SABIS End of Year STUDY GUIDE Grade 11 Physics Chapters 25, 27, 28, 29, 32, 33, 34, 35

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1 Name Section SABIS End of Year STUDY GUIDE Grade 11 Physics Chapters 25, 27, 28, 29, 32, 33, 34, 35 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The source of all wave motion is a a. region of variable high and low pressure. b. vibration. c. movement of matter. d. harmonic object. 2. Electromagnetic waves a. need a medium to travel through. b. can travel through a vacuum. 3. The time needed for a wave to make one complete cycle is its a. frequency. b. velocity. c. amplitude. d. period. e. wavelength. 4. The distance between successive identical parts of a wave is called its a. frequency. b. period. c. velocity. d. amplitude. e. wavelength. 5. The Hertz is a a. special radio wave. b. type of car. c. unit of period. d. unit of wavelength. e. unit of frequency. 6. A wave created by shaking a rope up and down is called a a. Doppler wave. b. standing wave. c. longitudinal wave. d. constructive wave. e. transverse wave. 1

2 7. Which of the following is NOT a transverse wave? a. light. b. radio wave. c. sound. d. all of the above. 8. Sound is an example of a a. longitudinal wave. b. constructive wave. c. Doppler wave. d. transverse wave. e. standing wave. 9. A longitudinal wave lacks which of the following properties? a. speed. b. frequency. c. wavelength. d. amplitude. e. A longitudinal wave has all of the above. 10. When two or more waves are at the same place at the same time, the resulting effect is called a. a standing wave. b. a Doppler wave. c. a shock wave. d. interference. e. a period. 11. As the sound of a car's horn passes and recedes from you, the pitch of the horn seems to a. increase. b. stay the same. c. decrease. 12. When a sound source moves towards you, what happens to the wave speed? a. It decreases. b. It increases. c. It stays the same. 13. Some of a wave's energy is always being dissipated as heat. In time, this will reduce the wave's a. frequency. b. wavelength. c. speed. d. period. e. amplitude. 2

3 14. The amplitude of a particular wave is 4.0 m. The top-to-bottom distance of the disturbance is a. 2.0 m. b. 4.0 m. c. 8.0 m. d. none of the above 15. During a single period, the distance traveled by a wave is a. two wavelengths. b. one wavelength. c. one half wavelength. 16. A child swings back and forth on a playground swing. If the child stands rather than sits, the time for a to-and-fro swing is a. unchanged. b. lengthened. c. shortened. 17. The Doppler effect occurs when a source of sound moves a. away from you. b. toward you. c. both A and B d. none of the above 18. Which of these electromagnetic waves has the shortest wavelength? a. Infrared waves b. Light waves c. Radio waves d. X-rays e. Ultraviolet waves 19. Compared to the wavelength of ultraviolet waves, the wavelength of infrared waves is a. the same. b. shorter. c. longer. 20. Compared to the velocity of radio waves, the velocity of visible light waves is a. slower. b. faster. c. the same. 21. Which of the following are fundamentally different from the others? a. Gamma rays b. Radio waves c. Sound waves d. Light waves e. X-rays 22. The main difference between a radio wave and a light wave is its a. speed. b. wavelength. c. both A and B d. none of the above. 3

4 23. The main difference between a radio wave and a sound wave is its a. basic nature. b. amplitude. c. energy. d. frequency. e. wavelength. 24. What is the ultimate source of electromagnetic waves? a. Vibrating atoms b. Vibrating molecules c. Radio sets d. Vibrating charged particles e. TV antennas 25. Humans are most sensitive to light that is a. red. b. white. c. black. d. yellow-green. e. green-blue. 26. Different colors of light correspond to different light a. frequencies. b. polarities. c. intensities. d. velocities. 27. The sky is blue because air molecules in the sky act as tiny a. resonators that scatter blue light. b. sources of white light. c. prisms. d. mirrors that reflect only blue light. 28. The law of reflection says that a. the angle of reflection from a mirror equals the angle of incidence. b. waves incident on a mirror are partially reflected. c. all waves incident on a mirror are reflected. d. the angle a ray is reflected from a mirror is random. 29. When a virtual image is created in a plane mirror a. the image is upright. b. the image is located behind the mirror. c. reflected rays diverge. d. all of the above 4

