1. 3 pts each packet COMPLETED review packet
NO NON – POLY ATTIRE, ID’s AROUND YOUR NECK
OBJECTIVE `
Review on work, energy, power and momentum.
Drill 4.33: prep Date:
Get a copy of Review Packet 3, go straight to your seat and start working with the review sheet.
EXTRA CREDIT - due on Monday, June 8
3 pts each packet COMPLETED review packet
(no credit for incomplete/ with blanks reviewer)
2 pts for being present and on time in class (1 pt if late)
to EXAM SCORE
ZERO for the day behavior is unbecoming (ex. Loud, electronics, sleeping etc)
All LEGAL missed work/ quiz should be made-up by Fri, June 5.
STAY SEATED, Wait for teacher to say “class dismiss”

2. 5 -PACKETS IN YOUR CLASS BINS
REVIEW PACKETS
Due by 8:05 on Monday, June 8
PLACE ALL THE
5 -PACKETS IN YOUR CLASS BINS

3. Everything we CANNOT DO IN CLASS
HOMEWORK
Everything we CANNOT DO IN CLASS

4. If we can finish each packet in class
No HOMEWORK
If we can finish each packet in class

5. Circle the letter of your answer
MULTIPLE CHOICE
Circle the letter of your answer
(equations for problem solving questions)

6. No. 1 When a car’s speed doubles, what happens to its kinetic energy?
It is quartered
It is halved
It is doubled
It is quadrupled

7. No. 1
When a car’s speed doubles, what happens to its kinetic energy?
It is quadrupled

8. No. 2
Which energy transformation occurs as a book falls from the top of your book shelf?
the book’s potential energy and kinetic energy decreases
the book’s potential energy increases and it’s kinetic energy decreases
the book’s potential energy decreases and it’s kinetic energy increases
the book’s potential energy and kinetic energy increases

9. No. 2
Which energy transformation occurs as a book falls from the top of your book shelf?
the book’s potential energy decreases and it’s kinetic energy increases

10. No. 3
The main difference between kinetic energy and potential energy is that
kinetic energy involves position and potential energy involves motion.
kinetic energy involves motion and potential energy involves position.
although both energies involve motion, only kinetic involves position.
although both energies involve position, only potential involves motion.

11. kinetic energy involves motion and potential energy involves position.
No. 3
The main difference between kinetic energy and potential energy is that
kinetic energy involves motion and potential energy involves position.

12. No. 4
4 N is exerted on a 1 kg mass at rest for 2 m, causing it to move. What is the change in the object’s kinetic energy?
2 J
16 J
8 J
64 J

13. No. 4
4 N is exerted on a 1 kg mass at rest for 2 m, causing it to move. What is the change in the object’s kinetic energy? 8 J

14. No. 5
As the object moves from point A to point D across the surface, the sum of its gravitational potential and kinetic energies ____.
decreases, only
decreases then increases
increases then decreases
remains the same

15. No. 5
As the object moves from point A to point D across the surface, the sum of its gravitational potential and kinetic energies ____.
remains the same

16. No. 6 The object will have a minimum potential energy at point ____. AD E

17. No. 6
The object will have a minimum potential energy at point ____. B

18. No. 7
The object's kinetic energy at point C is greater than its kinetic energy at point ____.
A only
A, D and E
B only
D and E

19. No. 7
The object's kinetic energy at point C is greater than its kinetic energy at point ____.
A, D and E

20. No. 8
How fast would a 100-kg meteorite have to travel to have the same energy as a 10,000-kg meteorite traveling at 100 m/s?
500 m/s
5000 m/s
1000 m/s
10,000 m/s

21. No. 8
How fast would a 100-kg meteorite have to travel to have the same energy as a 10,000-kg meteorite traveling at 100 m/s?

