<p> Name: ______Per: ______Date ______</p><p>Units: 1. Unit for speed 2. Unit of intensity/loudness 3. Unit for frequency of a wave 4. Unit of power 5. Unit of force 6. Unit of acceleration 7. Unit of energy</p><p>Measurement 8. The unit of length that most nearly matches the width of your finger is the:</p><p>9. List the measurement prefixes in order from smallest to largest.</p><p>10. What are the basic units to measure length, volume, and mass?</p><p>11. How many centimeters are there in a stick 3 meters long?</p><p>12. What is the mass shown on the triple beam balance?</p><p>0 10 20 30 40 50 60 70 </p><p>0 100 200 300 0 </p><p>0 1 2 3 4 5 6 7 </p><p>Motion: Speed Velocity, Acceleration 13. Gravity causes things to fall at the same rate (ignore air resistance). True or False?</p><p>14. What is speed?</p><p>15. What is the speed of a rocket that travels 2,000 meters in 4 seconds?</p><p>16. If an automobile travels at 25 m/sec for 50 seconds, how far has the car traveled?</p><p>17. A dragster accelerates from rest to 60 m/sec in 3 seconds. What is the acceleration of the dragster? Name: ______Per: ______Date ______</p><p>18. The acceleration due to gravity is approximately 10 m/sec2. If a penny is dropped from the thirteenth floor of a building, ignoring air resistance, after falling for 8 seconds what will the speed of the penny be?</p><p>19. Use the graph to predict the speed of the car when the car is at 50 cm.</p><p>20. At which point on the graph is the object standing still? When is it traveling the fastest?</p><p>21. The graph showing the position of a car is given below, how far did the car travel between 1 and 2 seconds? Between 2 and 4 seconds? Total?</p><p>22. The rate of acceleration due to gravity on earth is______. 23. In this speed vs. time graph, what is the object doing at each point? A. </p><p>B. </p><p>C.</p><p>Forces: Newton’s Laws of Motion, Momentum Name: ______Per: ______Date ______24. Newton’s 1st Law of Motion is also called the Law of ______. 25. Compared to your weight and mass on Earth, on the Moon, your weight would be ______and your mass would be ______. (use words: greater, less, the same) 26. Objects tend to resist changes in motion. This property is called ______. 27. As you climb up Mount Everest and you get farther away from the center of the Earth, your ______decreases and your ______stays the same.</p><p>28. What is the mass of a chair that weighs 49 newtons? (Fw= mg)</p><p>29. A bulldozer pushes a 5000-kilogram pile of dirt with a net force of 5,000 newtons. What is the acceleration of the pile?</p><p>30. A 0.50-kilogram baseball accelerates at 50 m/sec2. How large is the force required to cause an acceleration of this size?</p><p>31. What is the momentum of a 2.5 -kilogram bowling ball moving at 10 m/sec?</p><p>32. If a force of 100 N was exerted on an object and no work was done, what motion did the object have?</p><p>33. A 800-kilogram Volkswagen and a 1500-kilogram semi truck are both traveling at 27 m/sec. Which object has more momentum? Why?</p><p>34. The relationship between force, mass, and acceleration is explained by Newton’s ______Law. 35. A rocket blasts off from earth. This is an example of Newton’s ______Law. 36. Forces must be ______to cause a change in motion.</p><p>Machines, Mechanical Systems, Work, Power</p><p>42. Calculate the work needed to lift a book weighing 7 newtons a height of 3 meters.</p><p>Energy Please define… 46. Gravitational potential energy: 47. Kinetic energy: 48. Thermal energy: 49. Chemical energy: Name: ______Per: ______Date ______50. Energy can be defined as the ability to do ______. 51. Energy is measured in______. 52. When a ball is dropped from a tall building, potential energy converts to kinetic energy. As this happens, its speed will ______. 53. Compare the kinetic energy of the following: a truck going 20 km/hr or a bird flying 20 km/hr. Are they the same? Why or why not?</p><p>54. A marble rolls along the track below with no friction. Where is the GPE the greatest? Where is the KE the greatest? The speed will be greater at the ______of a hill, and slower at the ______.</p><p>55. A 10 kg box is held 5 m above the ground. What is the GPE of the box?</p><p>56. Moving electrical charges produce ______. 57. A change in energy from one form to another is called a ______. Heating and Cooling Identify these common temperatures… 58. 37 oC 59. 0oC 60. 25oC 61. 212oF 62. 0 K Define… 63. Conduction: 64. Convection: 65. Radiation: 66. Reflectors: 67. Insulators: 68. Temperature:</p><p>69. Average normal human body temperature measured in degrees Fahrenheit is ______. 70. What is heat? 71. Water boils at a temperature of ______oF, or ______oC. 72. What are the common units of heat energy? (there are three)</p><p>73. Which of the following will have the greatest amount of thermal energy: large and cold, small and cold, large and warm, small and warm? 74. If you hold a can of soda just removed from the refrigerator in your hand, heat will go from ______to ______. Name: ______Per: ______Date ______75. Hot air rises up a chimney due to ______. 76. Conduction is the transfer of thermal energy due to______. 77. Of solid, liquid, and gas, which is generally the worst conductor? Which is generally the best? Explain both answers.