Warming up on light

This assignment is due before 9 AM, Monday, November 27th, 2000.

Please type LAST name:

Please type your Student ID Number:

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 5 points each towards your "Homework and Web Assignments" score (250 points total).




1.

The picture shows a pencil hanging vertically into a tank of water. Clearly, the part of the pencil in the water (the bottom) appears offset from the part that is not in the water. Please explain why this happens.



2.

Estimate the time it takes for light to do one lap in a swimming pool (underwater).





3.


Total internal reflection can occur when light traveling in a medium reaches a boundary

with a medium having a lower index of refraction

with a medium having a higher index of refraction

with any other medium

that is smooth enough

None of the above

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.

I received no help from anyone on this assignment.



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