# exam2-F04 - Name Exam#2 Physics I Fall 2004 If you would...

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Name _______________________________________________________________________ Exam #2 Physics I Fall 2004 If you would like to get credit for having taken this exam, we need your name (printed clearly) at the top and section number below. Your name should be at the top of every page. Section # _____ 1 M/R 8-10 (Bedrosian) _____ 2 M/R 10-12 (Wetzel) _____ 3 M/R 12-2 (Wetzel) _____ 5 T/F 10-12 (Bedrosian) _____ 6 T/F 12-2 (Cummings) _____ 7 T/F 2-4 (Cummings) _____ 8 M/R 2-4 (Schroeder) _____ 10 M/R 12-2 (Bedrosian) You may not unstaple this exam. Only work written on the same page as the question will be graded. Cheating on this exam will result in an F in the course. 1 Questions Value Score Part A 24 B-1 16 B-2 24 C-1 16 C-2 20 Total 100

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Name _______________________________________________________________________ On this exam, please neglect any relativistic and/or quantum mechanical effects. If you don’t know what those are, don’t worry, we are neglecting them! On all multiple-choice questions, choose the best answer in the context of what we have learned in Physics I. On graphing and numerical questions, show all work to receive credit. Part A – Multiple Choice – 24 Points Total (6 at 4 Points Each) Write your choice(s) on the line to the left of the question number. ______ 1. What principle of physics is expressed by equation 22 on the Formula Sheet? A. Conservation of Momentum. B. The Impulse-Momentum Theorem. C. Conservation of Mechanical Energy. D. The Work-Kinetic Energy Theorem. ______ 2. Which of the following conditions are necessary to solve a problem correctly using equations 45a and 45b on the Formula Sheet? Put all that apply or “0” if none. A. Two objects collide. B. All velocities are in one dimension only (+ or –). C. Total forces external to the system sum to zero or are negligible during the event. D. The total kinetic energy of the system before the event is equal to the total kinetic energy of the system after the event. ______ 3. Two drivers with the same mass have a drag race in two electric cars, A and B. Both cars experience the same net force as a function of time as shown in the graph below and both start from rest at t = 0. The mass of car A is greater than the mass of car B. Which car has greater kinetic energy at t = 20 seconds?
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exam2-F04 - Name Exam#2 Physics I Fall 2004 If you would...

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