2nd Semester Recall - produced using the Fling the Teacher Generator from ContentGenerator.net 2nd Semester Recall

1. How can the average atomic mass of an element be determined?

2. Clothing that appears to be red in color when we view it really ______ the red wavelengths.

3. Who is considered to be the "father of modern optics"?

4. The electromagnetic spectrum is an arrangement of waves according to what?

5. A pneumonic device that many use to help remember the wavelengths of visible light in the correct order.

6. What is the Law of Reflection?

7. What causes a beam of light to become dimmer?

8. What interaction of light with matter causes it to change direction?

9. Why is the sky blue?

10. Is the speed of light slower or faster in a vacuum or through matter?

11. Give two examples of natural pigments.

12. What determines whether a material will be magnetic or not?

13. Which of the following are known to be natural magnets with very strong magnetic properties?

14. What device can convert mechanical energy to electrical energy?

15. What is a device that increases or decreases the voltage of alternating current?

16. What does the LED found in remote control devices do?

17. What process is used when an impurity is added to a semicondutor?

18. Why did ENIAC have to be cooled?

19. Why are modern computers much smaller than earlier computers?

20. What is the substance through which a wave can travel called?

21. Why does a wave move toward shore, but a leaf floating does not?

22. What kind of waves require a medium through which to pass?

23. How are surface waves formed?

24. Which property is the most closely related to the amplitude of waves?

25. Which carries more energy, a wave with a larger or smaller amplitude?

26. What unit is used to measure frequency?

27. According Ptolemy, Plato, and Socrates which of the following is correct?

28. How are the positions of the electric and magnetic field and the direction of wave motion related to each other?

29. What is the speed of light in the near vaccuum of space?

30. How long does it take for light from the earth to reach the moon if the distance is 384,000 km?

31. What kind of radio waves are used by television stations to transmit sound?

32. What type of radio waves do television stations use to transmit the picture?

33. Through what device does television stations send signals to your area?

34. What color are the longest wavelengths of visible light?

35. What is the major difference between the regular ocean waves and Tsunamis?

36. What are longitudinal waves that are caused by vibrations and travel through a medium?

37. When sound waves leave the source, they travel in what direction?

38. As a person ages their _______continues to grow.

39. What part of our hearing system can be damaged by loud sounds?

40. How can you protect yourself from tinnitus?

41. What happens to the speed of sound as the medium cools?

42. What amazing, unbeleivable, nearly perfect individual broke the sound barrier in January of 1947?

43. The sound made by a dog whistle ____.

44. What is the bouncing back of a sound wave after hitting a barrier called?

45. What is the use of reflected sounds by animals such as bats and dolphins?

46. What is meant by "red shift"?

47. What results when several pitches mix together forming interference?

48. Becquerel discovered that a fluorescent mineral made an image on a photographic plate eventhough there was no ________.

49. What is the energy formed by particles and rays emitted by certain atoms?

50. What is the spontaneous release of electrons or positrons from the nucleus of an atom?

51. What is the sum of the number of protons and neutrons in an atom?

52. What are atoms with the same number of protons but a different number of neutrons?

53. What is the type of nuclear radiation that does the most damage inside living tissue?

54. What is the length of time that is required for half of the nuclei of a sample of a radioactive element to decay?

55. The age of dinosaur fossils cannot be determined using C-14, but _______ could be used.

56. What is the major fuel used by nuclear power plants?

57. What steps must occur before nuclear fission can be forced to take place?

58. What is the process of larger nuclei splitting into 2 smaller nuclei and releasing a tremendous amount of energy?

59. Why is it true that in nuclear fission that the total mass of the products is less than the mass of the original reactants?

60. What is a continuous series of nuclear fission reactions?

61. What are the main problems with using nuclear fission to generate electrical energy?

62. If you have equal masses of a substance in each of the three familar states and each at the same temperature, which state will have the least thermal energy?

63. What changes when a change of state occurs?

64. Why does the temperature of a substance remain constant when the substance undergoes a change of state?

65. How many Joules is equal to one Calorie?

66. What is the material that reduces the amount of thermal energy required to heat or cool a building?

67. What is a heat engine?

68. Temperature is the measure of what property of an object's particles?

69. How does the amount of a substance affect its temperature?

70. Why are mercury or alcohol used in thermometers?

71. What equation would you use to convert temperature in degrees Fahrenheit to degrees Celsius?

72. How does the bimetallic strip in a thermostat work?

73. What occurs in the pavement on a bridge in the summer when temperatures increase?

74. Under what conditions can heat pass between two objects?

75. If a large kettle of soup and a small bowl of soup have the same temperature, what do you know about the thermal energy of the containers of soup?

76. Which of these is not a form of thermal energy transfer?

77. What is the rate at which a substance conducts thermal energy?

78. What is the circular motion of a liquid or gas due to difference in density because of different temperatures?

79. What is specific heat?

80. An air condition is a cooling system that transfers ___.

81. Why does the back of a refrigerator feel warm?

82. How can you tell if an object is in motion?

83. Why do birds not end up at the same destination if they are flying at the same speed at all times?

84. What is the difference between velocity and speed?

85. How can you recognize acceleration on a graph?

86. Give 3 objects on which you may exert force when you are doing schoolwork.

87. When all forces acting on an object are combinrd, what is the result?

88. How does net force apply to two students moving a piano when both are exerting a force in the same direction?

89. What are two factors that affect friction?

90. When charges continually shift from one direction and then the other, it is called ___.

91. What happens to electric current if voltage becomes larger?

92. In what unit is resistance expressed?

93. What is the chemical mixture in a cell called?

94. Power companies use _____ to determine how much energy you have consumed.

95. Which type of kinetic friction is usually greater?

96. What is static friction?

97. What happens to the gravitational force when two objects move away from each other?

98. What are the main problems with using nuclear fission to generate electrical energy?

99. Where does nuclear fusion naturally occur?

100. What is the unbalanced force that slows down sliding desks and moving cars?

101. How can a car with a large mass have the same acceleration as a car with a small mass?

102. What is the identity of any substance that can flow and take the shape of its container?

103. What is the amount of force exerted per unit area called?

104. What is the SI unit for pressure?

105. What happens when pressure is lower inside the lungs than outside the lungs?

106. What is the upward force that fluids exerts on all matter?

107. Why does an ice cube float in water?

108. What two things must happen for work to be done on an object?

109. When there is a change in the size of the force, what other factor must also change?

110. When a machine has a mechanical advantage of one, how does the output force and the input force compare?

111. Why aren't machines 100% efficient?

112. What do 1st class levers always change the direction of?

113. Why is the mechanical efficiency of compound machines lower than most simple machines?

114. What is the order of softest to hardest, efficient, and less polluting coal?

115. How does the kinetic energy at the bottom of the first hill on a roller coaster compare to the GPE at the top of the first hill?

116. What is created when a group of objects only transfer energy to each other?

117. What 3 types of energy of a roller coaster are added to equal the original GPE?

118. What is cellular respiration?

119. What is the organic matter that can be burned to release energy?

120. What energy does the "drinking bird" use to evaporate water from its head?

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