Answer Key
Kinematics Ranking Tasks
Ball Motion Diagrams—Velocity I
ADF
BE
Ball Motion Diagrams—Acceleration I
ADF
BE
Ball Motion Diagrams—Velocity II
F
BE
Ball Motion Diagrams—Acceleration II
F
C
Objects in Different Situations—Accelerations
E
F
Vertical Model Rockets—Maximum Height
BF
AEG
Vertical Arrows—Maximum Height
C
AF
Position Time Graphs—Displacement
C
D
Cars—Change of Velocity
AE
D
Position Time Graphs—Average Speed
E
F
Motion Diagrams—Displacement
DF
E
Motion Diagrams—Average Velocity
DF
E
People on Trains—Speed Relative to Ground
D
F
Force Ranking Tasks
Carts Moving along Horizontal Surface—String Tension
A
BE
Carts Moving Along Horizontal Surface—Acceleration
DF
C
Carts Moving along Horizontal Surface—Slowing Down
DF
C
Two-Dimensional Forces on a Treasure Chest—Final Speed
AE
F
Two-Dimensional Forces on a Treasure Chest—Acceleration
AE
F
Arrows—Acceleration
All same (g)
Rocks Thrown Upward—Net Force
CE
BH
Model Rockets Moving Upward—Net Force
AD
CFG
Blocks Attached to Fixed Objects—Rope Tension
E
ACDFG
Ball Motion Diagram—Net Force
ADF
BE
Force Acceleration Graphs—Mass
F
C
Two Different Blocks and a Pulley—Tension
E F C D
Ropes Pulling Boxes—Acceleration
A
BC
Ropes Pulling Boxes—Rope Tension
D
BE
Two Different Blocks and a Pulley—Net Force
F
D
Moving Car and Boat Trailer—Force Difference
All same
Accelerating Car and Boat Trailer—Force Difference
All same
Car and Boat Trailer on an Incline—Force Difference
All same
Forces on Objects on Smooth Surfaces—Velocity Change
B
A
Forces on Objects on Smooth Surfaces—Speed Change
BE
AD
Forces on Objects on Rough Surfaces—Velocity Change
B
A
Forces on Objects on Rough Surfaces—Speed Change
All same
Person in an Elevator Moving Upward—Scale Weight
AE
CDF
Person in an Elevator Moving Downward—Scale Weight
AE
CDF
Two Blocks at Rest—Force Difference
All same - 0
Two Moving Blocks—Force Difference
All same - 0
Two Accelerating Blocks—Force Difference
All same - 0
Horizontal Arrows at Different Distances—Force
All same - 0
Horizontal Arrows at Different Times—Force
All same - 0
Horizontal Arrows at Different Distances and Times—Force
All same - 0
Projectile and Other Two Dimensional Motion Ranking Tasks
Water Over a Waterfall—Time to Reach Ground
ABC
DEF
Horizontal Arrows—Time to Hit Ground
BC
DGH
Rifle Shots—Time to Hit Ground
BC
DGH
Toy Trucks Rolling Off Tables—Time in Air
BC
DGH
Spheres Thrown Horizontally Off Cliffs—Time to Hit Ground
BC
DGH
Arrows—Maximum Heights
CF
BD
Rock Throw—Maximum Heights
CDF
BG
Model Rockets Fired at an Angle—Horizontal Speed at Top
BEG
AFH
Cannon Shots—Acceleration at the Top
All same
Carts on Incline—Height After Leaving Incline
AD
CE
Projectile—Horizontal Distance
EF
CD
Projectile—Time in Air
All same
Work-Energy Ranking Tasks
Boxcars and Ropes—Stopping Force in Same Distance
C F D
Cars and Barriers—Stopping Force in Same Distance I
C H E D
Cars and Barriers—Stopping Distance with the Same Force
G H C F
Cars—Work Done in Change of Velocity
E
AG