5 30. An echo occurs when sound a. is transmitted through a surface. b. is reflected from a distant surface. c. changes speed when it strikes a distant surface. d. all of the above 31. Diffuse reflection occurs when the size of surface irregularities is a. larger than 1 m in diameter. b. large compared to the wavelength of the light used. c. small compared to the wavelength of the light used. d. larger than 1 cm in diameter. 32. Refraction is caused by a. different wave speeds. b. more than one reflection. c. displaced images. d. bending. 33. You can hear noises a long distance away over water at night because a. of lowered temperature. b. water conducts sound better at night. c. sound is reflected off water more efficiently at night. d. of refraction of sound in air. 34. The average speed of light is greatest in a. orange glass. b. blue glass. c. red glass. d. green glass. e. It is the same in all of the above. 35. A penny lies in the bottom of a tea cup filled with water. As you look down on the penny, compared to its actual depth, it looks a. closer. b. farther away. c. at the same depth. 36. A mirage can occur a. when cooler air is above hotter air. b. when there s a layer of hot air close to the ground. c. on a hot day. d. all of the above 37. The critical angle for a light from the bottom of a swimming pool shining upward toward the pool's surface is the angle a. where light is refracted so it just skims the pool surface. b. 43 degrees. c. at which all light is refracted out of the pool. d. 42 degrees. e. at which some light is reflected from the surface. 5

6 38. A beam of light emerges from water into air at an angle. The beam is bent a. away from the normal. b. not at all. c. 48 degrees upward. d. 96 degrees upward. e. towards the normal. 39. When a light beam emerges from water into air, the average light speed a. remains the same. b. decreases. c. increases. 40. The effect that we call a mirage has most to do with a. reflection. b. refraction. c. diffraction. d. interference. e. scattering. 41. A person standing waist-deep in a swimming pool appears to have short legs because of light a. refraction. b. interference. c. diffraction. d. reflection. e. absorption. 42. Different colors of light travel at different speeds in a transparent medium. In a vacuum, different colors of light travel at a. the same speed. b. different speeds. 43. The explanation for a filled root beer mug looking fuller than it is involves a. refraction. b. reflection. c. both d. neither 44. The spectrum produced by a prism or a raindrop is evidence that the average speed of light in the material depends on the light's a. transmission qualities. b. color. c. wave nature. d. particle nature. 45. A beam of light travels fastest in a. air. b. water. c. plastic. d. glass. e. Its average speed is the same in each of the above. 6

7 46. A rainbow nicely illustrates an example of light a. internal reflection. b. refraction. c. both A and B d. neither A nor B 47. When you throw a ball at the floor at an angle of 37º to the normal, you observe that its movement follows the law of reflection. This means that the ball bounces away at an angle of to the normal. a. 0º b. 37º c. 53º d. 90º 48. Two like charges a. neutralize each other. b. repel each other. c. must be neutrons. d. attract each other. e. have no effect on each other. 49. Protons and electrons a. attract each other. b. repel each other. c. do not interact. 50. Electrical forces between charges are strongest when the charges are a. far apart. b. close together. c. The electrical force is constant everywhere. 51. Coulomb's law says that the force between any two charges depends a. directly on the size of the charges. b. inversely on the square of the distance between the charges. c. both A and B d. none of the above 52. Two charges are separated by a certain distance. If the magnitude of each charge is doubled, the force on each charge is a. halved. b. doubled. c. tripled. d. quadrupled. 53. When the distance between two charges is halved, the electrical force between the charges a. doubles. b. reduces to one fourth. c. halves. d. quadruples. 7

8 54. If you comb your hair and the comb becomes positively charged, your hair becomes a. uncharged. b. positively charged. c. negatively charged. 55. In a good insulator, electrons are usually a. not moving at all. b. free to move around after an impurity has been added. c. free to move around. d. tightly bound in place. e. semi-free to move around. 56. Objects can be charged by a. induction. b. friction. c. touching. d. all of the above 57. If you walk into a region of space and suddenly feel a force, the space is said to contain a a. charged object. b. force field. c. large charge. d. black hole. e. heavy object. 58. An electric field has a. direction. b. magnitude. c. Both A and B 59. Every proton in the universe is surrounded by its own a. gravitational field. b. electric field. c. both A and B d. none of the above 60. The direction of electric field lines shows the a. direction of the force on a test positive charge. b. size of the field. c. strength of the field. d. all of the above 61. A small, positively charged object near a positively charged sphere is moved closer to the sphere. The electrical potential energy of the small object a. stays the same. b. decreases. c. increases. 8

