# 33.6: General Questions


1. Does light always travel in a straight path?

2. In general, when light travels from one medium to another, the light always changes ____________ (speed/direction) and may change ____________ (speed/direction).  Fill in the blanks.

3. If you see a sea shell in the ocean, and you are viewing it while standing in air on the beach, how should you adjust your aim?  Give specific alterations that should be made.  You may describe or sketch this.