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Chapter 6 Test

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Last updated over 5 years ago
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MULTIPLE CHOICE
-Complete the following questions by clicking on the correct answer. Only one answer is correct. (2 pts. each)
Question 1
1.

Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
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Question 10
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Question 11
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Question 12
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Question 13
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Question 14
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Question 15
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Question 16
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Question 17
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Question 18
18.

Question 19
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Question 20
20.

COMPLETION
-Complete the following questions by selecting the correct answer from the word bank. Misspelled words will be marked as incorrect. Some answers may be used more than once, others may not be used at all. (2 pts. each)
momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 21
21.

When air resistance exactly matches the downward force of gravity, a falling object stops accelerating and reaches ________________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 22
22.

An object at rest tends to remain at rest. This property is called __________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 23
23.

Only in a vacuum or in space can an object be in _______________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 24
24.

A car accelerating from 60 km/h to a constant speed of 80 km/h has increased its ___________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 25
25.

The horizontal movement given to an arrow by a bow is one componant of ___________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 26
26.

The unbalanced force that causes objects to move in a circular path is called a(n) _____________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 27
27.

The product of the mass and velocity of an object is called the ___________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 28
28.

The tendency of all objects to resist any change in motion is called ___________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 29
29.

The forward motion of a spacecraft combines with its motion in ____________________ to cause orbiting.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 30
30.

A satellite stays in orbit around Earth because of __________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 31
31.

The _______________ of a falling object can be calculated if the acceleration due to gravity and the time the object falls are known.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 32
32.

A pitched baseball follows a curved path because of the force of ______________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 33
33.

A 0.30 kg ball moving west at 6.0 m/s has ____________________ as much momentum as a 0.60 kg ball moving with the same velocity.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 34
34.

According to the Law of Conservation of Momentum, when two objects stick together after a collision, their velocity _____________________.

momentum, free fall, terminal velocity, inertia, projectile motion, centripetal force, velocity, gravity, first, second, third, increases, decreases, one third, one fourth, one half,
Question 35
35.

The Law of Conservation of Momentum is equivalent to Newton's ________________ law of motion.

MATCHING
-Complete the following matching questions by clicking on the correct answer. Only one answer is correct. (2 pts. each)
Question 36
36.

Question 37
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Question 38
38.

Question 39
39.

Question 40
40.

Question 41
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Question 42
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Question 43
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Question 44
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Question 45
45.

SHORT ANSWER
-Write in complete sentences to answer the following questions. One or two word responses will earn NO credit. Logically connect your thoughts and answer the question that is asked, not the question you think has been asked! (2 pts. each)
Question 46
46.

Use Newton's Third Law to explain how a person hammering a nail into a block of wood is demonstrating conservation of momentum.

Question 47
47.

Why would a feather dropped from the same height as an acorn fall to Earth more slowly than the acorn?

Question 48
48.

A skier with a mass of 45 kg moves with a velocity of 10.0 m/s east. What is the skier's momentum?

Question 49
49.

Why do you have to aim above a target that you want to hit with a thrown object?

Question 50
50.

What is the equation for momentum?