22. No. 8
How fast would a 100-kg meteorite have to travel to have the same energy as a 10,000-kg meteorite traveling at 100 m/s?
1000 m/s

23. No. 9 The law of conservation of energy states that :
in a closed, isolated system, the total amount of energy is constant
the total amount of energy in any system is the sum of its kinetic and gravitational potential energies
Energy can increase or decrease, it depends on the work done
the total amount of energy in any system is its mechanical energy

24. in a closed, isolated system, the total amount of energy is constant
No. 9
The law of conservation of energy states that :
in a closed, isolated system, the total amount of energy is constant

25. No. 10
The sum of the kinetic and gravitational potential energies of a system is called
Reserved Energy
Conserved Energy
Momentum
Mechanical Energy

26. No. 10
The sum of the kinetic and gravitational potential energies of a system is called Mechanical Energy

27. No. 11
If the time of collision remains t, but the initial velocity is doubled, what happens to the force necessary to catch the ball?
It doubles
It quadruples.
It is cut in half
It is cut to one fourth of the original force

28. No. 11
If the time of collision remains t, but the initial velocity is doubled, what happens to the force necessary to catch the ball?
It doubles

29. No. 12
An impulse acts on an object when ______________ is applied __________
A velocity, to a mass
a force, for a time
Acceleration, over a distance
friction, while it moves

30. No. 12
An impulse acts on an object when ______________ is applied __________ a force, for a time

31. No. 13
If a 32 Ns impulse is given to a 4 kg object, the change of momentum for the object is:
4 kg m/s
8 kg m/s
32 kg m/s
128 kg m/s

32. No. 13
If a 32 Ns impulse is given to a 4 kg object, the change of momentum for the object is:
32 kg m/s

33. No. 14
In which of the following situations would a falling egg experience the LEAST amount of average force as it is stopped?
an egg with a momentum of –0.2 kg · m/s stopping over an interval of .05 s
an egg with a momentum of –0.2 kg · m/s stopping over an interval of 1.0 s
an egg with a momentum of –0.2 kg · m/s stopping over an interval of 2.0 s
an egg with a momentum of –0.2 kg · m/s stopping over an interval of 5.0 s

34. No. 14
In which of the following situations would a falling egg experience the LEAST amount of average force as it is stopped?
an egg with a momentum of –0.2 kg · m/s stopping over an interval of 5.0 s

35. No. 15
Consider the mass and velocity values of Objects A and B on the right.
Compared to Object B, Object A has ____ momentum.
two times the
four times the
eight times the
the same
one-half the
one-fourth the

36. No. 15
Consider the mass and velocity values of Objects A and B on the right.
Compared to Object B, Object A has ____ momentum.
two
times
the

37. No. 16 Which quantity has both a magnitude and a direction? Energy
Power
Momentum
Work

38. No. 16
Which quantity has both a magnitude and a direction?
Momentum

39. No. 17
A 3.0 kilogram steel block is at rest on a frictionless horizontal surface. A 1.0 kg lump of clay is propelled horizontally at 6.0 meters per second toward the block as shown in the diagram below. Upon collision, the clay and steel block stick together and move to the right with a speed of:
1.5m/s
2.0 m/s
3.0 m/s
6.0 m/s

40. No. 17
A 3.0 kilogram steel block is at rest on a frictionless horizontal surface. A 1.0 kg lump of clay is propelled horizontally at 6.0 meters per second toward the block as shown in the diagram below. Upon collision, the clay and steel block stick together and move to the right with a speed of:

41. No. 17
A 3.0 kilogram steel block is at rest on a frictionless horizontal surface. A 1.0 kg lump of clay is propelled horizontally at 6.0 meters per second toward the block as shown in the diagram below. Upon collision, the clay and steel block stick together and move to the right with a speed of:
1.5m/s

42. No. 18
Same as no. 12

43. No. 19
SAME AS NO. 13

44. No. 20
Object A with momentum of 80 kg m/s and object B with momentum 50 kg m/s collide. The total momentum of the system after the collision is
0 kg m/s
30 kg m/s
130 kg m/s
400 kgm/s
can’t be determined

45. No. 20
Object A with momentum of 80 kg m/s and object B with momentum 50 kg m/s collide. The total momentum of the system after the collision is 130 kg m/s

46. No. 21
What is the maximum height to which a motor having a power rating of 20.4 watts can lift a 5.00 kilogram stone in 10.0 seconds?
0.416 m
0.408 m
4.16 m
40.8 m

47. No. 21
What is the maximum height to which a motor having a power rating of 20.4 watts can lift a 5.00 kilogram stone in 10.0 seconds?
4.16 m

48. No. 22
Object 1 and Object 2 are traveling at the same speed, but the kinetic energy of Object 1 is greater than the kinetic energy of Object 2. How does the weight of Object 1 compare to the weight of Object 2?
Object 1 weighs more than Object 2.
Object 1 weighs less than Object 2.
Object 1 weighs the same as Object 2
More information is needed to compare the weights of the objects.

