Semester II Review part 1

Transcription

1 Semester II Review part 1 1. What term is used to identify frequencies higher than our ability to hear? a. Ultrasonic b. Supersonic c. Hypersonic d. Subsonic e. Infrasonic 2. Waves are additive. As a result, a combination of waves at the same frequency that line up on top of each other would be an example of a. Positive wave integration b. Negative wave integration c. In-phase continuum alignment d. Destructive interference e. Constructive interference 3. The speed of sound is totally dependent on the elasticity of the medium. a. True b. False 4. As defined by our textbook, a pulse of low-pressure particles in the transmission of sound is known as a/an a. Compressional wave b. Rarefactional wave c. Bow wave d. Shock wave 5. The top of a wave is known as a. Crest b. Trough c. Base d. Rest e. Wave length 6. The point of a wave that crosses the midpoint of wave as it moves is known as a. Frequency b. Amplitude c. Node d. Antinode

2 7. When discussing the concept of light, how is colour measured? By observing a. Frequency b. Wave length c. Amplitude d. Medium the wave is passing through 8. What term is used to identify the speed of a vehicle that travels faster than the speed of sound? a. Ultrasonic b. Supersonic c. Hypersonic d. Subsonic e. Infrasonic 9. The distance from the midpoint of a wave to the top of the wave is known as a. Frequency b. Amplitude c. Node d. Antinode 10. A bright white light passes you, the frequency of the light pushes against itself along its path. The light leaving you will decrease the frequency that you see and alter the light quality. This is known as a. Amplitude compression b. Red shift c. Rarefaction d. Blue shift 11. The crest and trough are also known as a. Frequency b. Amplitude c. Node d. Antinode 12. What unit is used when referring to frequency? a. Cycles b. Hertz c. Decibels d. Candles

3 13. As discussed in class, the best definition of a wave would be a. A pictorial view of your heart beating b. A rumbling of thunder c. A headache d. Sitting on the dock of a bay e. A disturbance 14. What unit is used when referring to amplitude of light? a. Cycles b. Hertz c. Decibels d. Candles 15. What is the unit of measure for the amplitude of sound? a. Cycles b. Hertz c. Decibels d. Candles 16. When discussing the concept of sound, how is Loudness measured? By observing a. Frequency b. Wave length c. Amplitude d. Medium the wave is passing through 17. When discussing the concept of light, how is brightness measured? By observing a. Frequency b. Wave length c. Amplitude d. Medium the wave is passing through 18. Waves associated with sound are known as a. Longitudinal waves b. Supersonic waves c. Transverse waves d. Hypersonic waves

4 19. Which of the following terms refer to the stationary points on a standing wave along the rest line? a. Antinode b. Crest c. Node d. Trough 20. When a wave source approaches, an observer encounters waves of a higher frequency. As the wave source passes the observer the frequency decreases. This is known as a. Hyperbaric chamber displacement b. Doppler Effect c. Supersonic aberrations d. Bow wave displacement 21. A bright white light approaches you, the frequency of the light pushes against itself along its path. The approaching light will increase the frequency that you see and alter the light quality. This is known as a. Amplitude compression b. Red shift c. Rarefaction d. Blue shift 22. A wave that is incoming (before it bounces off anything) is known as a/an a. Incident wave b. Reflective wave c. Compressional wave d. Royal wave 23.? is when an object moves faster than the speed of sound and is heard as a sonic boom. a. Subsonic waves b. Infrasonic waves c. Shock waves 24. As defined by our text book, when the crest of a sound wave overlaps at the edges by a moving object it produces a v-shaped pattern. The resulting wave is known as a. Compressional wave b. Rarefactional wave c. Bow wave d. Shock wave

5 25. What term used to identify frequencies lower than our ability to hear? a. Ultrasonic b. Supersonic c. Hypersonic d. Subsonic e. Infrasonic 26. As defined by our textbook, a pulse of compressed particles in the transmission of sound is known as a/an a. Compressional wave b. Rarefactional wave c. Bow wave d. Shock wave 27. What term is used to identify the speed of a vehicle that travels slower than the speed of sound? a. Ultrasonic b. Supersonic c. Hypersonic d. Subsonic e. Infrasonic 28. The bottom of a wave is known as a. Crest b. Trough c. Base d. Rest e. Wave length 29. What unit is used when referring to amplitude focusing on sound? a. Cycles b. Hertz c. Decibels d. Candles 30. The distance from one crest to the next crest is known as a. Crest b. Trough c. Base d. Rest e. Wave length