9 62. A volt is a unit of a. charge. b. electric potential. c. energy. d. work. e. current. 63. In order for there to be a flow of charge from one place to another, there must be a a. conductor, such as a wire, connecting the two places. b. potential difference between the two places. c. Both A and B above 64. In solid conductors, electric current is the flow of a. positive and negative charges. b. electrons. c. negative ions. d. protons. 65. Electrons move in an electric circuit a. by being bumped by other electrons. b. by interacting with an established electric field. c. by colliding with molecules. d. because the wires are so thin. 66. An example of a voltage source is a. a dry cell. b. a generator. c. a car battery. d. rubbing a rubber rod with fur. e. all of the above 67. Electrical resistance is measured in a. volts. b. joules. c. watts. d. amperes. 68. Alternating current is made by a. alternating current and voltage. b. alternating the direction of voltage of the power source. c. huge chemical batteries. d. none of the above 69. Current from a battery is always a. DC. b. AC. 9

10 70. Electric power is defined as a. current times voltage. b. current divided by voltage. c. current times resistance. d. resistance times voltage. e. voltage divided by current. 71. Power outlets in our homes typically have a potential difference of a. 30 V. b. 120 A. c. 60 A. d. 240 V. e. 120 V. 72. A 15-ohm resistor has a 5-A current in it. What is the voltage across the resistor? a. 5 V b. 15 V c. 20 V d. 25 V e. more than 25 V 73. What is the resistance of a toaster that uses 5 A of current when connected to a 120-volt power source? a. 5 ohms b. 24 ohms c. 120 ohms d. 600 ohms 74. When connected to a 110-volt power supply, how much current is in a light bulb that has a resistance of 220 ohms? a. 0.5 A b. 2.0 A c. 110 A d. 220 A e. 24,200 A 75. In order to form an electric circuit, you need to have a. wires or conductors to connect everything. b. a power source. c. a light bulb or some resistance. d. a complete path for the current. e. all of the above 76. In order for current to flow in a circuit, you must have a. a switch that is open. b. a complete path for the current. c. two light bulbs in parallel. d. two light bulbs in series. e. all of the above 10

11 77. Compared to the resistance of two resistors connected in series, the same two resistors connected in parallel have a. less resistance. b. more resistance. c. the same resistance. 78. When one light bulb in a series circuit containing several light bulbs burns out a. none of the other bulbs will light up. b. nothing changes in the rest of the circuit. c. the other light bulbs burn brighter. 79. When one light bulb in a parallel circuit containing several light bulbs burns out, the other light bulbs a. do not burn at all. b. burn brighter. c. burn the same as before. 80. In a simple parallel circuit a. current through each branch is always the same. b. voltage across each branch is always the same. c. the value of each resistor is the same. d. the circuit won't work unless there is a fuse in it. 81. In a simple parallel circuit a. voltage across each branch is the same. b. current through each resistor is inversely proportional to the resistance. c. current is divided at each branch. d. all of the above 82. Electrical devices in our homes are connected in a. parallel. b. series. 83. Fuses and circuit breakers are used to a. protect us. b. prevent overloading. c. keep wires from getting overheated. d. break the circuit when too much current is being used. e. all of the above 84. The total resistance of a 10-ohm resistor and a 7-ohm resistor in series is a. 2 ohms. b. 3 ohms. c. 7 ohms. d. 17 ohms. e. 70 ohms. 11

12 85. The total resistance of a 6-ohm resistor and a 12-ohm resistor in parallel is a. 4 ohms. b. 6 ohms. c. 18 ohms. d. 20 ohms. e. 73 ohms. True/False Indicate whether the statement is true or false. 86. The amplitude of a wave is the vertical distance from the midpoint to either the crest or the trough of the wave. 87. The distance between successive identical parts of a wave is its displacement. 88. The number of times a wave vibrates each second is its period. 89. Sound waves are examples of longitudinal waves. 90. The unit of the period of a wave is the hertz. 91. Material in an object that selectively absorbs colored light is called a pigment. 92. The sky is blue because air molecules absorb blue light. 93. The law of reflection says that all light reaching a boundary between two surfaces is reflected. 94. When you look at the image of a candle in a plane mirror, you see a real image. 95. Reflection occurs when one part of a wave travels more slowly than another part. 96. The separation of light into colors arranged according to their frequency is dispersion. 97. A line perpendicular to a surface is called a normal line. 98. Coulomb's law for electrical charges has the same mathematical form as Newton's law of gravitation. 99. A material is a good insulator if outer electrons of atoms in the material are free to roam around A material that is a good insulator of electricity is normally a poor conductor of electricity When a charge is placed in a region of space where there is an electric field, the charge will experience a force The energy a charge possesses by virtue of its location is called electrical potential energy The unit of electric current is the ampere. 12