49. Object 1 weighs more than Object 2.
Object 1 and Object 2 are traveling at the same speed, but the kinetic energy of Object 1 is greater than the kinetic energy of Object 2. How does the weight of Object 1 compare to the weight of Object 2?
Object 1 weighs more than Object 2.

50. No. 23
A pendulum is made from a 7.50-kilogram mass attached to a rope. The mass is initially at rest and is released from position A which is 1.5 meters higher than the lowest point in its swing. After being released the pendulum moves freely back and forth between positions A and B, as shown in the diagram on the right. What is the kinetic energy of the mass has when it is at its lowest point? [Neglect air resistance.]
11 J
94 J
110 J
920 J

51. No. 23
A pendulum is made from a 7.50-kilogram mass attached to a rope. The mass is initially at rest and is released from position A which is 1.5 meters higher than the lowest point in its swing. After being released the pendulum moves freely back and forth between positions A and B, as shown in the diagram on the right. What is the kinetic energy of the mass has when it is at its lowest point? [Neglect air resistance.]
110 J

52. No. 12
Two elevators, A and B, move at constant speeds. Elevator B moves with twice the speed of elevator A. Elevator B weighs twice as much as elevator A. Compared to the power needed to lift elevator A, the power needed to lift elevator B is
the same
twice as great
half as great
four times as great

53. No. 12
Two elevators, A and B, move at constant speeds. Elevator B moves with twice the speed of elevator A. Elevator B weighs twice as much as elevator A. Compared to the power needed to lift elevator A, the power needed to lift elevator B is
four times as great

54. No. 25
The graph below represents the relationship between gravitational force and mass for objects near the surface of Earth. What does the slope of this graph represent?
universal gravitational constant, G
acceleration due to gravity, g
momentum of the object
weight of the object

55. No. 25
The graph below represents the relationship between gravitational force and mass for objects near the surface of Earth. What does the slope of this graph represent?

56. acceleration due to gravity, g
No. 25
The graph below represents the relationship between gravitational force and mass for objects near the surface of Earth. What does the slope of this graph represent?
acceleration due to gravity, g

57. No. 26
When a satellite is a distance R from the center of Earth, the force due to gravity on the satellite is F. What is the force due to gravity on the satellite when its distance from the center of Earth is 3R?
F/9
F/3 F 9F

58. No. 26
When a satellite is a distance R from the center of Earth, the force due to gravity on the satellite is F. What is the force due to gravity on the satellite when its distance from the center of Earth is 3R?
F/9

59. No. 27
The gravitational force of attraction between two objects would be increased by
doubling the mass of both objects, only
doubling the distance between the objects, only
doubling the mass of both objects and doubling the distance between the objects
doubling the mass of one object and doubling the distance between the objects

60. doubling the mass of both objects, only
No. 27
The gravitational force of attraction between two objects would be increased by
doubling the mass of both objects, only

61. No. 28
A ball of mass M is caught by someone wearing a baseball glove. The ball is in contact with the glove for a time t; the initial velocity of the ball (just before the catcher touches it) is v0. If the time of the ball’s collision with the glove is doubled, what happens to the force necessary to catch the ball?
It doubles
It quadruples.
It is cut in half.
It is cut to one fourth of the original force.

62. No. 28
A ball of mass M is caught by someone wearing a baseball glove. The ball is in contact with the glove for a time t; the initial velocity of the ball (just before the catcher touches it) is v0. If the time of the ball’s collision with the glove is doubled, what happens to the force necessary to catch the ball? It is cut in half.

63. No. 29
If the time of collision remains t, but the initial velocity is doubled, what happens to the force necessary to catch the ball?
It doubles.
It quadruples.
It is cut in half.
It is cut to one fourth of the original force.

