PES Skill Sheets.book - Capital High School

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Page 2 of 2 1. What is the momentum of a 100.-kilogram fullback carrying a football on a play at a velocity of 3.5 m/s? 2. What is the momentum of a 75.0-kilogram defensive back chasing the fullback at a velocity of 5.00 m/s? 3. A 2,000-kilogram railroad car moving at 5 m/s to the east collides with a 6,000-kilogram railroad car moving at 3 m/s to the west. If the cars couple together, what is their velocity after the collision? 4. A 4.0-kilogram ball moving at 8.0 m/s to the right collides with a 1.0-kilogram ball at rest. After the collision, the 4.0-kilogram ball moves at 4.8 m/s to the right. What is the velocity of the 1-kilogram ball? 5. A 0.0010-kg pellet is fired at a speed of 50.0m/s at a motionless 0.35-kg piece of balsa wood. When the pellet hits the wood, it sticks in the wood and they slide off together. With what speed do they slide? 6. Terry, a 70.-kilogram tailback, runs through his offensive line at a speed of 7.0 m/s. Jared, a 100-kilogram linebacker, running in the opposite direction at 6.0 m/s, meets Jared head-on and “wraps him up.” What is the result of this tackle? 7. Snowboarding cautiously down a steep slope at a speed of 7.0 m/s, Sarah, whose mass is 50. kilograms, is afraid she won't have enough speed to travel up a slight uphill grade ahead of her. She extends her hand as her friend Trevor, who has a mass of 100. kilograms, is about to pass her traveling at 16 m/s. If Trevor grabs her hand, calculate the speed at which the friends will be sliding. 8. Tex, an 85.0 kilogram rodeo bull rider is thrown from the bull after a short ride. The 520. kilogram bull chases after Tex at 13.0 m/s. While running away at 3.00 m/s, Tex jumps onto the back of the bull to avoid being trampled. How fast does the bull run with Tex aboard? 9. Identical twins Kate and Karen each have a mass of 45 kg. They are rowing their boat on a hot summer afternoon when they decide to go for a swim. Kate jumps off the front of the boat at a speed of 3.00 m/s. Karen jumps off the back at a speed of 4.00 m/s. If the 70.-kilogram rowboat is moving at 1.00 m/s when the girls jump, what is the speed of the rowboat after the girls jump? 10. A 0.10-kilogram piece of modeling clay is tossed at a motionless 0.10-kilogram block of wood and sticks. The block slides across a frictionless table at 15 m/s. a. At what speed was the clay tossed? b. The clay is replaced with a “bouncy” ball with the same mass. It is tossed with the same speed. The bouncy ball rebounds from the wooden block at a speed of 10 m/s. What effect does this have on the wooden block? Why? 6.3
Name: Date: 6.3 Rate of Change of Momentum Momentum is given by the expression p = mv where p is the momentum of an object of mass m moving with velocity v. The units of momentum are kg-m/s. Change of momentum (represented Δp) over a time interval (represented Δt) is also called the rate of change of momentum. Since, momentum is p = mv, if the mass remains constant during the time Δt, then: Δv The expression, ----- , represents change in velocity over change in time, also known as acceleration. From Δt Newton’s second law, we know that acceleration equals force divided by mass (a = F/m). Rearranging the equation, we see that force equals mass times acceleration (F = ma). Similarly, force (F) equals change in momentum over change in time. A mass, m, moving with velocity, v, has momentum mv. If this momentum becomes zero over some change in time (Δt), then there is a force, F =(mv –0)/Δt. • mv is the initial momentum. • 0 is the momentum after a change in time Δt. Δp ------ m Δt Δv = ----- Δt F ma m Δv = = ----- = Δt When a car accelerates or decelerates, we feel a force that pushes back during acceleration and pushes us forward during deceleration. When the car brakes slowly, the force is small. However, when the car brakes quickly, the force increases considerably. Example 1. An 80-kg woman is a passenger in a car going 90 km/h. The driver puts on the brakes and the car comes to a stop in 2 seconds. What is the average force felt by the passenger? First, convert the velocity to a value that is in meters per second: 90 km/h = 25 m/s. Next, use the equation that relates force and momentum: This is a large force, and for the passenger to stay in her seat, she must be strapped in with a seat belt. When the stopping time decreases from 2 seconds to 1 second, the force increases to 2,000 newtons. When the car is involved in a crash, the change in momentum happens over a much shorter period of time, thereby creating very large forces on the passenger. Air bags and seat belts help by slowing down the person’s momentum change, resulting in smaller forces and a reduced chance for injury. Let’s look at some numbers. Δp ------ Δt Δp Force ------ m Δt Δv ----- 25 0 80 kg Δt – ( ) m/s = = = ----------------------------- = 1,000 N 2 s 6.3
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Chapter and Section Chapter 1: Meas