13 104. A voltage source is something that separates charges in a useful way Ohm's law is a relationship among voltage, current, and charge Most of the electricity we buy through power companies is direct current. Essay 107. What is a transverse wave? For a transverse wave, define wavelength, amplitude, period, frequency, and wave speed. What are the units of each? Explain how these characteristics are related. Draw a diagram! 108. What is the difference between a transverse wave and a longitudinal wave? Give examples of each. 13

14 109. Which waves are part of the electromagnetic spectrum? What are their approximate frequencies? Give examples of where you can find each kind of wave State Coulomb's law. Explain what each symbol in it stands for, and use it to find the force between a C charge and a C charge that are 10 meters apart What is refraction? Why does it occur? Give examples of sound refraction and light refraction What is a mirage? When are mirages formed? Give an example of a mirage you have seen. 14

15 [Type text] ANSWER KEY MAIA G11 T2EOYCONCEPTUAL PHYSICS 25, 27, 28, 29, 32, 33, 34, 35, STUDY GUIDE Answer Section MULTIPLE CHOICE 1. ANS: B PTS: 1 DIF: L1 OBJ: 25.2 Wave Description STA: IP.4.1 IP.MSS.2 KEY: wave motion 2. ANS: B PTS: 1 DIF: L1 OBJ: 27.2 The Speed Of Light STA: IP.MSS.2 KEY: medium vacuum 3. ANS: D PTS: 1 DIF: L1 OBJ: 25.1 Vibration of a Pendulum STA: IP.4.1 KEY: time period 4. ANS: E PTS: 1 DIF: L1 OBJ: 25.2 Wave Description STA: IP.4.1 IP.MSS.2 KEY: distance wavelength 5. ANS: E PTS: 1 DIF: L1 OBJ: 25.2 Wave Description STA: IP.4.1 IP.MSS.2 KEY: Hertz unit 6. ANS: E PTS: 1 DIF: L1 OBJ: 25.5 Transverse Waves STA: IP.4.1 IP.4.3 KEY: transverse wave 7. ANS: C PTS: 1 DIF: L2 OBJ: 25.6 Longitudinal Waves STA: IP.4.1 IP.4.3 KEY: transverse wave 8. ANS: A PTS: 1 DIF: L1 OBJ: 25.6 Longitudinal Waves STA: IP.4.1 IP.4.3 KEY: sound wave 9. ANS: E PTS: 1 DIF: L2 OBJ: 25.6 Longitudinal Waves STA: IP.4.1 IP.4.3 KEY: longitudinal wave 10. ANS: D PTS: 1 DIF: L1 OBJ: 25.7 Interference STA: IP.4.1 KEY: interference 11. ANS: C PTS: 1 DIF: L2 OBJ: 25.9 The Doppler Effect STA: IP.4.1 IP.4.6 KEY: Doppler pitch 12. ANS: C PTS: 1 DIF: L2 OBJ: 25.9 The Doppler Effect STA: IP.4.1 IP.4.6 KEY: speed source sound 13. ANS: E PTS: 1 DIF: L2 OBJ: 25.3 Wave Motion STA: IP.4.1 IP.4.2 KEY: heat wave amplitude BLM: analysis 14. ANS: C PTS: 1 DIF: L2 OBJ: 25.2 Wave Description STA: IP.4.1 IP.MSS.2 KEY: amplitude distance BLM: application 15. ANS: B PTS: 1 DIF: L1 OBJ: 25.2 Wave Description STA: IP.4.1 IP.MSS.2 KEY: period distance 16. ANS: C PTS: 1 DIF: L2 OBJ: 25.1 Vibration of a Pendulum STA: IP.4.1 KEY: pendulum time 17. ANS: C PTS: 1 DIF: L1 OBJ: 25.9 The Doppler Effect STA: IP.4.1 IP.4.6 KEY: Doppler source 18. ANS: D PTS: 1 DIF: L2 OBJ: 27.3 Electromagnetic Waves STA: IP.4.2 IP.6.1 IP.6.2 KEY: short wavelength 15