64. No. 29
If the time of collision remains t, but the initial velocity is doubled, what happens to the force necessary to catch the ball?
It doubles

65. No. 30
During a collision, an 84-kilogram driver of a car moving at 24 m/s is brought to rest by an inflating air bag in 1.2 seconds. The magnitude of the force exerted on the driver by the air bag is approximately
7.0 x 101N
8.2 x 102N
1.7 x 103 N
2.0 x 103 N

66. No. 30
During a collision, an 84-kilogram driver of a car moving at 24 m/s is brought to rest by an inflating air bag in 1.2 seconds. The magnitude of the force exerted on the driver by the air bag is approximately 2.0 x 103 N

67. No. 31
A rifle recoils from firing a bullet. Compared to the speed of the bullet, the speed of the rifle’s recoil is smaller. What could be the reason for this?
The momentum of the rifle is unchanged.
The rifle has lots more mass than the bullet.
The force against the rifle is relatively smaller.
The impulse on the rifle is less than the impulse on the bullet

68. The rifle has lots more mass than the bullet
No. 31
A rifle recoils from firing a bullet. Compared to the speed of the bullet, the speed of the rifle’s recoil is smaller. What could be the reason for this?
The rifle has lots more mass than the bullet

69. No. 32
A moving freight train car runs into an identical car at rest on the track. The cars couple together. How does the velocity of the combined cars after the collision compare to the velocity of the first car before the collision?
one half as large
twice as large
the same
zero

70. No. 32
A moving freight train car runs into an identical car at rest on the track. The cars couple together. How does the velocity of the combined cars after the collision compare to the velocity of the first car before the collision?
one half as large

71. No. 33
An electric motor lifts an elevator 14.0 m in 22.5 s by exerting an upward force of 1.75×104 N. What power does the motor produce in kilowatts?
10.9 kW
1.09 x 104 kW
2.45 x 104 kW
2.45 kW

72. No. 33
An electric motor lifts an elevator 14.0 m in 22.5 s by exerting an upward force of 1.75×104 N. What power does the motor produce in kilowatts?
1.09 x 104 kW

73. No. 34
A 2.0-kilogram cart moving due east at 6.0 meters per second collides with a 3.0-kilogram cart moving due west. The carts stick together and come to rest after the collision. What was the initial speed of the 3.0-kilogram cart?
1.0 m/s
4.0 m/s
6.0 m/s
9.0 m/s

74. No. 34
A 2.0-kilogram cart moving due east at 6.0 meters per second collides with a 3.0-kilogram cart moving due west. The carts stick together and come to rest after the collision. What was the initial speed of the 3.0-kilogram cart?
4.0 m/s

75. No. 35 What occurs when the string is cut and the carts move apart?
The magnitude of the acceleration of cart A is one-half the magnitude of the acceleration of cart B.
The length of time that the force acts on cart A is twice the length of time the force acts on cart B.
The magnitude of the force exerted on cart A is one-half the magnitude of the force exerted on cart B.
The magnitude of the impulse applied to cart A is twice the magnitude of the impulse applied to cart B

76. No. 35 What occurs when the string is cut and the carts move apart?
1 kg
2 kg

77. No. 35
What occurs when the string is cut and the carts move apart?
The magnitude of the acceleration of cart A is one-half the magnitude of the acceleration of cart B.

78. No. 36
After the string is cut and the two carts move apart, the magnitude of which quantity is the same for both carts?
Momentum
velocity
inertia
kinetic energy

79. No. 36
After the string is cut and the two carts move apart, the magnitude of which quantity is the same for both carts?
Momentum

80. No. 37
In the figure on the right, if the force exerted on the backpack is 20.0 N and the distance it acts over is 0.25 m, what is the work done?
2.5 J
5 J
40 J
80 J

81. No. 37
In the figure on the right, if the force exerted on the backpack is 20.0 N and the distance it acts over is 0.25 m, what is the work done? 5 J

82. No. 38 One __________ is one joule of work done in one second. calorie
newton
volt
watt

83. No. 38
One __________ is one joule of work done in one second. newton

84. No. 39
How much work does the force of gravity do on a 5.45-kg bowling ball that falls a distance of m?
40.3 J
71.2 J
4.1 J
262 J

85. No. 39
How much work does the force of gravity do on a 5.45-kg bowling ball that falls a distance of m?
40.3 J

86. No. 40
The equation for calculating work when there is an angle between force and displacement is:
W = Fd cos 
W = Flm
W = Fd
W = F  KE

