Exam 3 Quiz #1

10 Questions | By Amoverby | Updated: Mar 21, 2022 | Attempts: 954

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1.

An action exerted on an object which may change the object’s state of rest or motion defines
- A.
  
  Acceleration
- B.
  
  Force
- C.
  
  Mass
- D.
  
  Velocity
2.

Which of the following situations describes inertia?
- A.
  
  A stationary object tends to resist being moved.
- B.
  
  A moving object tends to resist a change in speed.
- C.
  
  A moving object tends to resist a change in direction.
- D.
  
  All of the above
3.

Two forces act on an object. The magnitude of the net force acting on the object
- A.
  
  Equals the sum of the magnitudes of the two forces.
- B.
  
  Equals the difference in the magnitudes of the two forces.
- C.
  
  Equals the average of the two forces.
- D.
  
  Cannot be determined from the given information.
4.

The normal force
- A.
  
  Equals Fg in magnitude.
- B.
  
  Points vertically upward.
- C.
  
  Is a scalar quantity.
- D.
  
  Acts perpendicular to a surface.
5.

Two dogs are tugging on a toy. One dog pulls with a horizontal force of 14 N due north. The other is pulling due east with a horizontal force of 14 N. What is the direction of the net external horizontal force on the toy?
- A.
  
  North
- B.
  
  Northeast
- C.
  
  West
- D.
  
  Northwest
6.

A single force acting on an object is represented in a free-body diagram of the object by the following force vector:up . Which of the following force vectors represents a single force acting on the object that will bring the object into equilibrium?
- A.
  
  Up
- B.
  
  Right
- C.
  
  Down
- D.
  
  Left
7.

In which situation is the net force acting on a car zero?
- A.
  
  The car increases speed and changes direction.
- B.
  
  The car increases speed but does not change direction.
- C.
  
  The car maintains its speed but changes direction.
- D.
  
  The car maintains both its speed and direction.
8.

A draft horse exerts a horizontal force of 600 N dragging a log, on which the force of friction is 500 N. The force due to gravity on the log is 700 N and the ground exerts an upward force of 700 N on it. a.Draw a free-body diagram of the log.Option 1) Option 2)Option 3)Option 4)
- A.
  
  Option 1
- B.
  
  Option 2
- C.
  
  Option 3
- D.
  
  Option 4
9.

A draft horse exerts a horizontal force of 600 N dragging a log, on which the force of friction is 500 N. The force due to gravity on the log is 700 N and the ground exerts an upward force of 700 N on it.b.Determine the sum of the forces in the x-direction
- A.
  
  1100 N
- B.
  
  100 N
- C.
  
  1400 N
- D.
  
  0 N
10.

A draft horse exerts a horizontal force of 600 N dragging a log, on which the force of friction is 500 N. The force due to gravity on the log is 700 N and the ground exerts an upward force of 700 N on it.c.Determine the sum of the forces in the y-direction
- A.
  
  100 N
- B.
  
  700 N
- C.
  
  0 N
- D.
  
  1400 N