16 [Type text] 19. ANS: C PTS: 1 DIF: L2 OBJ: 27.3 Electromagnetic Waves STA: IP.4.2 IP.6.1 IP.6.2 KEY: wavelength 20. ANS: C PTS: 1 DIF: L2 OBJ: 27.3 Electromagnetic Waves STA: IP.4.2 IP.6.1 IP.6.2 KEY: velocity 21. ANS: C PTS: 1 DIF: L2 OBJ: 27.3 Electromagnetic Waves STA: IP.4.2 IP.6.1 IP.6.2 KEY: electromagnetic sound wave 22. ANS: B PTS: 1 DIF: L2 OBJ: 27.3 Electromagnetic Waves STA: IP.4.2 IP.6.1 IP.6.2 KEY: radio light 23. ANS: A PTS: 1 DIF: L2 OBJ: 27.3 Electromagnetic Waves STA: IP.4.2 IP.6.1 IP.6.2 KEY: radio sound 24. ANS: D PTS: 1 DIF: L1 OBJ: 27.3 Electromagnetic Waves STA: IP.4.2 IP.6.1 IP.6.2 KEY: source waves 25. ANS: D PTS: 1 DIF: L1 OBJ: 28.8 Why the Sky Is Blue KEY: humans light 26. ANS: A PTS: 1 DIF: L1 OBJ: 28.1 The Color Spectrum KEY: color frequency 27. ANS: A PTS: 1 DIF: L2 OBJ: 28.8 Why the Sky Is Blue KEY: blue sky resonator BLM: analysis 28. ANS: A PTS: 1 DIF: L1 OBJ: 29.1 Reflection STA: IP.4.4 KEY: reflection 29. ANS: D PTS: 1 DIF: L2 OBJ: 29.3 Mirrors STA: IP.4.4 KEY: virtual mirror image 30. ANS: B PTS: 1 DIF: L1 OBJ: 29.5 Reflection of Sound STA: IP.4.4 KEY: echo reflect 31. ANS: B PTS: 1 DIF: L2 OBJ: 29.4 Diffuse Reflection STA: IP.4.4 KEY: diffuse reflection 32. ANS: A PTS: 1 DIF: L1 OBJ: 29.6 Refraction STA: IP.4.4 KEY: refract speed wave 33. ANS: D PTS: 1 DIF: L2 OBJ: 29.7 Refraction of Sound STA: IP.4.4 KEY: sound refraction 34. ANS: C PTS: 1 DIF: L2 OBJ: Dispersion in a Prism STA: IP.4.4 KEY: light speed 35. ANS: A PTS: 1 DIF: L2 OBJ: 29.8 Refraction of Light STA: IP.4.4 KEY: refract water BLM: application 36. ANS: D PTS: 1 DIF: L2 OBJ: 29.9 Atmospheric Refraction STA: IP.4.4 KEY: mirage heat air 37. ANS: A PTS: 1 DIF: L2 OBJ: Total Internal Reflection STA: IP.4.4 KEY: critical angle light 38. ANS: A PTS: 1 DIF: L2 OBJ: 29.8 Refraction of Light STA: IP.4.4 KEY: light water angle 39. ANS: C PTS: 1 DIF: L2 OBJ: 29.8 Refraction of Light STA: IP.4.4 KEY: light water air 40. ANS: B PTS: 1 DIF: L1 OBJ: 29.9 Atmospheric Refraction STA: IP.4.4 KEY: mirage refraction 41. ANS: A PTS: 1 DIF: L2 OBJ: 29.8 Refraction of Light STA: IP.4.4 KEY: refraction 16