87. No. 40
The equation for calculating work when there is an angle between force and displacement is:
W = Fd cos 

88. No. 41
A go-cart travels around a flat, horizontal, circular track with a radius of 25 meters. The mass of the go-cart with the rider is 200. kilograms. Friction between the track and wheels can provide a maximum of 1200 N of centripetal force to keep the go-cart from sliding off the track.
What is the maximum speed the 200-kilogram go-cart can travel without sliding off the track?
8.0 m/s
12 m/s
48 m/s
170 m/s

89. No. 41
A go-cart travels around a flat, horizontal, circular track with a radius of 25 meters. The mass of the go-cart with the rider is 200. kilograms. Friction between the track and wheels can provide a maximum of 1200 N of centripetal force to keep the go-cart from sliding off the track.
What is the maximum speed the 200-kilogram go-cart can travel without sliding off the track?
12 m/s

90. No. 42
A go-cart travels around a flat, horizontal, circular track with a radius of 25 meters. The mass of the go-cart with the rider is 200. kilograms. Friction between the track and wheels can provide a maximum of 1200 N of centripetal force to keep the go-cart from sliding off the track.
Which change would increase the maximum speed at which the go-cart could travel without sliding off this track?
decrease the coefficient of friction between the go-cart and the track
decrease the radius of the track
increase the radius of the track
increase the mass of the go-cart

91. increase the radius of the track
No. 42
A go-cart travels around a flat, horizontal, circular track with a radius of 25 meters. The mass of the go-cart with the rider is 200. kilograms. Friction between the track and wheels can provide a maximum of 1200 N of centripetal force to keep the go-cart from sliding off the track.
Which change would increase the maximum speed at which the go-cart could travel without sliding off this track?
increase the radius of the track

92. No. 43
Refer to the graph on the right, what is the work done on the first 2 m?
A. 5 J
B. 10 J
C. 20 J
D. 0 J

93. No. 43
Refer to the graph on the right, what is the work done on the first 2 m?
B. 10 J

94. No. 44 In which of the following situations is NO WORK done on a book?
carrying the book down the hall
picking up the book
dropping the book
pushing the book across the desk

95. carrying the book down the hall
No. 44
In which of the following situations is NO WORK done on a book?
carrying the book down the hall

96. No. 45
Work is done on an object when a constant force is exerted on the object causing the object to be displaced
opposite the direction of the force
perpendicular to the force
at an angle to the force
in the direction of the force

97. No. 45
Work is done on an object when a constant force is exerted on the object causing the object to be displaced in the direction of the force

98. No. 42
What angle between the force applied on an object and its displacement allows for maximum work done on an object? 0o
45 o
70 o
90 o

99. No. 42
What angle between the force applied on an object and its displacement allows for maximum work done on an object? 0o

100. No. 46
The rate of doing work:
Effort
force
power
energy

101. No. 46
The rate of doing work:
power

102. No. 47
In the following diagram scaled vectors represent the momentum of each of two masses, A and B, sliding toward each other on a frictionless horizontal surface. Which scaled vector best represents the momentum of the system after the masses collide?

103. No. 47
In the following diagram scaled vectors represent the momentum of each of two masses, A and B, sliding toward each other on a frictionless horizontal surface. Which scaled vector best represents the momentum of the system after the masses collide?

104. No. 48
A force of 6.0 newtons changes the momentum of a moving object by 3.0 kilogram meters per second. How long did the net force act on the mass?
1.0 s
2.0 s
0.25 s
0.50 s

105. No. 48
A force of 6.0 newtons changes the momentum of a moving object by 3.0 kilogram meters per second. How long did the net force act on the mass? 0.50 s

106. No. 49
The work done in lifting an apple one meter near Earth's surface is approximately:
0.01 J
1 J
100 J
1000 J

107. No. 49
The work done in lifting an apple one meter near Earth's surface is approximately:
1 J

108. No. 50
The unit of power: N Nm w
kgm/s

109. No. 50
The unit of power: w

110. Write the equation, solve it later.
PROBLEM SOLVING
Write the equation, solve it later.

111. No. 51
A cyclist exerts a force of 15.0 N as he rides a bike 251 m in 30.0 s. How much power does the cyclist develop?