6 31. When discussing the concept of sound, how is pitch measured? By observing a. Frequency b. Wave length c. Amplitude d. Medium the wave is passing through 32. A wave that bounces of an object is known as a/an a. Incident wave b. Reflective wave c. Compressional wave d. Royal wave 33. Waves associated with the electromagnetic spectrum are referred to as a. Longitudinal waves b. Supersonic waves c. Transverse waves d. Hypersonic waves 34. The number of waves per unit of time is known as a. Frequency b. Amplitude c. Node d. Antinode 35. Waves are additive. As a result, a combination of waves at the same frequency that do not line up on top of each other would be an example of a. Positive wave integration b. Negative wave integration c. In-phase continuum alignment d. Destructive interference e. Constructive interference 36. What is the lowest frequency on the Electromagnetic spectrum? a. Radio b. Ultraviolet c. X-rays d. Gamma rays

7 37. What phrase is used when mixing frequencies in order to produce a desired colour of light? a. Additive mixing b. Subtractive mixing c. Refractive mixing d. Reflective mixing 38. What type of telescope is represented in the diagram? a. Refractive telescope b. Compound telescope c. Reflective telescope d. Wal Mart Christmas special 39. Who was the American that identified the speed of light and received the Nobel Prize in physics in 1907? a. Olaus Roemer b. Christian Huygens c. Albert Michelson d. Albert Einstein 40. Who identified that light behaved as a particle as well as a wave? a. Olaus Roemer b. Christian Huygens c. Albert Michelson d. Albert Einstein

8 41. What term describes the inability of light to pass through an object? a. Transparent b. Translucent c. Transatlantic d. Opaque 42. The protection from damaging rays which is known to cause skin cancer can be done with an SPF as low as?. a. 50 b. 30 c. 20 d What colour would you see if the coat you are looking at absorbs red, blue, green, orange, and violet? a. Black b. White c. Purple d. Yellow 44. What type of lens is represented in the diagram? a. Concave b. Convex c. Plane (flat) 45. What type of lens is represented in the diagram? a. Concave b. Convex c. Plane (flat)

9 46. In order to see a rainbow, what do you need to make sure? a. The sun is between you and the rain cloud b. The rain cloud is classified as severe c. Make sure you are between 40 0 and 42 0 with the light source behind you d. Make sure the rain is in front of you and the sun is low in the sky 47. Which of the following is not a primary colour of light? a. Red b. Green c. Yellow d. Blue 48. Please identify the umbra in the following diagram A B C D 49. Working as a stage crew for the production of The Fantasticks, you assemble the lighting necessary to reflect the mood of the scene. As a result, you make sure you have plenty lights of Red, Blue and Green in case of a burn-out. You know this because the mixing of lights is a physics principle known as a. Photographic aberrations b. Additive mixing c. Subtractive mixing d. Broadway requirements for productions

10 50. What type of telescope is represented in the diagram? a. Refractive telescope b. Compound telescope c. Reflective telescope d. Amazon Christmas special 51. Please identify the penumbra A. B. C. D. 52. Which of the following is not a primary colour of paint? a. Red b. Green c. Yellow d. Blue 53. The sky is blue because its component particles scatter high frequency light. a. True b. False

11 54. Which of the following is the secondary color for a mixing of red and green light? a. White b. Orange c. Yellow d. Purple 55. Which of the following is the secondary color for a mixing of red and blue paint? a. Green b. Orange c. Yellow d. Purple 56. Which of the following is the secondary color for a mixing of red and yellow paint? a. Green b. Orange c. Cyan d. Purple 57. Mixing paint or other pigments together is allowing us to see colors based on the dyes used. But this type of mixing in physics is known as a. Photographic aberrations b. Additive mixing c. Subtractive mixing d. Broadway requirements for productions 58. A mirage is an image produced by the refraction of light in the Earth s atmosphere. a. True b. False 59. Which theory of light is the photon more consistent with? a. The wave theory b. The particle theory c. The Big Bang theory d. Evolution 60. What happens to the energy of light when it encounters an opaque object? a. It passes straight through b. All energy is reflected off the surface c. All energy is refracted through the material d. It is converted into thermal energy