Bouncing Cart—Change in Kinetic Energy
EF
BCD
Bouncing Cart—Work Done by the Barrier
EF
BCD
Bouncing Cart—Work Done on the Barrier
A
BCD
Ranking Task Exercises in Physics
215
C
C
C
BE
A
CDH
BD
ABF
BFG
C
A
A
BE
C
BE
BE
BD
BD
DG
BH
B
C
AD
B
DEF
ACF
E
CF
CF
CF
B
B
AEF
AEF
AEF
AEF
AEG
AH
CD
H
AB
E
G B
B D
CD
A
A
EF
Page #
1
2
3
AD
4
AD
5
BC D
6
7
EG H
8
E
9
C
H
10
D
AB 1 1
B
C
12
B
C
13
AC
14
15
DF
16
A
17
A
18
C
19
C
20
21
AF
22
E
23
H
24
25
B
E
26
A
27
28
29
BC A
30
31
32
33
D
E
34
35
D
E
36
37
GH
38
GH
39
40
41
42
43
44
45
46
47
48
49
50
51
H
52
E
53
54
55
BFG
56
57
58
59
B
A
60
F
A
61
E
A
62
B
FH 6 3
64
65
66
Answer Key
Model Rockets—Kinetic Energy
Sliding Masses on Incline—Kinetic Energy
Sliding Masses on Incline—Change in Potential Energy
Cars—Change in Kinetic Energy during a Change of Velocity
Ball Motion Diagram—Kinetic Energy
Equal Forces on Boxes—Work Done on Box
Equal Force on Boxes—Work Done on Hand
Velocity Time Graph—Work Done on Box
Pendulums—Maximum Speed of the Bob
Force Pushing Box—Change in Kinetic Energy
Pushing Box with Friction—Change in Kinetic Energy
Impulse-Momentum Ranking Tasks
Carts and Springs—Spring Compression Time
Cars and Barriers — Stopping Time with the Same Force
Exploding Shells—Final Location of Center of Mass
Bouncing Cart—Change in Momentum I
Bouncing Cart—Change in Momentum II
Bouncing Cart—Change in Momentum III
Force Pushing Box—Change in Momentum
Force Pushing Box—Final Momentum
Cars—Impulse During a Change of Velocity
Cars—Change in Momentum during a Change of Velocity
Rotation Ranking Tasks
Four L's Rotating About an Axis (side view)—Moment of Inertia
Five T's Rotating About an Axis (top view)—Moment of Inertia
Four T's Rotating About an Axis (side view)—Moment of Inertia
Five T's Rotating About an Axis (top view)—Net Gravitational Torque
Five T's Rotating About an Axis (top view)—Angular Acceleration
Blocks on Rotating Turntables—Horizontal Force
Hanging Weights and Fixed Disks—Torque
Horizontal Uniform Rods—Angular Acceleration
Horizontal Uniform Rods—Change in Angular Momentum
Rotating Systems of Point Masses—Difficult to Rotate
Rotating Systems of Point Masses—Center of Mass
Statics—Difficult to Hold I
Statics—Difficult to Hold I I
Properties of Matter Ranking Tasks
Springs and Masses—Period of Oscillating Mass
Blocks Suspended in Liquids—Buoyant Force
Blocks Suspended in Liquids—Volume of Liquid Displaced
Blocks Suspended in Liquids—Mass of Liquid Displaced
Blocks Suspended in Liquids at Different Depths—Buoyant Force
Floating Blocks with Different Loads—Buoyant Force
Blocks Suspended in Water—String Tension
Blocks Suspended in Liquids—Buoyant Force II
Blocks Floating in Liquids—Buoyant Force
Blocks at the Bottom of Liquids—Buoyant Force
Cylinders of Water—Pressure on the Plug I
Cylinders of Liquids—Pressure on the Plug II
Heat and Thermodynamics Ranking Tasks
Copper and Water in Styrofoam Cups—Maximum Temperature
Various Thermodynamic Processes—Work Done by Gas
Gas Cylinders—Pressure
