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1. True or False: Kinematics is the branch of physics True
which is concerned with the motion of objects
without regard to the forces that affect the mo-
tion.
2. Which of the following is the best definition for B) A collection of objects that are
reference frame? considered to be stationary that is
used to describe the motion of ob-
A) The location of an object as compared to other jects.
objects that are considered to be stationary.
B) A collection of objects that are considered to be
stationary that is used to describe the motion of
objects.
C) The branch of physics that is concerned with
the motion of objects without regard for the
forces that affect this motion.
D) The rate of change in velocity with respect to
time.
3. A physical quantity that has both magnitude and vector
direction is known as a ____________.
4. Vector or Scalar? Distance: *scalar*
Distance Displacement *vector*
Displacement Position *vector*
Position Time *scalar*
Time Time Interval *scalar*
Time Interval
5. The rate of displacement is known as A) Velocity
________________. It is a vector and is usually mea-
sured in meters per second (m/s).
A) Velocity
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, Phys 165 Module 2 Exam
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B) Speed
C) Acceleration
D) Time
6. Match the physical quantity in the left column Where is it?
with the appropriate question in the right col- How far did it go?
umn. Each choice will be used exactly once. How long did it take?
How fast did it go?
Position
Displacement
Time Interval
Speed
7. Your place of work is 2.0 miles directly west of a) 5:05pm - 4:50pm = 15 minutes
the post office. Your house is 1.5 miles directly b) 2.0 miles + 1.5 miles = 3.5
north of the post office. You live in a city where the miles
streets all run either north-south or east-west. c) a^2+b^2=c^2
On your way home from work you stop at the 2^2+1.5^2 = c^2 c= 2.5 miles
post office to drop of some mail. Your trip begins d) v=d/t answer in mph
at 4:50 pm and ends at 5:05 pm. Determine the e v=d/t answer in mph
following physical quantities:
a. The time interval of your trip _____
b. Your distance traveled _____
c. The magnitude of the displacement for this trip
_____
d. The average speed of your trip _____
e. The magnitude of the average velocity of your
trip _____
8. Which statement BEST describes vectors and Vectors have both magnitude and
scalars? direction
Scalars have only magnitude
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