PHYSICS FINAL Study Guide

1. ___________energy is associated with an object in motion.
2. How long does it take a 2400 watt motor to do 25 J of work? __________
3. A 51 N force is used to push a box 5510 m.  How much work was done? __________
4. A motor that does 745 J of work in 45 seconds produces ____________ of power?
5. The _______________is the unit for work.
6. What force is required to stop a 1500 kg vehicle moving at 8 m/s over a distance of 100m?
7. One joule of work accomplished in one second produces ________________.
8. If 1400 J of work is done by a 60 N force pushing a box, how far did the box move? __________
9. __________energy is the type stored in a compressed spring.
10. To calculate work, the force and the distance moved must be in __________direction.
11. What is the efficiency of a machine that takes in 2000 J of work and produces 100 J? __________
12. The ____________is the time it takes for one wavelength.
13. Sound waves are examples of _________________waves.
14. ___________energy is associated with an object due to its position relative to the Earth.
15. ___________is the rate at which work is done.
16. When you put 100 J of work into a machine with 30% efficiency, how far can it move a 40 N box? _____
17. The conversion factor for mass changing into energy is ________________. 
18. A 5 kg object moving at 33 m/s comes to a stop.  How much work was done to make it stop? __________
19. The highest point on a wave is the __________________.
20. Multiplying the wavelength times the frequency of a wave gives you the _________________.
21. Two notes that differ by one octave have pitches in the ratio of _________________.
22. The unit for frequency is the __________________.
23. A wave with a frequency of 875 Hz has a period of _________________.
24. When 2 or more waves interact, it is called ___________________.
25. Two sound are combined and a softer, lower sound is produced.  This is an example of __________.
26. The law of reflection states that the angle of incidence is _____________the angle of reflection.
27. The vibration of a guitar string is an example of a _____________wave.
28. Mechanical waves require _______________________to move through.
29. The wavelength of a wave moving at 200 m/s with a period of 12.5 seconds is _____________.
30.  What is the intensity you receive when 550 w of sound are produced 27 m away? __________
31. The ear and brain perceive the amplitude as _________________.
32. The relative intensity of a sound pressure wave is measured on a scale of ______________. 
33. The _____________is the change in frequency of sound caused by motion.
34. The velocity of sound in air at sea level at room temperature (20 degrees C) is ______________.
35. The velocity of sound equals its wavelength times the _______________.
36. The frequency of a sound wave is called its ______________.
37. How fast does a 880 Hz tone with a wavelength of 20 m travel? __________
38. The shape of the throat and mouth cavity determine the _____________produced by the human voice.
39. An air column can resonate with a sound source, __________the loudness of the source.
40. What is the wavelength of a 400 Hz tone at room temperature? __________
41. The timbre of a musical instrument depends on the number and intensity of the ______it produces.
42. Brightness ______________________________the distance from the source.
43. ____________light consists of light waves in a single plane.
44. A ___________object absorbs all colors that fall upon it.
45. _________light is a mixture of ALL colors of light.
46. Which frequency is inaudible to humans? __________
47. ______________is not a primary light color.
48. Sound will travel fastest through ______________________.
49. When complementary lights combine, they produce _________________.
50. An image the is produced behind a mirror is known as a _________image.
51. What is the magnification of a 20 cm tall object that produces a 3 cm tall image? __________
52. Convex mirrors always produce a _______________image.
53. The speed of microwaves is _________________.
54. ______________is created when images are focused behind the retina and close objects are blurry.
55. Refraction is explained by ___________________.
56. Light in dry ice (n=1.5) will ______________as it moves into isopropyl alcohol (n=1.9).
57. Refraction is caused by a change in the _________________of light.
58. Concave mirrors focus light to form ____________images in front of the mirror.
59. Imaged produced by a concave mirror ________________.
60. A divergent lens will produce a __________image.
61. _________________are used to carry light over long distances.
62. Electric charges can move freely in ____________.
63.A charge of -34 C will ________________on a charge of  50 C that is 4 m away. 
64. Rainbows are caused by ___________________.
65. Focusing different colors of light at different distances produces ______________.
66. Total internal reflection is caused when the angle of incidence is _____________ the critical angle.
67. The fundamental unit of charge on an electron is ________________.
68. Charge is measured in _________________.
69. Glass and rubber are examples of _______________.
70. An insulator can receive a surface charge by ____________________. 
71. The number of field lines are proportional to the magnitude of the ________ strength.
72. __________convert chemical energy to electrical energy.
73. Copper and gold are examples of _______________.
74. What is the distance between two 0.012 C charges that produce a force of 6 N? __________
75. A ___________current is produced when 400 C of charge goes by in 2 seconds.
76. A solute that can conduct electricity is known as a/an _________________.
77. An electric field exists around _________________object.
78. In electrostatic equilibrium, excess charge is on the conductor's ___________.
79. What is the electric field created by a 40C charge that is 0.9 m away? __________
80. The units for resistance are _____________.
81. A/An _______________is a charged atom.
82. ___________current contains charges that move in a single direction.
83. Electric companies measure energy consumption in _______________.
84. A/An _____________is when there is a break in the circuit and current does not flow.
85. A wire will have more resistance if the temperature _______________.
86. ___________convert mechanical energy to electrical energy.
87. Current is measured in ________________.
88. How much power is generated from a 7 A current passing through 84 ohms of resistance? ________
89. What is the potential difference in a 2.4 A circuit that generates 12 watts of power? __________
90. A/An ______________when a circuit path contains little or no resistance; can cause damage/fire.
91. If the internal resistance of a battery is neglected, the emf can be considered equal to the  ________.
92. The equivalent resistance for resistors in series is equal to the __________of the individual resistors.
93. A/An ___________circuit makes a continuous loop with no interruptions; electricity can flow.
94. If one path in a parallel circuit is opened, the current in the other paths _____________.
95. If the resistors in parallel are equal, the _______________is evenly divided.
96. Resistors in parallel have the same _______________across them.
97. Most electrical devices use _______________resistor circuits.
98. Schematic diagrams use standardized _________to summarize the contents of electric circuits.
99. A/An _____________is something in the circuit that uses up electricity.
100. A north pole of a magnet will _________the north pole of another magnet.
101. What is the magnetic field strength of a 630 N force with 4 A of current in a 0.6m length of wire? ____
102. What is the resistance of the following resistors in series … 6 ?, 7 ?, 22 ?, 5 ?? __________ 
103. As the length of a wire gets longer, what happens to the magnetic induction produced? _________
104. What is the current in a 11m wire that has a force of 87 N and 0.25 T magnetic field? __________
105. The magnetic north pole is in ___________.
106. A magnetic field exists around any wire that carries a __________.
107. The direction of any magnetic field is defined as the direction the __________would point.
108 Magnets have ________and ________poles.
109. The direction of the current in the wire is ____________________the wire.
110. A ________________is a group of atoms whose magnetic fields are aligned.