17 [Type text] 42. ANS: A PTS: 1 DIF: L1 OBJ: Dispersion in a Prism STA: IP.4.4 KEY: color transparent vacuum 43. ANS: A PTS: 1 DIF: L2 OBJ: 29.8 Refraction of Light STA: IP.4.4 KEY: mug glass refraction 44. ANS: B PTS: 1 DIF: L2 OBJ: Dispersion in a Prism STA: IP.4.4 KEY: spectrum color 45. ANS: A PTS: 1 DIF: L2 OBJ: 29.8 Refraction of Light STA: IP.4.4 KEY: light speed 46. ANS: C PTS: 1 DIF: L2 OBJ: The Rainbow STA: IP.4.4 KEY: rainbow refraction reflection 47. ANS: B PTS: 1 DIF: L2 OBJ: 29.2 The Law of Reflection STA: IP.4.4 KEY: law of reflection reflection normal BLM: application 48. ANS: B PTS: 1 DIF: L1 OBJ: 32.1 Electrical Forces and Charges STA: IP.5.1 IP.5.4 KEY: repel charge 49. ANS: A PTS: 1 DIF: L1 OBJ: 32.1 Electrical Forces and Charges STA: IP.5.1 IP.5.4 KEY: proton neutron 50. ANS: B PTS: 1 DIF: L2 OBJ: 32.3 Coulomb's Law STA: IP.5.1 IP.5.4 KEY: force electric 51. ANS: C PTS: 1 DIF: L2 OBJ: 32.3 Coulomb's Law STA: IP.5.1 IP.5.4 KEY: Coulomb charge 52. ANS: D PTS: 1 DIF: L2 OBJ: 32.3 Coulomb's Law STA: IP.5.1 IP.5.4 KEY: charge distance BLM: application 53. ANS: D PTS: 1 DIF: L2 OBJ: 32.3 Coulomb's Law STA: IP.5.1 IP.5.4 KEY: force distance BLM: application 54. ANS: C PTS: 1 DIF: L2 OBJ: 32.5 Charging by Friction and Contact STA: IP.5.1 IP.5.4 KEY: comb charge BLM: application 55. ANS: D PTS: 1 DIF: L1 OBJ: 32.4 Conductors and Insulators STA: IP.5.1 IP.5.4 KEY: insulator electron 56. ANS: D PTS: 1 DIF: L1 OBJ: 32.5 Charging by Friction and Contact 32.6 Charging by Induction STA: IP.5.1 IP.5.4 KEY: charge induction friction 57. ANS: B PTS: 1 DIF: L1 OBJ: 33.1 Electric Fields KEY: force field 58. ANS: C PTS: 1 DIF: L1 OBJ: 33.1 Electric Fields KEY: electric field 59. ANS: C PTS: 1 DIF: L1 OBJ: 33.1 Electric Fields KEY: proton gravity electric 60. ANS: A PTS: 1 DIF: L1 OBJ: 33.2 Electric Field Lines KEY: electric field 61. ANS: C PTS: 1 DIF: L2 OBJ: 33.4 Electrical Potential Energy KEY: charge sphere BLM: analysis 62. ANS: B PTS: 1 DIF: L1 OBJ: 33.5 Electric Potential KEY: unit volt 63. ANS: C PTS: 1 DIF: L2 OBJ: 34.1 Flow of Charge STA: IP.5.2 IP.5.3 KEY: flow charge 17

18 [Type text] 64. ANS: B PTS: 1 DIF: L1 OBJ: 34.2 Electric Current STA: IP.5.2 IP.5.3 KEY: conductor solid electrons 65. ANS: B PTS: 1 DIF: L2 OBJ: 34.9 The Speed of Electrons in a Circuit STA: IP.5.2 IP.5.3 KEY: electrons circuit 66. ANS: E PTS: 1 DIF: L2 OBJ: 34.3 Voltage Sources STA: IP.2.2 IP.5.2 KEY: voltage 67. ANS: E PTS: 1 DIF: L1 OBJ: 34.4 Electric Resistance STA: IP.5.2 KEY: resistance unit 68. ANS: B PTS: 1 DIF: L1 OBJ: 34.7 Direct Current and Alternating Current STA: IP.5.2 KEY: current alternating 69. ANS: A PTS: 1 DIF: L1 OBJ: 34.7 Direct Current and Alternating Current STA: IP.5.2 KEY: battery DC 70. ANS: A PTS: 1 DIF: L1 OBJ: Electric Power STA: IP.5.2 IP.5.5 KEY: power current voltage 71. ANS: E PTS: 1 DIF: L1 OBJ: 34.7 Direct Current and Alternating Current STA: IP.5.2 KEY: power outlet difference 72. ANS: E PTS: 1 DIF: L2 OBJ: 34.5 Ohm's Law STA: IP.5.2 KEY: ohm current voltage BLM: application 73. ANS: B PTS: 1 DIF: L2 OBJ: 34.5 Ohm's Law STA: IP.5.2 KEY: resistance amp volt BLM: application 74. ANS: A PTS: 1 DIF: L2 OBJ: 34.5 Ohm's Law STA: IP.5.2 KEY: power bulb resistance BLM: application 75. ANS: E PTS: 1 DIF: L1 OBJ: 35.1 A Battery and a Bulb STA: IP.5.3 KEY: circuit path 76. ANS: B PTS: 1 DIF: L1 OBJ: 35.1 A Battery and a Bulb STA: IP.5.3 KEY: current flow 77. ANS: A PTS: 1 DIF: L2 OBJ: 35.3 Series Circuits STA: IP.5.3 KEY: resistance series 78. ANS: A PTS: 1 DIF: L2 OBJ: 35.3 Series Circuits STA: IP.5.3 KEY: circuit bulb BLM: application 79. ANS: C PTS: 1 DIF: L2 OBJ: 35.4 Parallel Circuits STA: IP.5.3 KEY: parallel bulb circuit BLM: application 80. ANS: B PTS: 1 DIF: L2 OBJ: 35.4 Parallel Circuits STA: IP.5.3 KEY: parallel voltage 81. ANS: D PTS: 1 DIF: L2 OBJ: 35.4 Parallel Circuits STA: IP.5.3 KEY: parallel circuit 82. ANS: A PTS: 1 DIF: L1 OBJ: 35.7 Parallel Circuits and Overloading STA: IP.5.3 KEY: home electricity 83. ANS: E PTS: 1 DIF: L1 OBJ: 35.7 Parallel Circuits and Overloading STA: IP.5.3 KEY: fuse breaker 84. ANS: D PTS: 1 DIF: L2 OBJ: 35.6 Combining Resistors in a Compound Circuit STA: IP

