PHYSICS 213 – PRACTICE FINAL EXAM*
*The actual final exam will contain 16 multiple choice quiztype questions (32 points,
8 covering concepts from the current lecture material and 8 from the previous three
exams), 2 essaytype questions (8 points, one covering an important fundamental
principle from the current lecture material and one from the previous three exams),
and 6 problems (132 points, 3 from the previous exams / sample exams and 3
similar to the problems that follow).
NAME (printed)
SIGNATURE
Student Number
SECTION
Wait for oral instructions before starting the test.
INSTRUCTIONS
Remember to show (in English) your problem solving steps for FULL
CREDIT.
A calculator and 2 onesided 8½X11 student reference sheets are
permitted.
Your 2 reference sheets may contain equations, graphs,
and notes; however, quiz questions and worked out problems CANNOT
be included. Cell phones/communication devices must be
put away.
For the graders:
Q118
P1
P2
P3
P4
P5
P6
TOTAL
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentSpecial Relativity
[22 Points]
An astronomer on Earth observes a meteoroid in the southern sky
approaching Earth at a speed of 0.800C. At the time of its discovery, the
meteoroid is 20 light years from Earth.
a)
Calculate the time required for the meteoroid to reach Earth, as measured
by the Earthbound astronomer.
[5½ Points]
Answer
:
25 yr
b)
Determine this required time as measured by an observer on the
meteoroid.
[5½ Points]
Answer
:
15 yr
c)
Calculate the distance to Earth as measured by the observer on the
This is the end of the preview.
Sign up
to
access the rest of the document.
 Summer '08
 Cao
 Physics, Current, Energy, Photon, physicist, Compton scattering

Click to edit the document details