Pressure vs. Volume Graph—Temperature at Different Points I
Pressure vs. Volume Graph—Temperature at Different Points II
Pressure, Temperature, and Molecules—Internal Energy
Pressure, Volume, and Molecules—Temperature
Internal Energy, Volume, and Molecules—Temperature
Internal Energy, Volume, and Molecules—Pressure
Temperature, Pressure, and Molecules—Internal Energy
Wave Ranking Tasks
Wave Forms with Same Frequency—Wave Speed
Wave Pulses—Leading Edge Time to Travel
Standing Waves—Frequency
Standing Waves – Wavelength
Standing Waves Systems – Wave Speed
Wave Forms with Same Wavelength – Wave Speed
Ranking Task Exercises in Physics
216
All same
F
F
E
ADF
B
E
B
B
AFH
A C
67
68
69
70
71
DF E
72
A
B
73
C
74
AF
75
76
GH
77
78
CFG
B
DE
AH
79
GH
F
CD
BE A
80
ABC
DEF
81
BG
A
EF
CDH
82
All same
83
AC
DE
BF
84
AFH
CE
BDG
85
F A C
E
D
B
86
AE
D
BFG
C
H
87
AE
D
BFG
C
H
88
89
C
ABD
90
B
A
DE
C
91
C
D
AB
92
B
A
DE
C
93
A
DE
B
C
94
F
AB
D
E
C
95
F B A
D
E
C
96
C E A
B
F
D
97
B
E
AF
C
D
98
D A E
B
C
F
99
D
A
CE
B
F
100
F
AC
EG
D
B 101
DE
CF
AB
G
102
103
H D EF
C
B
AG 104
AB
C
DF
E
105
All same
106
AB
C DF
E
107
BDE
ACF
108
DG
F ABC
E
109
C BF
A D E
110
B EF
CD
A
111
E G CF
DH
AB
112
B FG
CE
AH
D
113
H CF
AG
BDE
114
C
E
F
AB D 115
116
C B F E A D
117
IB
L
IT
A IV
118
A C EF
D B
119
B
C
A
D
E
120
C D B E AF
H
G 121
CH
DG
A
EF B 122
B
D
A
CEGH F
123
B DG A
EF
C
H 124
G DF
ABCH
E
125
CH
DG
A
EF B 126
127
CD
AE
BF
128
All same
129
B
AE
D
C
FG 130
FG
C
D
AE B 131
B
F
D
AC E
132
All same
133
AB
AB
AG
BE
A
DF
ADFG
CD
CE
B D
C
C
CD
C
C
C
E
E
BDG
E F
D
D
B
E
E
FH
Answer Key
Pairs of Transverse Waves—Superposition
AC
B
DF
Wave Forms with Same Wavelength—Wave Energy
C
AB
EF
Electrostatics Ranking Tasks
Two Electric Charges—Electric Force
C
DE
BG
Three Linear Electric Charges — Electric Force
D C A
F
Two Nonlinear Electric Charges — Electric Force
AEFG
BC
DH
Charged Conducting Spheres—Electric Field at the Center
All zero
Charged Conducting Spheres—Electric Potential at the Center
E
AFH
B D
Charged Conducting Spheres—Electric Field at Various points
F
C
ABDE
Charged Conducting Spheres—Electric Potential at Various Points
DE
F
AB
Charges Outside a Conducting Sphere—Force on Enclosed Charge
All zero
Point Charges Outside Conducting Spheres—Electric Field Within
All zero
Induced Charges—Positive and Negative
B E D
FG
Induced Charges—Near a Charged Rod
BE
CD
AF
Pairs of Charges—Attractive and Repulsive Force
CD
AB
EF
Suspended Charges—Angle
A
E
BD
Uniform Electric Field—Electric Force on Charge at Rest I
All same
Uniform Electric Field—Electric Force on Charge at Rest II
All same
Uniform Electric Field/Potential Lines—Electric Force on Charge at Rest III
All same
Uniform Electric Field—Electric Force on Various Charges at Rest
DE
ABCF
Two Electric Charges—Electric Field Along Line
B
AF
CE
Electron Within a Charged Capacitor—Force on the Electron
BF
ADE
C
Transfer of Charge in Conductors—Left Conductor
A EH C I
B
Transfer of Charge in Conductors—Right Conductor
A EH C I
B