19 [Type text] KEY: resistor series BLM: application 85. ANS: A PTS: 1 DIF: L2 OBJ: 35.6 Combining Resistors in a Compound Circuit KEY: resistor parallel BLM: application STA: IP.5.3 TRUE/FALSE 86. ANS: T PTS: 1 DIF: L1 OBJ: 25.2 Wave Description STA: IP.4.1 IP.MSS.2 KEY: amplitude crest 87. ANS: F PTS: 1 DIF: L1 OBJ: 25.2 Wave Description STA: IP.4.1 IP.MSS.2 KEY: distance displacement 88. ANS: F PTS: 1 DIF: L1 OBJ: 25.2 Wave Description STA: IP.4.1 IP.MSS.2 KEY: vibrate period 89. ANS: T PTS: 1 DIF: L1 OBJ: 25.6 Longitudinal Waves STA: IP.4.1 IP.4.3 KEY: sound longitudinal 90. ANS: F PTS: 1 DIF: L1 OBJ: 25.1 Vibration of a Pendulum STA: IP.4.1 KEY: period hertz 91. ANS: T PTS: 1 DIF: L1 OBJ: 28.3 Color by Transmission KEY: pigment 92. ANS: F PTS: 1 DIF: L2 OBJ: 28.8 Why the Sky Is Blue KEY: sky blue absorb 93. ANS: F PTS: 1 DIF: L1 OBJ: 29.2 The Law of Reflection STA: IP.4.4 KEY: reflection law 94. ANS: F PTS: 1 DIF: L2 OBJ: 29.3 Mirrors STA: IP.4.4 KEY: plane image real 95. ANS: F PTS: 1 DIF: L1 OBJ: 29.6 Refraction STA: IP.4.4 KEY: reflection speed 96. ANS: T PTS: 1 DIF: L1 OBJ: Dispersion in a Prism STA: IP.4.4 KEY: light color dispersion 97. ANS: T PTS: 1 DIF: L1 OBJ: 29.8 Refraction of Light STA: IP.4.4 KEY: normal perpendicular 98. ANS: T PTS: 1 DIF: L2 OBJ: 32.3 Coulomb's Law STA: IP.5.1 IP.5.4 KEY: Coulomb Newton 99. ANS: F PTS: 1 DIF: L1 OBJ: 32.4 Conductors and Insulators STA: IP.5.1 IP.5.4 KEY: insulator electron 100. ANS: T PTS: 1 DIF: L1 OBJ: 32.4 Conductors and Insulators STA: IP.5.1 IP.5.4 KEY: insulator conductor 101. ANS: T PTS: 1 DIF: L2 OBJ: 33.1 Electric Fields KEY: charge force field 102. ANS: T PTS: 1 DIF: L1 OBJ: 33.4 Electrical Potential Energy KEY: energy potential 103. ANS: T PTS: 1 DIF: L1 OBJ: 34.2 Electric Current STA: IP.5.2 IP.5.3 KEY: unit current 104. ANS: T PTS: 1 DIF: L1 OBJ: 34.3 Voltage Sources 19

