ELECTROSTATICS / ELECTRICITY TEST ON MONDAY, DECEMBER 18:
Be prepared for a test question on the following:
For the devices (listed below) which operate on the principles of electricity or electrostatics, describe how each works.   Choices on the test will include some of:
- electrostatic precipitator (or electronic air cleaner)
- lightning cloud
- Dry cell battery (how does it differ from a wet cell?)
- Lightining rods to protect buildings.
I will review your understanding on these concepts during Thursday's review.   I will check your completion of these on Thursday but these will not be handed in.