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Chapter and Section Chapter 5: Forc
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Chapter and Section Chapter 9: Heat
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Chapter and Section Chapter 14: Cha
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Chapter and Section Chapter 18: Ear
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Chapter and Section Chapter 24: Wav
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Name: Date: 1.1 Lab Safety What can
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Page 3 of 6 Safety quiz 1. Draw a d
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Page 5 of 6 c. You suddenly you beg
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Name: Date: 1.1 Using Your Textbook
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Page 2 of 3 The following prefixes
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Name: Date: 1.1 Scientific Notation
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Page 3 of 3 3. Write the numbers in
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Page 2 of 4 Example 1: Measuring ob
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Page 4 of 4 4. . Prefix Symbol Mult
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Name: Date: 1.2 Reading Strategies
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Name: Date: 1.2 Stopwatch Math What
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Name: Date: 1.2 Understanding Light
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Name: Date: 1.2 Indirect Measuremen
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Name: Date: 1.3 Dimensional Analysi
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Name: Date: Skill Builder Fractions
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Page 3 of 4 Solving fraction proble
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Name: Date: 1.3 Significant Digits
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Page 3 of 4 Follow these steps for
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Name: Date: 1.3 Study Notes This sk
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Name: Date: 1.3 Science Vocabulary
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Page 3 of 3 Using the table of pref
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Page 2 of 2 5. Earth’s moon is co
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Page 2 of 3 When precise conversion
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Name: Date: 1.4 Creating Scatterplo
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Page 3 of 3 g. What is the position
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Page 2 of 2 1.4 1. Given the variab
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Page 2 of 3 Step 3: Look at the ran
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Name: Date: 1.4 Recognizing Pattern
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Page 3 of 3 Answer the following qu
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Page 2 of 2 4. Measurements: List a
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Page 2 of 2 2. Your teacher shows y
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Page 2 of 4 Recording valid observa
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Page 4 of 4 b. How did the student
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Page 2 of 3 Name: Lucy O. Date: Jan
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Name: Date: 2.2 Using Computer Spre
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Page 3 of 3 5. The following data i
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Page 2 of 2 2. John notices that hi
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Name: Date: 3.1 Latitude and Longit
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Page 3 of 4 Use an atlas or globe t
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Name: Date: 3.1 Map Scales Mapmaker
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Page 3 of 3 f. Point Q to Point M g
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Page 2 of 5 It’s time to go! 3.1
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Page 4 of 5 37. Now you will head t
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Name: Date: 4.1 Vectors on a Map Yo
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Page 2 of 3 1. Draw a profile map o
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Name: Date: 3.3 Bathymetric Maps Im
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Page 1 of 2 3.3 Tanya Atwater Tanya
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Name: Date: 4.1 Solving Equations w
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Page 3 of 4 Use the formula V = l
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Name: Date: 4.1 Problem Solving Box
Page 113 and 114: Page 2 of 3 In problems 6 and 7, yo
Page 115 and 116: Name: Date: 4.1 Percent Error When
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Page 119 and 120: Page 2 of 3 1. A bicyclist travels