Non-Uniform Electric Field—Electric Potential
AB
C
D
Non-Uniform Electric Field—Electric Field Strength
AB
C
D
Uniform Electric Field—Potential Difference
G
DH
ACE
Uniform Electric Field—Strength of the Electric Field I
All same
Uniform Electric Field—Strength of the Electric Field II
All same
Uniform Electric Field/Potential Lines—Strength of the Electric Field
All same
Uniform Electric Field—Electric Potential at Different Points II
C
AB
DE
Uniform Electric Field—Potential Energy of a Positive Charge
C
AB
DE
Uniform Electric Field—Potential Energy of a Negative Charge
F
DE
AB
Uniform Electric Field—Change in Potential Energy of a Positive Charge C
AB
DE
Uniform Electric Field—Change in Potential Energy of a Negative Charge F
DE
AB
Electron Within a Charged Capacitor—Electric Potential Energy
EF
AB
CD
DC Circuit Ranking Tasks
Basic Circuits with Identical Capacitors—Charge on a Capacitor
CDEG AB
FH
Circuits with Identical Capacitors—Charge on a Capacitor
CD
E
AB
Simple Capacitor Circuits—Charge on a Capacitor
DF
CE
AB
Basic Circuits with Identical Capacitors—Voltage Across a Capacitor
CDEG AB
FH
Circuits with Resistors and Capacitors—Current
BF
CG
D
Current Carrying Wires with Different Lengths—Net Charge
All zero
Batteries and Bulbs—Bulb Brightness
C
B
ADE
Simple Resistor Circuits—Current
C
BE
A
Current Carrying Wires with Different Resistances—Net Charge
All zero net charge
Simple Series Circuit—Voltage Across Bulb X
GH
DE
BCF
Simple Resistor Circuits—Voltage Drop
C
A
BE
Parallel Circuits—Voltmeter Readings Across Open Switches I
D
B
C
Parallel Circuits—Voltmeter Readings Across Open Switches II
All readings are 3V
Circuit with Two Open and Closed Switches—Ammeter Readings
D
B
C
Circuit with Two Open and Closed Switches—Voltmeter Readings
B
A
CD
Circuit with Three Open and Closed Switches—Voltmeter Readings I
EH BC G
D
Circuit with Three Open and Closed Switches—Voltmeter Readings II
F A G
D
Circuit with Three Open and Closed Switches—Ammeter Readings
EH BC G
D
Simple Series Circuit with Various Resistors—Current I
All same
Simple Series Circuit with Various Resistors—Voltmeter
G
ACD
BEF
Magnetism and Electromagnetism Ranking Tasks
Moving Charges in Uniform Magnetic Field—Acceleration
GH
EF
CD
Moving Charges in Uniform Magnetic Field—Change in Kinetic Energy
All zero
Charges Near Magnets—Magnetic Force
All zero
Pairs of Long Current Carrying Wires—Magnetic Field
B A E
DG
Pairs of Equal Current Electromagnets—Force
CE
BD
G
Pairs of Equal Current Electromagnets— Magnetic Field between
CE
BDH
G
Unequal Current Electromagnets— Magnetic Field at Ends
B F A E G C
Electromagnets with Unequal Currents—Magnetic Field between
E B F D H A
Graph of Current vs. Time—Induced Current
C
E
B
Ranking Task Exercises in Physics
217
E
D
AF
E
B
C
G
C
CA
F
C
DG
FG
FG
E
E
BF
D
D
F
F
F
F
C
F
C
FGH
GH
AE
D
F
A
F
A
D
A
F
A
BCEH
F
A
AB
C
FH
AF
H
G
AD
F
A
D
C
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
205
206
207
208
209
210
211
212
213
214
Answer Key