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Chapter 5 Pre-Test



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Forces always occur
a.
as single quantities.
b.
by themselves.
c.
in pairs.
d.
in triplets.
 

 2. 

A player catches a ball. Consider the action force to be the impact of the ball against the player's glove. What is the reaction to this force?
a.
The muscular effort in the player's arms
b.
The force the glove exerts on the ball
c.
Friction of the ground against the player's shoes
d.
The player's grip on the glove
e.
none of the above
 

 3. 

A player hits a ball with a bat. The action force is the impact of the bat against the ball. What is the reaction to this force?
a.
The force of the ball against the bat
b.
The weight of the ball
c.
Air resistance on the ball
d.
The grip of the player's hand against the bat
e.
none of the above
 

 4. 

As a ball falls, the action force is the pull of Earth's mass on the ball. What is the reaction to this force?
a.
The pull of the ball's mass on Earth
b.
The acceleration of the ball
c.
Nonexistent in this case
d.
Air resistance acting against the ball
e.
none of the above
 

 5. 

An unfortunate bug splatters against the windshield of a moving car. Compared to the force of the car on the bug, the force of the bug on the car is
a.
larger.
b.
the same.
c.
smaller.
d.
Need more information to say
 

 6. 

According to Newton's third law, if you push gently on something, it will push
a.
gently on something else.
b.
on you only if you aren't moving.
c.
gently on you.
d.
on something only under the right conditions.
 

 7. 

A force is exerted on the tires of a car to accelerate the car along the road. The force is exerted by the
a.
road.
b.
engine.
c.
tires.
d.
air.
 

 8. 

A karate chop delivers a blow of 2300 N to a board that breaks. The force that acts on the hand during this feat
a.
is less than 2300 N.
b.
is 2300 N.
c.
is more than 2300 N.
d.
cannot be determined.
 

 9. 

A woman weighing 550 N sits on the floor. She exerts a force on the floor of
a.
5.5 N.
b.
55 N.
c.
550 N.
d.
1100 N.
e.
5500 N.
 

 10. 

As a 600-N woman sits on the floor, the floor exerts a force on her of
a.
6 N.
b.
60 N.
c.
1200 N.
d.
600 N.
e.
6000 N.
 

 11. 

Two people pull on a rope in a tug-of-war. Each pulls with 400 N of force. What is the tension in the rope?
a.
0 N
b.
400 N
c.
600 N
d.
800 N
e.
none of the above
 

 12. 

Suppose two people, one having three times the mass of the other, pull on opposite sides of a 20-meter rope while on frictionless ice. After a brief time, they meet. The more massive person slides a distance of
a.
4 m.
b.
5 m.
c.
6 m.
d.
7 m.
 

True/False
Indicate whether the statement is true or false.
 

 13. 

Whenever one object exerts a force on another object, the second object always exerts a force back on the first object.
 

 14. 

A rocketship is pushed forward by gases that are forced out the back of the ship.
 

 15. 

In order to make a cart move forward, a horse must pull harder on the cart than the cart pulls on the horse.
 



 
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