12 61. Why do smooth metal surfaces make good mirrors? a. They have special powers known only to physicist and chemist b. They reflect most all of the visible light c. The electromagnetic field of the visible light interacts with the metal and is repelled. d. Because it is not rough 62. What is the law of reflection? a. Angle of incidence is equal to the angle of refraction b. Angle of incidence is equal to the angle of normality c. Angle of incidence is equal to the angle of reflection d. Angle of incidence is equal to the angle of incense 63. Standing on the pier at Eagle Mountain lake, what impact does refraction have on items in the water? a. They appear deeper b. There is no difference in their appearance of depth c. They appear shallower 64. If an image can be projected on a screen at AMC theaters, what does this tell you about the theaters projector? a. The projector has at least one convex lens which creates a real image that exhibits converging light rays that are diverging. As a result the image in the projector is upside down. b. The projector has at least one convex lens which creates a real image that exhibits converging light rays that are inverted. As a result the image in the projector is right side up c. The projector has at least one concave lens which creates a real image that exhibits converging light rays that are inverted. As a result the image in the projector is upside down d. The projector has at least one convex lens which creates a real image that exhibits converging light rays that are inverted. As a result the image in the projector is upside down

13 True (A) or False (B) 65. Electrons and protons have the same charge and therefore attract each other. F 66. Electric charge is neither created nor destroyed, but can be rearranged. T 67. A material is a good insulator if outer electrons of atoms in the material are free to roam around. F 68. When an object is changed by induction, electrons flow from the ground onto the object or from the object to the ground. F 69. Electricity will always do its best to find the easiest way to ground T Multiple Choice 70. Atomic nuclei of almost all atoms consist of a. Only protons b. Protons and neutrons c. Protons and electrons d. Neutrons and electrons 71. The net charge of a non-ionized atom a. Depends only on the number of protons it has b. Depends only on the number of electrons it has c. Is zero d. Usually cannot be determined 72. A positive ion has a. One proton b. More electrons than protons c. More protons than electrons d. A +1 charge always

14 73. Coulomb s law says that the force between any two charges depends a. Directly on the magnitude of the charges b. Inversely on the square of the distance between the charges c. Both of the above are correct d. The answer is not here 74. The common Hydrogen atom consists of a. One proton b. One proton and one electron c. Two protons, one neutron, and two electrons d. One neutron and one electron 75. In a good insulator, electrons are usually a. Free to move around b. Free to move around after an impurity has been added c. Semi-free to move around d. Tightly bound in place 76. The reason a charged balloon will stick to a wall is that a. The charge is slightly sticky and acts like glue b. Electrons transfer back and forth between the wall and the balloon c. Induced opposite charges in the wall are closer than other wall charges d. Balloon material simply sticks to the wall 77. The charge distribution in some molecules is permanently separated in two regions. Such molecules are called a. Ionized molecules b. Electric dipoles c. Insulators d. Coulomb molecules True (A) or False (B) 78. When a charge is placed on an electric field, the charge will experience a force a. T b. F 79. The direction of lines of force shows how large a force will be on a charge placed in an electric field a. T b. F

15 80. Even though a car may be struck by lightning, people inside the car will be safe as long as they do not touch any metal. a. T b. F 81. The energy a charge possesses by virtue of its location is called electrical potential energy a. T b. F 82. The unit of electrical potential energy is the joule. a. T b. F 83. Force vectors always move away from positive charges a. T b. F Multiple Choice 84. How many different kinds of forces would act on a proton placed in both an electric field and a gravitational field? a. One b. Two c. Three d. Four e. None 85. An electric field has a. Magnitude b. Direction c. Both of the above are correct d. The answer is not here 86. The direction of electric field lines shows a. The strength of the field b. The direction of the force on a test positive charge c. The size of the field d. All of the above are correct

16 87. Suppose a hollow metal sphere has a large negative charge on it. The electric field strength inside the sphere is a. Weak and positive b. Large and negative c. Weak and negative d. Zero 88. Suppose you touch a negatively charged object to a metal sphere so that the electrons move from the charged object onto the sphere. After separation of the charged object, electrons on the sphere will be a. Located at the spot where the object touched the sphere b. Bunched together randomly c. Evenly distributed on the sphere d. Fly off the sphere 89. Electrical potential energy is the energy a charged object has because of its a. Position b. Size c. Motion d. Momentum 90. 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. Increases b. Decreases c. Stays the same 91. If two negative charges are held close together and then released, the charges will a. Accelerate toward each other b. Accelerate away from each other c. Move at a constant speed away from each other d. Not move at all 92. Which of the following has the potential to move first? a. Proton b. Neutron c. Electron d. Quark

17 93. If an alpha particle with two positive charges and a less massive electron come close together, both will experience an increase in a. Force b. Speed c. Acceleration d. All of the above are correct e. The answer is not here 94. Which of the following best explains why you are safe in an airplane in flight if struck by lightning? a. The charge will spread out around the aircraft and not inside b. There is no ground for the charges to follow c. You are not safe in an airplane! It will crash! d. Only A and B are correct e. There is no correct answer here