[Home]
[Lessons] [Review]
[Search] [Links]
This web site is designed and maintained by Science Joy Wagon and may
not be reproduced or redistributed without written permission from Science Joy Wagon.
Contact with comments.
|
Physics Review Question Unit: Electricity and Magnetism Year: 1989 Question#: 33 Question: A glass rod is given a positive charge by rubbing it with silk. The rod has become positive by (1 ) gaining electrons (2 ) gaining protons (3 ) losing electrons (4 ) losing protons What is this question really asking? Explanation by: Melissa H. [ Return to question menu ] Answer 1 gaining electrons Incorrect This answer is incorrect because if the object gained electrons, it would become a negative charge not a postive charge. return to top Answer 2 gaining protons Incorrect This answer is incorrect because an object cannot gain protons. It can only gain electrons. Protons are stationaey within a given atom and generally are not free to move. return to top Answer 3 losing electrons Correct This answer is correct because an object will become positive by losing electrons. This is because electrons have a negative charge, so if they are lost, the object will then lose its negative charges. Electrons are essentially the only part of an atom that are moveable and are known to "jump ship" to join other atoms. return to top Answer 4 losing protons Incorrect This answer is incorrect because an object cannot lose protons. It can only lose electrons. return to top What's this question really asking? This question is really asking if you know how charges get transfered. return to top |
|
This web site is designed and maintained by Science Joy Wagon and may
not be reproduced or redistributed without written permission from Science Joy Wagon. |