Phys 165 Module 3 Exam Questions
With Complete Solutions
What is the branch of classical mechanics concerned with the study of forces and their
effects on motion called? CORRECT ANSWERS Dynamics
Which of the following is the BEST description of a force?
a) simply a push or a pull
b) an action exerted on an object which may change the object's state of rest or motion
c) something only found in sci-fi movies
d) A and B CORRECT ANSWERS a) simply a push or a pull
b) an action exerted on an object which may change the object's state of rest or motion
c) something only found in sci-fi movies
*d) A and B*
What is the unit for force? CORRECT ANSWERS Newtons
In a free body diagram of a box resting on the floor, how many forces would you draw?
A) 1
B) 2
C) 3
D) 4 CORRECT ANSWERS B) 2
What is the specific, immediate, identifiable cause of a force called? CORRECT
ANSWERS Agent of Force
When a baseball player hits a home run, what is the agent of the force applied to the
ball? CORRECT ANSWERS The bat
What makes a field force different from a contact force when it comes to agents and
receivers of forces? CORRECT ANSWERS In field forces the agent and receiver of the
force do not have to touch, but in contact forces the agent and receiver of the force
must touch
A force exerted from any surface (the agent) onto an object that is pressing against the
given surface is known as a(n) _______.
A) Normal Force
B) Tension Force
C) Elastic Force
D) Field Force CORRECT ANSWERS A) Normal Force
he force that acts on an object to resist motion is known as ______________.
A) Normal
B) Friction
With Complete Solutions
What is the branch of classical mechanics concerned with the study of forces and their
effects on motion called? CORRECT ANSWERS Dynamics
Which of the following is the BEST description of a force?
a) simply a push or a pull
b) an action exerted on an object which may change the object's state of rest or motion
c) something only found in sci-fi movies
d) A and B CORRECT ANSWERS a) simply a push or a pull
b) an action exerted on an object which may change the object's state of rest or motion
c) something only found in sci-fi movies
*d) A and B*
What is the unit for force? CORRECT ANSWERS Newtons
In a free body diagram of a box resting on the floor, how many forces would you draw?
A) 1
B) 2
C) 3
D) 4 CORRECT ANSWERS B) 2
What is the specific, immediate, identifiable cause of a force called? CORRECT
ANSWERS Agent of Force
When a baseball player hits a home run, what is the agent of the force applied to the
ball? CORRECT ANSWERS The bat
What makes a field force different from a contact force when it comes to agents and
receivers of forces? CORRECT ANSWERS In field forces the agent and receiver of the
force do not have to touch, but in contact forces the agent and receiver of the force
must touch
A force exerted from any surface (the agent) onto an object that is pressing against the
given surface is known as a(n) _______.
A) Normal Force
B) Tension Force
C) Elastic Force
D) Field Force CORRECT ANSWERS A) Normal Force
he force that acts on an object to resist motion is known as ______________.
A) Normal
B) Friction
