PHYS 165 MODULE 2 EXAM QUESTIONS WITH VERIFIED SOLUTIONS
True or False: Kinematics is the branch of physics which is concerned with the motion of
objects without regard to the forces that affect the motion. - Answers True
Which of the following is the best definition for reference frame?
A) The location of an object as compared to other 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. - Answers B) A collection of objects that
are considered to be stationary that is used to describe the motion of objects.
A physical quantity that has both magnitude and direction is known as a ____________. - Answers
vector
Vector or Scalar?
Distance
Displacement
Position
Time
Time Interval - Answers Distance: *scalar*
Displacement *vector*
Position *vector*
Time *scalar*
Time Interval *scalar*
The rate of displacement is known as ________________. It is a vector and is usually measured in
meters per second (m/s).
A) Velocity
B) Speed
, C) Acceleration
D) Time - Answers A) Velocity
Match the physical quantity in the left column with the appropriate question in the right column.
Each choice will be used exactly once.
Position
Displacement
Time Interval
Speed - Answers Where is it?
How far did it go?
How long did it take?
How fast did it go?
Your place of work is 2.0 miles directly west of the post office. Your house is 1.5 miles directly
north of the post office. You live in a city where the streets all run either north-south or east-
west. On your way home from work you stop at the post office to drop of some mail. Your trip
begins at 4:50 pm and ends at 5:05 pm. Determine the 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 _____ - Answers a) 5:05pm - 4:50pm = 15
minutes
b) 2.0 miles + 1.5 miles = 3.5 miles
c) a^2+b^2=c^2
2^2+1.5^2 = c^2 c= 2.5 miles
d) v=d/t answer in mph
e v=d/t answer in mph
True or False: Kinematics is the branch of physics which is concerned with the motion of
objects without regard to the forces that affect the motion. - Answers True
Which of the following is the best definition for reference frame?
A) The location of an object as compared to other 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. - Answers B) A collection of objects that
are considered to be stationary that is used to describe the motion of objects.
A physical quantity that has both magnitude and direction is known as a ____________. - Answers
vector
Vector or Scalar?
Distance
Displacement
Position
Time
Time Interval - Answers Distance: *scalar*
Displacement *vector*
Position *vector*
Time *scalar*
Time Interval *scalar*
The rate of displacement is known as ________________. It is a vector and is usually measured in
meters per second (m/s).
A) Velocity
B) Speed
, C) Acceleration
D) Time - Answers A) Velocity
Match the physical quantity in the left column with the appropriate question in the right column.
Each choice will be used exactly once.
Position
Displacement
Time Interval
Speed - Answers Where is it?
How far did it go?
How long did it take?
How fast did it go?
Your place of work is 2.0 miles directly west of the post office. Your house is 1.5 miles directly
north of the post office. You live in a city where the streets all run either north-south or east-
west. On your way home from work you stop at the post office to drop of some mail. Your trip
begins at 4:50 pm and ends at 5:05 pm. Determine the 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 _____ - Answers a) 5:05pm - 4:50pm = 15
minutes
b) 2.0 miles + 1.5 miles = 3.5 miles
c) a^2+b^2=c^2
2^2+1.5^2 = c^2 c= 2.5 miles
d) v=d/t answer in mph
e v=d/t answer in mph
