1) Go to the following web site:
http://www.sciencejoywagon.com/physicszone/lesson/07elecst/eleclab/electrlb.htm
The site has information that is essential to your understanding of electrostatics, much of which will be the subject of your next quiz. Nothing to be handed in from this part of the lab but read, study and understand.
2) Go to the following web site:
http://physics.weber.edu/amiri/director/dcrfiles/electricity/pithBallS.dcr
Using the rubber rod and glass rod, explain (using electron flow and diagrams):
a) What happens when each rod is brought close to the pith ball; and
b) What happens when each rod touches the pith ball.
3) Go to the following web site:
http://www.shep.net/resources/curricular/physics/P30/Unit2/electroscope.html
Explain charge separation when a charged rod is brought close to an electroscope.
Explain charging by contact.
Explain charging by induction.
Explanations will be detailed and will use electron flow as the basis.
1) Open the following web page:
http://micro.magnet.fsu.edu/electromag/java/lightning/index.html
Many questions, particularly on your diploma exam, will be based on a real life situation or some naturally occurring phenomena. The physics of lightning has been used on several diploma exams, in-school tests, quizzes and some in-school unit exams. Although there are no formal questions to be answered for this part of the lab, it is important that you read, study and understand.
2) Open the following web pages:
http://www.sciencejoywagon.com/physicszone/lesson/07elecst/fieldint/efield.htm
and http://www.mrfizzix.com/utilitypage/dukes/electricfield/ElectricField.htm
Read through the information given about electrical fields, charges and test charges. No hand-in from this part of the lab, read, study and understand.
3) Open the following web page:
http://physics.ius.edu/~kyle/physlets/electrostatics/electrostatics.html
Do the 10 electrostatics questions.