2006 Exam 1

# 2006 Exam 1 - Physics 2220.004 Spring 2006 Examination 1...

This preview shows pages 1–3. Sign up to view the full content.

Physics 2220.004 Spring 2006 Examination 1 Name: This test consists of 7 multiple-choice questions and 5 free-response problems, for a total of 110 points (so that 10 points of extra credit are possible). To receive credit for the free-response problems, you must show all of your work on the pages provided. Don’t hand in any extra sheets or other paper. You may also earn partial credit for the some of the multiple choice problems if you show your work. Suggested procedure for solving the problems: 1. Read each problem carefully and make sure you know what is being asked before starting the problem. 2. Draw a figure for the problem. 3. List the parameters given. 4. Write down the equations to be used. 5. Solve for the answer symbolically. 6. Substitute numbers into you final equation and circle your answer. WORK THE EASY PROBLEMS FIRST!!

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1. (6 points) Three balls made of insulating material are suspended by insulating threads from a support. We know that ball X is positively charged. When ball X is brought near balls Y and Z without touching them, it attracts Y and repels Z. We can conclude that a) Y has a negative charge. b) Z has a negative charge. c) Y has a positive charge. d) Z is neutral (has no net charge.) e) Y is negatively charged or neutral (has no net charge.) 2. (8 points) A particle (mass = 5.0 g, charge = 40 mC) moves in a region of space where the electric field is uniform and is given by E x = 2.5 N/C, E y = E z = 0. If the
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/07/2010 for the course PHYS 2220 taught by Professor Littler during the Spring '00 term at North Texas.

### Page1 / 9

2006 Exam 1 - Physics 2220.004 Spring 2006 Examination 1...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online