Phys1120 exam2_blank - PHYSICS 1120 SECOND MIDTERM Name...

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PHYSICS 1120 SECOND MIDTERM Name_________________________________ Student ID #__________________________________________________ You will lose 1 point on this exam if you do not correctly enter your Student ID number onto the bubble sheet!!! Section number or Section Time:___________________________________ Circle your TA’s name: Matt Aitken Maya Fabrikant Nathan Hinkley Sunita Kannan Nathan Morrison John Papaioannou Ron Pepino Exam Version 0001 Please do not open the exam until you are asked to. Your exam should have 11 pages, numbered E2.1 thru E2.11 This exam consists of 15 multiple choice questions, worth 5 points each, and a long-answer section worth 25 points, for a total of 100 points. Write your answers in the space provided on each page for the written question. Use the back of the page if needed. Circle the correct letter for the multiple choice questions. SHOW YOUR WORK ON THE WRITTEN QUESTIONS. Full credit will be given only for the correct answer accompanied by your reasoning. PLEASE!! 1. Print your name, your student Identification Number on the page above. 2. Circle your TA’s name and write the time or Section number above. 3. Bubble your name, Student ID, and exam version number on the bubble sheet provided. 4. You do not need to bubble in the date or your gender. By handing in this exam, you agree to the following statement: "On my honor, as a University of Colorado Student, I have neither given nor received unauthorized assistance on this work" Signature______________________________________________ Possibly useful information: k = 9.0x10 9 Nm 2 /C 2 , e = 1.6x10 -19 C, ε 0 = 8.85x10 -12 C 2 /(Nm 2 ) m proton = 1.67x10 -27 kg , m electron = 9.11x10 -31 kg Good luck! Spring 2010 E2.1 Second Midterm
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Circle the closest answer and Bubble in questions 1-15 ON YOUR BUBBLE SHEET! 1. Two test charges are brought from r= into the vicinity of a charge +Q 0 . In the first situation, a charge of -q is brought to a point A, distance of r from the charge. In the second situation, a charge of -2q is brought to Point B, a distance of 2r from the charge. Which of the following statements is true about the potential (V) and the potential energy (U) of the test charges at points A and B in these two situations. Assume that V=0 at r= A) V A > V B , U A = U B B) V A = V B , U A = U B C) V A < V B , U A = U B D) V A = V B , U A > U B E) V A = V B , U A < U B 2) Two identical charges of +Q are fixed in space, as shown to the right. What is the magnitude of the voltage and the magnitude of the electric field at the point that is
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This note was uploaded on 09/23/2010 for the course PHYSICS 1120 taught by Professor Holland during the Spring '09 term at University of Colorado Denver.

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Phys1120 exam2_blank - PHYSICS 1120 SECOND MIDTERM Name...

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