</p><p>78. If I mix equal parts of ice (at 0 oC) and boiling water, what will be the equilibrium temperature? 79. Provide some examples of good insulators.</p><p>80. The type of heat transfer called convection happens as a result of…</p><p>81. The type of heat transfer which requires no matter for it to occur is called ______. Specific Heats of Some Common Substances</p><p>Substance Specific Heat in calories/gram °Celsius water 1.00 ethanol 0.584 aluminum 0.215 gold 0.031 Table 9-1A 82. The temperature of 100 grams of gold is increased by 5° Celsius. Based on Table 9-1A, the increase in the thermal energy of the gold is:</p><p>83. Suppose you add the same amount of thermal energy to each of the following substances. Based on Table 9- 1A, which would undergo the smallest change in temperature? Which would have the greatest?</p><p>84. Most heat loss in a mechanical system is due to ______. This can be reduced by using ______, ______, or ______.</p><p>Waves and Sounds Identify the wave behavior for the following… 85. White noise 86. Light spreading out after it goes through a slit 87. Bending of light as it passes through a lens 88. Echo Label the parts of the transverse wave: 89. A 90. B 91. C Name: ______Per: ______Date ______92. D 93. E</p><p>Label the parts of the longitudinal wave: 94. A 95. B 96. C</p><p>97. In the picture below, the person sees the image of the fish in a different location than the actual fish. This happens because of ______</p><p>Figure 4.1 98. Which of the waves in Figure 4.1 has the greatest frequency? Which has the greatest amplitude?</p><p>99. The wavelength of a wave is defined as:</p><p>100. Sound waves are always ______and light is always ______.</p><p>101. The wave shown in the diagram above is an example of what type of wave? How do you know? Name: ______Per: ______Date ______</p><p>102. In the space below, draw two waves that would have the following types of interference: Constructive Destructive</p><p>104. What has to happen to have constructive interference? For destructive interference?</p><p>105. As frequency increases, what happens to wavelength?</p><p>107. A decibel is a unit used to measure what? 108. The word ultrasonic means that the sound has too high a ______for humans to hear.</p><p>Light, Color, Optics Identify the electromagnetic wave that goes with each example. 109. ______ROY G BIV 110. ______Cancer Treatment 111. ______Communications 112. ______Look for broken bones 113. ______Used in tanning beds 114. ______Night vision binoculars or goggles 115. Please list all electromagnetic energy invisible to the human eye.</p><p>116. Of the waves listed, the one with the highest frequency is ______radiation. 117. Sunscreen protects your skin from sunburn. For sunscreen to be effective, it must block or absorb what?</p><p>118. The primary pigments used in color printers are:</p><p>119. If white light falls upon a piece of red cloth, the cloth absorbs______and reflects ______. 120. A mirror changes the direction of light through the process of ______. 121. What is a laser?</p><p>122. All electromagnetic waves have the same ______. 123. A radio wave has a wavelength of 3.5 m and travels at the speed of light (300,000,000 m/s). What is the frequency of the radio wave? Name: ______Per: ______Date ______</p><p>124. A light ray strikes a lens parallel to the axis of the lens. Which of the following rays best represents the path of the light ray as it leaves the lens?</p><p>Electricity, Circuits, Magnetis What is the unit for each? 125. _____ Current 126. _____ Resistance 127. _____ Voltage (Potential Difference) 128. _____ Power</p><p>What do these symbols stand for? 129. R______130. I______131. V______</p><p>132. Negative electric charges ______positive charges and ______negative charges. 133. An open circuit is off. True or False? 134. In a ______circuit, electrons have more than one path to follow. 135. When electrons move back and forth reversing their direction regularly, this current is called ______current. 136. What are the safety devices that measure or react to specific levels of current? (there are three)</p><p>137. A volt is the unit of measurement for ______. 138. In an electrical circuit, what causes the energy for the “push” of voltage?</p><p>139. What is the voltage drop across each resistor in the circuit below? Name: ______Per: ______Date ______</p><p>140. In the circuit below, 3 amperes of current passes through the light bulb. The resistance of the light bulb is 1.5 ohms. What is the voltage of the battery?</p><p>141. In an electrical circuit, the term current refers to the ______of electrons. 142. The flow of electrons along a conductor, which is measured in amps, is called ______. 143. What are two examples that would make a good comparison for a resistor?</p><p>144. Ohm’s Law states that as resistance increases, the current ______. 145. Calculate the total resistance in the circuit below.</p><p>146. Power describes the rate of ______. Power is calculated in a circuit by multiplying voltage times______. 147. If a microwave draws 12.0 amps of current when plugged into a 120-volt outlet, what is its power rating?</p><p>148. One kilowatt is equal to how many watts? 149. When current flows through a coil of wire around a core of iron, you have an ______. 150. Three ways you can increase the strength of an electromagnet are:</p>