20 [Type text] STA: IP.2.2 IP.5.2 KEY: voltage charge 105. ANS: F PTS: 1 DIF: L1 OBJ: 34.5 Ohm's Law STA: IP.5.2 KEY: ohm law charge 106. ANS: F PTS: 1 DIF: L1 OBJ: 34.7 Direct Current and Alternating Current STA: IP.5.2 KEY: DC power ESSAY 107. ANS: An oscillation that propagates in space and time is a wave. When the oscillation vibrates at right angles to the direction of wave travel, the wave is a transverse wave. The distance between successive crests or other corresponding of the wave is the wavelength. Wavelength is measured in centimeters, meters, or any unit of distance. The depth of a transverse wave, at right angles to the wavelength, is the amplitude. This is the distance from the equilibrium point to the crest of the wave (or to a trough). Wavelength is measured in any appropriate unit of distance. The time for equal parts of a wave to pass a given point is called its period, usually measured in seconds. How frequently the wave vibrates is called its frequency, usually measured in hertz. One hertz is one vibration per second. The wave speed is the speed at which the wave travels, measured in meters per second or any other appropriate unit of speed. The period and frequency of a wave are reciprocals. For example, a 2-hertz wave has a period of second a 3-hertz wave has a period of second and so on. Wave speed is equal to wavelength multiplied by frequency. PTS: 1 DIF: L2 OBJ: 25.2 Wave Description 25.3 Wave Motion 25.4 Wave Speed 25.5 Transverse Waves STA: IP.4.1 IP.MSS.2 IP.4.1 IP.4.2 IP.4.1 IP.4.5 IP.MSS.1 IP.MSS.2 IP.4.1 IP.4.3 KEY: transverse characteristic 108. ANS: In a transverse wave, oscillations are perpendicular to the wave velocity. Oscillations in a longitudinal wave are forward and backward in the direction of the wave s velocity. Waves on a string, waves on the surface of water, and electromagnetic waves are transverse waves; sound waves and waves along the axis of a coil spring are longitudinal waves. PTS: 1 DIF: L2 OBJ: 25.5 Transverse Waves 25.6 Longitudinal Waves STA: IP.4.1 IP.4.3 KEY: transverse longitudinal 109. ANS: Radio waves, microwaves, infrared waves, visible light, ultraviolet waves, X-rays, and gamma rays are all part of the electromagnetic spectrum. Their approximate frequencies are 10 3 to 10 6 Hz, 10 7 to Hz, to Hz, Hz, to Hz, Hz, and Hz respectively. Radio waves are emitted at radio broadcast towers, and microwaves in microwave ovens. Microwaves are also used to transmit TV and information signals across Earth and between Earth and satellites. Infrared, visible, and ultraviolet waves are found in sunlight. X-rays are found in medical laboratories and also are emitted from most stars and galaxies. Gamma rays are emitted by nuclear reactions in laboratories and in reactors. PTS: 1 DIF: L2 OBJ: 27.3 Electromagnetic Waves STA: IP.4.2 IP.6.1 IP.6.2 KEY: waves electromagnetic 110. ANS: 20

21 [Type text] The force between two charges depends directly on the magnitude of each charge and inversely on the square of the distance between the charges., where k ( ) is the proportionality constant, q 1 and q 2 are the magnitudes of the charges, d is the distance between the charges, and F is the force between the charges. PTS: 1 DIF: L2 OBJ: 32.3 Coulomb's Law STA: IP.5.1 IP.5.4 KEY: Coulomb distance force BLM: application 111. ANS: Refraction is the bending of light or sound as it passes from one medium to another. Light and sound are refracted because they travel at different speeds in different media. Sound refraction occurs at concerts on hot summer days when it is often difficult to hear the band. It also is responsible for noises traveling better across water at night than in the daytime. Lenses work because of light refraction. A pencil in a glass of water will appear broken because of light refraction. PTS: 1 DIF: L2 OBJ: 29.6 Refraction STA: IP.4.4 KEY: refraction light sound 112. ANS: A mirage is something seen in a different place than it really is. It occurs when light is bent as it passes through different temperature layers in the atmosphere. "Wet pavement" seen on a hot summer day is an example of a mirage. PTS: 1 DIF: L2 OBJ: 29.9 Atmospheric Refraction STA: IP.4.4 KEY: mirage refraction 21

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