P114-Morning –2011
Due July 29, 2011
Team #____________
Member #1_____________________
Member #2_____________________
Member
#3_____________________
Member #4_____________________
-Only
members with their names on this cover sheet will receive credits.
-Collaborations
between team members are encouraged; however one or two authors will be
responsible for one problem and may be asked to explain it.
-The
authors should present the solution on a blank sheet with their names on it. Submissions from a same team should be
stapled together
-Solutions
should include “self-explained” diagrams/sketches, with minimal wording. Neat
presentation will count toward the problem grading.
1.- Conductivity of solutions: in the experiment shown below, which solution would give the brightest light? Order them from brightest to dimmest: tap water, distill water, water with dissolved sugar, water with dissolved salt, water with vinegar. Include a detailed explanation using the terminologies we have introduced related to electricity.
2.- Electron momentum: Electrons have mass, describe an experiment that would visually confirm that electrons in motion can transfer momentum to physical objects such as a wheel with paddles.
3.- Gauss Law: explain how one can
be safe to lightning by staying inside a car