Please sit in seat number ___________________
PH2100
Exam II
SPRING 2005
INSTRUCTIONS
1.
Remove the answer sheet (General Purpose Data Sheet I) from the exam booklet.
2.
Using a #2 pencil, write your first and last name neatly in the NAME box.
3.
Under the green box labeled "ID NUMBER", write in your MTU student I.D. number (without dashes)
and carefully fill in the appropriate circles corresponding to your ID number. Most of you have your
Social Security number as your student I.D. number. If your M number is your student I.D. number, please
replace the leading M with a zero. Again, do not include dashes. Leave the "SPECIAL CODES" boxes
blank.
4.
Be sure to fill in the circles completely and avoid stray marks on the form.
5.
This a ninety minute exam.
6.
Please cover your Score Sheet at all times.
7.
This is a closed book exam.
You may use the PH2100 Formula Sheet that is attached to this exam, and
you may find it convenient to rip the formula sheet from the exam booklet.
8.
Equations may not be stored in calculators, nor may calculators be exchanged.
9.
Assume all numerical data supplied with the problems have three significant figure accuracy, unless
explicitly identified otherwise.
10. This exam consists of a total of 31 questions on six following pages: each question is worth five points.
Problem 31 is a fivepoint bonus question. The total number of points available on the exam is 155, out of
which 5 points can be considered bonus points.
11. If you have any questions during the exam, please raise your hand and wait for assistance.
12. Please turn in only your answer sheet
. You may keep the exam booklet and formula sheet.
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View Full DocumentPH2100
Exam II
SPRING 2005
1
1. An object is moving with constant velocity. Which of the following statements must be true?
(A)
The net force on the object is zero.
(B)
A small net force must be acting in the direction of the velocity.
(C)
There are no forces acting on the object.
(D)
There can be forces on the object but no friction.
2. While flying horizontally in an airplane, you notice that a string dangling from the luggage compartment hangs at rest,
relative to the airplane, at 15 degrees away from the vertical. From this observation, you can conclude that:
(A)
The airplane must be an inertial reference frame.
(B)
The airplane must be moving with a constant speed.
(C)
The airplane must be moving with an acceleration of constant magnitude.
(D)
The airplane must be moving with a constant velocity.
3. A rope is tied to a box and is holding it at rest on an inclined plane. Ignoring friction, how many forces are acting on the
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 Spring '09
 Gibbons
 Electrical Engineering

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