Exam 3 Quiz #1

10 Questions | Total Attempts: 779  Settings  • 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

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