...Electric Fields

This assignment is due before 8 AM, Wednesday, January 14, 1998.

Please type LAST name:

Please type your LAST NAME and LAST FOUR SS# digits (eg: Smith3256):

I received no help from anyone on this assignment.

The following three questions refer to the material you were to read in preparation to the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT HOMEWORK button at the bottom of this page.

WarmUp questions are worth 4 points each towards your "Homework and Web Assignments" score (250 points total).

1.

Can there be an electric field at a point where there is no charge? Can there be a charge at a place where there is no field? Please write a one or two sentence answer to each of these questions.

2.

Let's say you are holding two tennis balls (one in each hand) and let's say these balls each have a charge Q. Estimate the maximum value of Q so that the balls do not repel each other so hard that you can't hold on to them.

3.

An insulator is a material that ...
Cannot feel an electrical force.
Is not penetrated by electric fields.
Cannot carry an electric charge.
Two of the above choices are correct.
None the above choices are correct.

Below is a space for your thoughts, including general comments about today's assignment. What was hard or confusing (or cool)? What would you like to spend extra time on in class? Do you see how this subject fits in with the others we have discussed?

You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.