Second Semester Review

Waves, Sound, Light, Electricity, Special Relativity

 

Navigate to Answers for:

[ Questions #1-#16 | Questions #17-#32 | Questions #33-#48 | Questions #49-#66 | Questions #67-#88 ]

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

67. A neutral object would acquire a negative charge if it ____.

A. gained some atoms.

B. gained some electrons

C. gained some protons

D. lost some electrons

E. lost some neutrons

 

  

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

68. A neutral balloon is suspended from a string. A charged plastic golf tube is brought nearby. As a result, the balloon will be ____.

  1. attracted to the tube
  2. repelled by the tube.
  3. neither attracted to or repelled by the tube.
  4. either attracted or repelled, depending on whether the tube is + or - charged. 

 

 

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

69. A plastic tube is charged by rubbing it with fur. The plastic tube acquires a negative charge. This is evidence that ____.

  1. plastic molecules have a greater attraction for electrons than fur molecules
  2. fur molecules have a greater attraction for electrons than plastic molecules
  3. plastic is an insulator and fur is a conductor
  4. fur is an insulator and plastic is a conductor

    

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

70. In # 69, the tube became charged by _____.

A. friction

B. conduction

C. induction

D. grounding

 

  

 [ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

 

A negatively-charged balloon is brought next to two conducting cans that are touching each other as shown above (before). The balloon is closer to can #1 than it is to # 2. While the balloon is near, the cans are separated and the balloon is removed (after).

71. After the balloon is removed, can # 1 is _______.

A. positively-charged

B. negatively-charged

C. neutral

 

  

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

72. The process described above is called _______.

A. charging by friction

B. charging by conduction

C. charging by induction

D. grounding


Useful Web Links

Charging by Induction

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

 

73. Two spheres, made out of the same material are charged as shown in diagram 12. Sphere X is larger than Y. What will happen when the spheres are connected by a wire?

A. Electrons will flow from X to Y.

B. Protons will flow from X to Y.

C. Electrons will flow from Y to X.

D. Protons will flow from Y to X.

 

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

74. Charges will continue to flow (in diagram 12) until ____.

  1. the charge on X is the same as the charge on Y.
  2. the total amount of potential energy of the charges on X is the same as that on Y.
  3. Y has a larger number of excess charges than X.
  4. the charges on X are at the same electric potential as those on Y.
 

 

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

 

75. The resistors in circuit ____ are connected in series. 

  

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

76. What is the effective/equivalent resistance of circuit "A"?

A. 1/3 Ohm

B. 1 Ohm

C. 3 Ohm

D. 9 Ohm

E. 27 Ohm

AB. 81 Ohm

 

 

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

77. What is the effective/equivalent resistance of circuit "B"?

A. 1/3 Ohm

B. 1 Ohm

C. 3 Ohm

D. 9 Ohm

E. 27 Ohm

AB. 81 Ohm

  

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

78. In order to have the same effective / equivalent resistance in circuit "B" as in "A", each resistor in "B" would have to have a value of ___.

A. 1/3 Ohm

B. 1 Ohm

C. 3 Ohm

D. 9 Ohm

E. 27 Ohm

AB. 81 Ohm

AC. 243 W

 

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

79. What is the current through each resistor in circuit "A"?

A. 1/3 Amp

B. 1 Amp

C. 3 Amp

D. 6 Amp

E. 9 Amp

AB. 27 Amp

AC. 81 Amp

  

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

80. What is the current through each resistor in circuit "B"?

A. 1/3 Amp

B. 1 Amp

C. 3 Amp

D. 6 Amp

E. 9 Amp

AB. 27 Amp

AC. 81 Amp

 

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

81. What is the voltage drop across each resistor in circuit "A"?

A. 81 V

B. 27 V

C. 9 V

D. 3 V

E. 1 V

AB. 1/3 V

 

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

82. What is the voltage drop across each resistor in circuit "B"?

A. 81 V

B. 27 V

C. 9 V

D. 3 V

E. 1 V

AB. 1/3 V

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

83. At what rate is energy dissipated in circuit "B"?

A. 1/3 W

B. 1 W

C. 3 W

D. 9 W

E. 27 W

AB. 81 W

AC. 243 W

 

  

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

 

84. A woman standing on the ground sees a rocket ship move past her at 95% the speed of light. compared to when the rocket is at rest, the woman measures the rocket's length as:

A. longer.

B. shorter.

C. the same length.

  


Useful Web Links

Length Contraction

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

85. When an object is pushed to relativistic speeds, its mass is _____.

A. greater than at rest.

B. smaller than at rest.

C. the same as at rest.

 

  


Useful Web Links

Relativistic Mass

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

86. An astronaut traveling at 0.87c holds a 1-meter stick in her hand, moving forward in spear-like fashion. The astronaut sees the spear's length as _____.

A. 0.5 m

B. 0.87 m

C. 1 m

D. 1.25 m

E. 1.5 m

 

  


Useful Web Links

Length Contraction

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

87. A spaceship that is traveling very fast with respect to your frame of reference, fires a light beam that travels at speed c with respect to the spaceship. You measure the light beam's speed to be _____.

A. less than c

B. more than c

C. equal to c


Useful Web Links

Speed of light

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

88. According to the special theory of relativity, if you measure your own pulse while traveling at very high speeds, you would notice your pulse rate to ____.

A. increase

B. decrease

C. be the same as


Useful Web Links

Laws of physics are equally valid in all reference frames

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

 

 

Second Semester Exam - Questions Only

Second Semester Exam - Questions with Links

Navigate to Answers for:

[ Questions #1-#16 | Questions #17-#32 | Questions #33-#48 | Questions #49-#66 | Questions #67-#88 ]

[ #67 | #68 | #69 | #70 | #71 | #72 | #73 | #74 | #75 | #76 | #77 | #78 | #79 | #80 | #81 | #82 | #83 | #84 | #85 | #86 | #87 | #88 ]

 

 


Return to:

2nd Semester Review - Terms and Vocabulary Guideline

Physics Reviews Home Page
Physics 163 Home Page
GBS Physics Home Page


[ Course Calendars | Makeup Labs | Physics Classroom | Multimedia Physics Studios | The Quiz Room | Packet Solutions (P163) | Extra Credit | Reviews | P173 Internet Problems | Chem-Phys Internet Problems | P163 Projects | The Refrigerator | Miscellaneous Help | E-Mail Physics Teachers | Conceptual Physics | Physics 163 | Physics 173 | Chem - Phys | AP Physics | GBS Physics Home Page | GBS Science Home Page ]


Comments and suggestions can be sent by e-mail to David Smith.

This page last updated on May 28, 1999.