SAMPLE FINAL EXAM for GSP 1010
NOTE: THIS SAMPLE EXAM HAS ONE OR TWO ITEMS FROM EACH CHAPTER OR TOPICS
COVERED DURING THIS COURSE.
INSTRUCTIONS:
This is a 100 minute test, answer all questions to obtain full credit. You may use
the equation sheets for both the first test and the final exam. First, fill out the
Answer Sheet with your name, student number and posting number. Fill in the
appropriate letters and numbers with a #2 pencil.
There may be discussion, multiple choice, fill in the blanks, True-False and
Multiple Choice Problems on this test. To answer a discussion question, read
the question and then write the answer in complete sentences. The credit of the
discussion question is determined by the number range given. For example; 3-7,
means that this question is equivalent to five multiple choice questions.
Choose as an answer, the statement that most appropriately answers the multiple
choice question and place it on the answer sheet. Select the one correct answer
for each of the Fill in the Blank Questions and place it on the answer sheet.
You may answer a multiple choice problem in two ways, first: the ALL or NOTHING
METHOD read the question, work it out on scratch paper and then choose the most
correct answer. Second: the ALL or PARTIAL CREDIT METHOD, read the question and
work it out placing the Givens, Unknown, Relationship, Units, Calculation and
final Answer in the space provided near the symbols G,U,R,U,C & A. In the latter
way, it you have selected the wrong answer, I will hand grade the problem and
give you partial credit, this will be: 1/4, 1/3, 1/2, 2/3, or 3/4 of the problem's
credit.
I will answer questions about the test, just raise your hand. You may begin the test.
1. The primary reason for having a theory of the Universe was because it was developed
within Einstein's General Theory of Gravitation.
A) True, b) False.
2. The first experimental fact which led to the Big Bang Theory of the Universe
was the discovery by _______ who found the ________.
a) Gold, Hoyle and others, Steady State Theory; b) Hubble, blue shift, c) Hubble, red
shift, d) Shapley, galaxies have a Doppler Shift,
3.Which of the following is not a vector quantity?
a) force, b) acceleration, c) weight, d) mass, e) momentum,
4. An astronaut on a strange planet has a mass of 80 kg and a weight of 240N. What
is the value of the acceleration of gravity on this planet?
a) 3m/s^2, b) 8 m/s^2, c) 10 m/s^2, d) 1/3 m/s^2, e) 24 m/s^2.
5. A force of 25 N is applied to a block resting on a table and it accelerates at a rate of
4 m/2^2. If the force of friction between the block and table is 5 N, what is the
mass of the block ?
a) 7.5 kg, b) 6.25 kg, c) 5 kg, d) 4 kg, e) 1.25 kg.
6. A 2 kg mass is released at the top of a frictionless slide that is 3 m high.
What is the kinetic energy of the mass when it reaches the bottom ?
a) 6 J, b) 18 J, c) 20 J, d) 30 j, e) 60 J.
7. A 3 N ball is thrown vertically upwards with a speed of 5 m/s. What is the
acceleration of the ball as it just leaves the hand of the thrower?
a) 3 N, b) 9.8 m/s^2 downwards, c) 9.8 upwards, d) 5 m/s, e) not able to be determined.
8. A block of wood has 100 J of gravitational potential energy at the top of a ramp.
It slides down and has 90 J of kinetic energy at the bottom. We can conclude that
a) momentum is conserved, b) mechanical energy is conserved, c) 190 J of energy was
lost, d) 10 J of energy was transformed to another form, e) there was a frictional force of
10 N acting on the block.
9. Which of the following effects occurs for transverse waves but not for longitudinal
waves?
a) interference, b) diffraction, c) reflection, d) polarization, e) refraction.
10. The phenomenon of interference occurs in several ways. Which effect is not due to
interference?
a) beat frequencies, b) Doppler effect, c) standing waves, d) constructive addition
of a wave, e) destructive addition of a wave.
11. The speed of sound is the quotient of the frequency and the wavelength.
a) True, b) False.
12. If a 200 ohm and 400 ohm resistor are each connected to a 9 V battery, which resistor
will draw more current?
a) 200 ohm, b) 400 ohm, c) They will draw the same current.
13. What is the resistance of a light bulb that has a current of 2 A when
plugged into a 120 volt outlet ?
a) 30 ohms, b) 60 ohms, c) 120 ohms, d) 240 ohms, 9) 480 ohms.
14. What is the power used by the light bulb in the previous problem?
a) 60 watts, b) 120 watts, c) 240 watts, d) 480 watts, e) 960 watts.
15. In which of the following situations is an electric current NOT produced?
a) A magnet moves relative to a stationary wire, b) A wire moves relative to a stationary
magnet, c) A wire has been wrapped around a stationary magnet, d) A magnetic field
within a loop is decreasing.
16. In the electromagnetic spectrum there are different names for the waves. These names
are based on how they are related to other waves or what detector is used. If one goes
from long to short wavelengths the order is: radio, microwaves, infrared, visible, gamma
and X-rays.
a) True, b) False.
17-20. What is the power produced by a car traveling 30.5 m/s which is passing a
slower car ? Assume that the passing car wheels push that car with a force of 1200 N for
30 seconds. (the time it takes to pass the slow car)
a) 110 kW, b) 36.7 kW, c) 132 kW, d) 10.9 kW, e) 3.3 kW
G U
U C
R A
21-24 What is the cost of keeping your computer on 24 hrs/day for a 30 day month ?
Assume the electrical energy rate is $ 0.10/ kwH. and that the computer is using 200
watts of power, (even though your power supply can produce a maximum of 400 watts.)
a) $ 1.44; b) $ 4.80 ; c) $ 9.60; d) $ 14.40; e) $ 48.00
G U
U C
R A
25-28 A cell phone battery charger is to operate on household voltage of 120 V AC.
If the cell phone battery charger operates at 2.8 V AC, what is the ratio of turns in the
output to the number of turns in the input of the transformer that produces the 2.8V ?
a) 0.023, b) 42.9, c) 336, d) 0.00298
G U
U C
R A
29. Light is emitted from an atom when an atomic electron is given energy and moves from
a lower orbit to a higher orbit.
a) True, b) False
30-32 What is the energy of light photon emitted by an atom whose frequency is 3 x 10^14 Hz ?
a)5.1 x 10^-21 J, b)4.5 x10^-21 J, c)2.2 x 10^20 J, d) 1.9 x 10^-19 J, e) 5.1 x 10^18 J
G U
R C
R A
Answers: 1 A, 2 C, 3 D, 4 A, 5 C, 6 E, 7 B, 8 D, 9 D, 10 B, 11 B, 12 A, 13 B,
14 C, 15 C, 16 B, 17-20 B, 21-24 D, 25-28 A, 29 B, 30-32 D.
10-03-08