C D convex plane concave closed 13. Look at this lens. What type of lens is this? A B C D convex plane concave closed 14. A B C D What is a primary difference between reflecting and refracting telescopes? Reflecting telescopes use multiple convex lenses. Reflecting telescopes use multiple concave lenses. Reflecting telescopes produce mirror images of objects. Reflecting telescopes use mirrors as the primary objectives. 15. The picture below shows a light source and a lens. Which path do the light rays follow as they pass through the lens? A B C D 16. Due to the shape of the lens in a camera, how is the actual image on the film shown? A B C D right side up backwards sideways upside down 17. A B C D Which statement below correctly states The Law of Reflection? The angle of incidence is equal to the angle of refraction. The angle of incidence is equal to the angle of diffraction. The angle of incidence is equal to the angle of interference. The angle of incidence is equal to the angle of reflection. 18. Look at this lens. What type of lens is this? A B C D convex plane concave closed 19. The picture below shows a light source and a lens. Which path do the light rays follow as they pass through the lens? A B C D 20. A B C D Which color of light is slowed down the most when it passes through glass? red yellow blue violet 21. A B C D When an object reflects all colors of light well and equally, what color will that object appear to be? white 22. A B C D Why do leaves appear to be green? They absorb all light wavelengths except green. They emit all light wavelengths except green. They reflect all light wavelengths except green. They refract all light wavelengths except green. black the same color(s) as the light shining on it the complementary color(s) of the light shining on it 23. Light coming from a green traffic light is different from that coming from a green leaf because it is A B C D which of these? absorbed emitted focused reflected 24. _______________ is the measurement of the distance between one crest or trough to the next crest or trough on a wave. A. Frequency B. Amplitude C. Wavelength D. Speed 25. In a transverse wave, the taller the wave, the _______________ the amplitude. A. lower B. higher C. faster D. slower 26. Amplitude that is higher results in _______________. A. louder sound B. softer sound C. slower speed D. faster speed 27. Which wave has the highest frequency? C. A. B. D. 28. The waves that the man is creating with the rope are most similar to which of the following type of waves? A. B. C. D. 29. Which of the following is true of all of the waves shown above? A. B. C. D. 30. Radio waves Microwaves X-rays Ocean waves They all destroy matter. They all carry matter. They all destroy energy. They all carry energy. Which of the following terms is best used when describing waves? A. B. C. D. Endless Random Identical Repetition What wave behavior is being shown in the following? 31. Scenario A shows__________. A. B. C. D. 32. Scenario B shows __________. A. B. C. D. 33. Transmission Absorption Reflection Refraction Scenario C shows ___________. A. B. C. D. 34. Transmission Absorption Reflection Refraction Transmission Absorption Reflection Refraction Scenario D shows ___________. A. B. C. D. Transmission Absorption Reflection Refraction 35.Compare and contrast refraction and reflection of waves. 36.This is the material through which a mechanical wave travels. 37.This is any material that transmits most of the light that strikes to pass through and only a small amount of light is reflected or absorbed. 38.This is the spreading out of a wave around corners or through holes. 39.This is the color of objects that do not reflect any light waves, but absorbs them all instead. ANSWER KEY 1. C 2. C 35. Refraction is the bending of waves, reflection is the bouncing back from a surface. Both change the direction of waves. 3. A 36. Medium 4. A 37. Transparent 5. D 38. Diffraction 6. A 39. black 7. B 8. B 9. C 10. D 11. A 12. A 13. B 14. D 15. C 16. D 17. D 18. C 19. C 20. D 21. A 22. A 23. B 24. C 25. B 26. D 27. B 28. D 29. D 30. D 31. C 32. D 33. A 34. B