TEST ID: _____A UNIT IV: WAVES Test 5 CONCEPTUAL PHYSICS Rutland High School DO NOT WRITE ON THIS TEST! WRITE YOUR “TEST ID” ON YOUR ANSWER DOCUMENT. MULTIPLE CHOICE (2 points each): Select the letter that corresponds to the choice that best completes the statement or answers the question. Completely fill in the box for the letter you have selected. 1. The source of all wave motion is a a. b. c. d. 8. region of variable high and low pressure. vibration. movement of matter. harmonic object. a. b. 9. 2. The distance between successive identical parts of a wave is called its a. b. 3. c. d. shortens. not enough information. 2 m. 4 m. c. d. 6 m. 8 m. amplitude. speed. c. d. frequency. period. c. d. type of car. unit of period. The Hertz is a a. b. 7. lengthens. stays the same. Some of a waves’ energy is always being dissipated as heat. In time, this will reduce the wave’s a. b. 6. wavelength. frequency. The amplitude of a particular wave is 4 m. The top-tobottom distance of the disturbance is a. b. 5. c. d. You dip your finger repeatedly into water and make waves. If you dip your finger more frequently, the wavelength of the waves a. b. 4. amplitude. velocity. special radio wave. unit of frequency. When two or more waves are at the same place at the same time, the resulting effect is called a. b. a shock wave. interference. c. d. a Doppler wave. a standing wave. A certain ocean wave has a frequency of 0.07 hertz and a wavelength of 10 meters. What is the wave’s speed? 0.07 m/s 0.70 m/s c. d. 1.0 m/s 10 m/s A wave created by shaking a rope up and down is called a a. b. transverse wave. Doppler wave. c. d. standing wave. longitudinal wave. 10. Which of the following is NOT a transverse wave? a. b. light radio wave c. d. sound none of the above c. d. Doppler wave. transverse wave. 11. Sound is an example of a a. b. longitudinal wave. constructive wave. 12. The Doppler effect occurs when a source of sound moves a. b. away from you. toward you. c. d. both A and B none of the above 13. Different colors of light correspond to different light a. b. frequencies. polarities. c. d. intensities. velocities. 14. If a light ray strikes a flat mirror at an angle of 29° from the normal, the reflected ray will be a. b. 27° from the normal. 29° from the normal. c. d. 58° from the normal. equal to the normal. 15. Which of the following is NOT an electromagnetic wave? a. b. Light Infrared c. d. Radio Sound Page 1 of 4 16. The period (the time to complete one full oscillation) of a simple pendulum depends on __________. I. II. III. a. b. length of the pendulum mass of the plumb bob Acceleration due to gravity I only II only c. d. I and III only II and III only 17. When the reflection of an object is seen in a flat mirror, the image is a. b. real and inverted. virtual and inverted. c. d. real and upright. virtual and upright. reflects light. appears in front of a mirror. appears behind a mirror. diffuses light. faster. slower. c. d. the same. none of the above 20. An echo occurs when sound a. b. c. d. is transmitted through a surface. is reflected from a distant surface. changes speed when it strikes a distant surface. all of the above. 1.5 m 6.0 m 25. Ray diagrams are used to a. b. c. d. c. d. figure out where an image will be located. find the focal point of a lens. draw pretty pictures. figure out what kind of lens is being used. 26. A real image can be formed using a a. b. flat mirror. convex mirror. c. d. concave mirror. All of the above 12.0 m 3.0 m away from the normal. c. not at all. d. 48° upward. towards the normal. 28. A person standing waist-deep in a swimming pool appears to have short legs because of light a. b. 21. If you stand 3.0 m in front of a flat mirror, how far away from you would your image be in the mirror? a. b. when a wave changes speed. only at a wave front. at any unpredictable time. only with light waves. 27. A beam of light emerges from water into air at an angle. The beam is bent 19. Compared to its speed in air, the speed of light in water is a. b. a. b. c. d. a. b. 18. A virtual image a. b. c. d. 24. Refraction occurs refraction. interference. c. d. diffraction. reflection. 29. When a light beam emerges from water into air, the average light speed a. b. c. remains the same. decreases. increases. 30. Different colors of light travel at different speeds in a transparent medium. In a vacuum, different colors of light travel at 22. A beam of light travels fastest in a. b. a vacuum. water. c. d. air. glass. a. b. the same speed. different speeds. THIS ENDS THE MULTIPLE CHOICE SECTION OF YOUR TEST 23. Which of the following is a consequence of the refraction of light? a. b. rainbows internal reflection c. d. mirages all of the above Page 2 of 4