

Henderson's Regular
Physics Quizzes
(199798 School Year)
Suggestions for this week's quiz
(Unit 13 Quiz #3):
This week's quiz on Unit 13
material is tentatively scheduled for Friday, May 1. The
quiz will be a onepage quiz, covering both sides of a
single sheet of paper (or a little less). The equations for
Snell's law and n=c/v will be given; the equation for the
critical angle will not be given. Students will need
a protractor and ruler. Other than a calculator, no other
helps will be provided nor allowed. Students can
expect the following concepts, skills, and problemtypes to
be assessed on this quiz:
 Define refraction and describe
the cause of refraction; identify and describe the one
condition in which light will move from one medium to
another and not refract at the boundary.
 Use information about the two
media on each side of the boundary (e.g., information
about the optical density of, the index of refraction of
or the speed of light in the two medium) to predict
whether a light ray will bend towards or away from the
normal at the boundary of the two medium.
 Use Snell's law to determine
the angle of refraction at a boundary between two medium
(if given the indices of refraction and the angle of
incidence; similarly use Snell's law to solve for the
fourth parameter if given values of the other three
parameters in the equation; interpret the results of such
calculations to draw the refracted ray at the appropirate
angle.
 Describe the behavior of light
waves at a boundary (reflection, transmission and
refraction, etc) and the dependence of this behavior upon
the angle of incidence; define total internal reflection
and identify and discuss the two conditions under which
it occurs.
 Describe what the critical
angle is and be able to use index of refraction values to
calculate the critical angle for two given materials;
interpret the results of such calculations to construct a
incident ray (and corresponding refracted ray) at the
critical angle and other incident rays which undergo
total internal reflection.
 Define dispersion and describe
the conditions under which it is likely to be observed;
explain the cause of dispersion using both words and
diagrams.
 Identify and explain the causes
of various refraction and total internal reflection
phenomenon, including but not limited to dispersion by
prisms, rainbow formation, use of optical fibers, the
sprakling of diamonds, the lengthening of days,
mirage formation, etc.)
 An understanding of previous
concepts from this unit. Use the links below to see the
Studying Suggestions for the previous quizzes from this
unit.
Sample Quizzes (Unit 13
Quiz):
There are a few sample quizzes
currently available on the topics of refraction, dsipersion
and total internal reflection.
Quiz#2 (1994)
Quiz#2 (1996) (contains a few
refraction questions on the above topics)
Quiz#2 (1997)
Quiz #3 (1996) (contains only
a few refraction questions on the above topics)
 Sample
Quizzes  Studying
Suggestions  About the Quiz
Room  Archive of 1997
Studying Suggestions  Archive
of 1998 Studying Suggestions  Other
Glenbrook South Physics Resources 
© Tom
Henderson, 19961998
Glenbrook
South High School.
Last updated on 9/28/98.