Do NOT forget to turn in this assignment on Google Classroom after you have submitted it here! No credit will be awarded for unsubmitted assignments.
If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first assuming there is no air resistance?
A the cannonball
B the baseball
C the balls land at the same time
D the ball with the larger volume
Why do astronauts in space appear weightless?
A There is no gravity in space.
B Air resistance opposes gravity.
C they have no mass in space.
D They are in free fall.
Which is true of the reaction force of the chair that you are sitting on?
A The force is greater than your weight.
B The force is equal to your weight.
C The force is determined by many factors.
D The force varies.
Which of the following is the equation for Newton's second law of motion?
A F = m x a
B m = F x a
C a = m x F
D m = a x F
Which is a common unbalanced force acting on objects in motion?
A inertia
B acceleration
C friction
D speed
A car with a mass of 1400 kg moves along the ice with a constant velocity of 18.0 m/s. What is the car's momentum?
A 77.8 N
B 25,200 N
C 77.8 kg * m/s
D 25,200 kg * m/s
When a bowling ball collides with a bowling pin, the momentum of the ball
A increases slightly as the velocity of the pin increases.
B decreases slightly as the velocity of the pin increases.
C decreases slightly as the velocity of the pin decreases.
D does not change at all.
If a moving boxcar gently collides with a boxcar at rest and the two boxcars move together, their combined momentum will be
A greater than the original momentum of the moving boxcar.
B equal to the original momentum of the moving boxcar.
C less than the original momentum of the moving boxcar.
D zero.
Which of the following objects has the least acceleration?
A an empty shopping cart pushed with a hard force
B a full shopping cart pushed with a hard force
C an empty shopping cart pushed with a light force
D a full shopping cart pushed with a light force.
A cue ball rolls toward a billiard ball with a velocity of 1.0 m/s east. Both balls have identical masses. What happens to the total momentum after the two balls collide?
A It is greater than the original momentum of the cue ball.
B It is equal to the momentum before the collision.
C It is less than the original momentum of the cue ball.
D It is equal to zero.
Why do astronauts in an orbiting spacecraft appear weightless?
A Nothing in space exerts a force of gravity on the astronauts.
B The astronauts are in free fall along with the spaceship.
C The astronauts have no mass in space.
D The spaceship exerts an equal force on an astronaut from all sides.
An ice skater with a mass of 65 kg moves along the ice with a constant velocity of 2.0 m/s. What is the skater's momentum?
A 130 kg * m/s
B 32 kg * m/s
C 130 N
D 32 N
An object is in projectile motion if it
A is thrown with a horizontal push.
B is accelerated downward by gravity.
C does not accelerate horizontally
D All of the above.
When a soccer ball is kicked, the action and reation forces do not cancel each other out because
A the forces are not equal in size.
B the forces act on different objects.
C the forces act at different times.
D All of the above.
Why does a crumpled piece of paper land before a flat piece of paper?
A Gravity exerts more force on the crumpled paper.
B There is more air resistance on the flat paper.
C The crumpled paper is heavier.
D The crumpled paper is lighter.
Which of the following will increase the acceleration of an object that is pushed by a force?
A decreasing the mass of the object
B increasing the mass of the object
C increasing the force pushing the object
D Both A & C
Which of the following is in projectile motion?
A a feather falling in a vacuum
B a cat leaping on a toy
C a car driving up a hill
D a book laying on a desk
Air resistance causes the speed of a falling object to
A increase.
B decrease.
C remain unchanged.
D become zero.
A falling object's terminal velocity is reached when the force of gravity
A is greater than the force of air resistance.
B is less than the force of air resistance.
C is equal to the force of air resistance.
D is the only force acting on the object.
A car stopped at a traffic light is best described by
A Newton's First Law of Motion for objects at rest.
B Newton's First Law of Motion for objects in motion.
C Newton's Second Law of Motion.
D Newton's Third Law of Motion.
the path of one object around another in space
A terminal velocity
B free fall
C projectile motion
D centripetal force
E air resistance
F orbit
the unbalanced force that causes objects to move in a circular path
A terminal velocity
B free fall
C projectile motion
D centripetal force
E air resistance
F orbit
the motion of a body when only gravity acts on it
A terminal velocity
B free fall
C projectile motion
D centripetal force
E air resistance
F orbit
the curved path of a thrown object near Earth's surface
A terminal velocity
B free fall
C projectile motion
D centripetal force
E air resistance
F orbit
the constant velocity of a falling object when the force of gravity is balanced by air resistance
A terminal velocity
B free fall
C projectile motion
D centripetal force
E air resistance
F orbit
the force that opposes the motion of objects through air
A terminal velocity
B free fall
C projectile motion
D centripetal force
E air resistance
F orbit
This causes a change in the motion of an object.
A inertia
B equal & opposite force
C unbalanced force
D friction
This increases with an object's mass, making it harder to change the velocity of the object.
A inertia
B equal & opposite force
C unbalanced force
D friction
This force between a sliding object and a surface causes the sliding object to slow down.
A inertia
B equal & opposite force
C unbalanced force
D friction
The force exerted by a bat on a baseball, with respect to the baseball's force against the bat.
A inertia
B equal & opposite force
C unbalanced force
D friction