Physics II first midterm, Exams of Physics

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Vel om Name: Student ID ID: A Ph212 Winter 2019 Midterm 1 Instructions Record the exam ID (e.g. A, B, C) on your Scantron eNo devices except for standalone calculators allowed. One sheet of notes allowed. eScantrons must be filled in with pencil. eRemove all items from desk except for allowed materials. eYou are not allowed to leave the room during the exam. eYou may write on the exam. eMake sure name and exam ID are on Scantron. eTurn in both Scantron and exam when finished. Good luck! Multiple Choice: Identify the choice that best answers the question. The points for each multiple choice question are marked. Note the questions increase in value towards end of exam. 1. (1 pt) Which of the following statements about conductors and insulators is NOT correct ? a, Charges can move freely in conductors. 3 Charges can move freely in insulators. c. In conductors, one or more of the outer electrons from an atom is no longer bounded to the atom. d. In insulators, all the electrons from an atom are bounded to the atom. e. Charges in both conductors and insulators can become polarized, i.e., one end has charges of one sign and the other end has charges of opposite sign. 2. (1 pt) If you bring a positively charged insulator near two uncharged metallic spheres that are in contact and then separate the spheres, the sphere on the right will have tT é P heck Lebasy a + Cheep n a. no net charge. ® a positive charge. c. a bo han negative charge. d. either a positive or negative charge. e. None of these is correct.