112. No. 52
Haloke does 176 J of work lifting himself m. What is Haloke’s mass?

113. No. 53
A 17.0 kg crate is to be pulled a distance of 20.0 m, requiring 1210 J of work to be done. If the job is done by attaching a rope and puling with a force of 75.0 N, at what angle is the rope held from the horizontal?

114. No. 54
Consider your height, how much work you do in holding a 7.00 kg sack of potatoes while waiting in line at the grocery store for 3.00 minutes. What is the power developed?

115. No. 55
Brutus, a champion weightlifter, raises kg of weights a distance of 2.35 m
How much work is done by Brutus lifting the weights?
How much work is done by Brutus holding the weights above his head?
Does Brutus do work if he lets go of the weights and they fall back to the ground?
If Brutus completes the lift in 2.50 s, how much power is developed?

116. No. 56
A construction worker uses a block and tackle to lift 2400 N of lumber from the ground to a waiting helper on the second floor, 4.00 m above the ground. To do this, she applies a 250-N force on the rope of the block and tackle. She pulls 50.0 m of rope through the block and tackle before the load is lifted to the second floor. Based upon the information given, calculate the following for this block and tackle: work input work output efficiency

117. No. 57
A car of mass 1000 kg is at rest when a truck of mass 3000 kg rear ends it with a velocity of +10 m/s. If the car has a velocity of +15 m/s after the collision, what is the velocity of the truck after the collision?

118. No. 58
How long does it take a 10 gram bullet to pass through an apple if it experiences a force of -500 N and slows by 2 m/s?

119. No. 59
Determine the force of gravitational attraction between the earth (m = 5.98 x 1024 kg) and a 70-kg physics student if the student is standing at sea level, a distance of 6.38 x 106 m from earth's center

120. No. 60
A small fish is cruising along with a speed of 2 m/s when another fish, 3 times more massive, comes head on at 2 m/s and swallows the smaller fish. What is the final speed of the larger fish?

121. A 4.00 kg rock is rolling 10.0 m/s. Find its kinetic energy.
No. 61
A 4.00 kg rock is rolling 10.0 m/s. Find its kinetic energy.

122. No. 62
Calculate the potential energy of a 5.00 kg object sitting on a 3.00 m ledge

123. No. 63
A spring is stretched m from equilibrium. The force constant (k) of the spring is N/m. What is the potential energy of the spring?

124. No. 62
An object with a change of velocity of 2 m/s undergoing an impulse of 600 Ns, find the mass of that object?

125. How high up is a 3.00 kg object that has 300.00 joules of energy
No. 63
How high up is a 3.00 kg object that has joules of energy

126. No. 64 A 3.0 kg toy falls from a height of 10.0 m.
What is its potential energy at the top?
Just before hitting the ground, what will be its kinetic energy?
What was the work done on the toy as it fell?
What is the speed of the toy just before it hits the ground?

127. How high will a 0.50 kg ball rise if 100.0 J of work is done it?
No. 65
How high will a 0.50 kg ball rise if J of work is done it?

128. No. 66
Kelli weighs N and she is sitting on a playground swing seat that hangs m above the ground. Tom pulls the swing back and releases it the seat is 1.00 m above the ground. How fast is Kelli moving when the swing passes through its lowest position?

129. Answer the rest of the questions!
HOMEWORK
Answer the rest of the questions!

130. WRAP UP
None
EXTRA CREDIT - due on Physics Day Exam
Added to EXAM GRADE / COMPLETED review packet & attendance in class
(no credit for incomplete/ with blanks reviewer)
You may lose your extra credit if behavior is unbecoming.
TEACHER DISMISSES THE CLASS NOT THE BELL. Wait in your seat silently for the teacher to say “CLASS DISMISS”

131. May the POSITIVE FORCE be with you!
CLASS DISMISS
May the POSITIVE FORCE be with you! 

132. HR TO DO TODAY Athletic Interest Survey Prom Venue Ballot
Exam Schedule Correction
> Monday Exam 1 is Science
Exam 2 is English

133. HR TO DO TODAY
Pass Both Surveys forward Those who are seated in front just leave it on your desk