Page 121 and 122: Name: Date: 4.1 Velocity Speed and
Page 123 and 124: Name: Date: 4.2 Calculating Slope f
Page 125 and 126: Name: Date: 4.2 Analyzing Graphs of
Page 127 and 128: Page 3 of 4 1. For each position-ti
Page 129 and 130: Name: Date: 4.2 Analyzing Graphs of
Page 131 and 132: Name: Date: 4.3 Acceleration Accele
Page 133 and 134: Name: Date: 4.3 Acceleration and Sp
Page 135 and 136: Page 3 of 3 3. Graph 3: 4. Find acc
Page 137 and 138: Page 2 of 3 Example 1: How fast wil
Page 139 and 140: Name: Date: 5.1 Ratios and Proporti
Page 141 and 142: Name: Date: 5.1 Internet Research S
Page 143 and 144: Name: Date: 5.1 Preparing a Bibliog
Page 145 and 146: Name: Date: 5.1 Mass vs. Weight Wha
Page 147 and 148: Page 2 of 2 1. A physical science t
Page 149 and 150: Page 2 of 2 How much does it weigh
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Page 153 and 154: Name: Date: 5.3 Equilibrium When al
Page 155 and 156: Name: Date: 6.1 Net Force and Newto
Page 157 and 158: Page 2 of 2 Reading reflection 1. I
Page 159 and 160: Name: Date: 6.3 Applying Newton’s
Page 161 and 162: Name: Date: 6.3 Momentum Conservati
Page 163: Name: Date: 6.3 Collisions and Cons
Page 167 and 168: Page 3 of 3 6. A 50.-g (0.050-kg) e
Page 169 and 170: Page 2 of 2 1. A machine uses an in
Page 171 and 172: Page 2 of 2 Example 3: A 500-newton
Page 173 and 174: Page 2 of 2 7. You pull your sled t
Page 175 and 176: Page 2 of 2 The relationship betwee
Page 177 and 178: Page 2 of 2 6. Use the gear ratio f
Page 179 and 180: Page 2 of 2 The three classes of le
Page 181 and 182: Page 2 of 2 3. Now, calculate the g
Page 183 and 184: Page 2 of 2 To do this calculation,
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Page 187 and 188: Name: Date: 7.2 Conservation of Ene
Page 189 and 190: Page 2 of 2 Reading reflection 1. W
Page 191 and 192: Name: Date: 7.3 Power In science, w
Page 193 and 194: Name: Date: 7.3 Power in Flowing En
Page 195 and 196: Name: Date: 7.3 Efficiency and Ener
Page 197 and 198: Page 2 of 2 Reading the temperature
Page 199 and 200: Page 2 of 4 1. For each of the prob
Page 201 and 202: Page 4 of 4 1. Surface temperatures
Page 203 and 204: Page 2 of 2 The graph below shows a
Page 205 and 206: Name: Date: 9.1 Using the Heat Equa
Page 207 and 208: Name: Date: 10.1 Measuring Mass wit
Page 209 and 210: Page 3 of 3 Reading the balance cor
Page 211 and 212: Page 2 of 2 d. Explain how the disp
Page 213 and 214: Page 2 of 3 Calculating volume of a
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Name: Date: 10.1 Density The densit
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Name: Date: 10.3 Pressure in Fluids
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Name: Date: 10.3 Boyle’s Law The
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Name: Date: 10.4 Charles’s Law Ch
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Name: Date: 10.4 Archimedes 10.4 Ar
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Name: Date: 10.4 Narcís Monturiol
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Name: Date: 10.4 Archimedes’ Prin
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Name: Date: 11.1 Layers of the Atmo
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Page 2 of 2 Reading reflection 1. H
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Page 2 of 3 Using temperature data
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Page 1 of 2 11.3 Joanne Simpson 11.
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Name: Date: 11.3 Weather Maps You h
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Name: Date: 11.3 Tracking a Hurrica
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Page 3 of 4 Hurricane Andrew crosse
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Name: Date: 12.1 Structure of the A
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Name: Date: 12.1 Atoms and Isotopes
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Name: Date: 12.1 Ernest Rutherford
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Name: Date: 12.2 Electrons and Ener
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Page 2 of 2 Periodic Table Groups T
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Page 2 of 2 Using dot diagrams to r
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Page 2 of 2 13.2 Important note: If
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Page 2 of 2 Example 2: Aluminum and
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Page 2 of 2 13.2 Predict the name o
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Page 2 of 2 Using the information i
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Page 2 of 3 Conservation of atoms T
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Name: Date: 14.1 The Avogadro Numbe
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Page 3 of 4 Substance Elements in s
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Name: Date: 14.1 Formula Mass A che
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Name: Date: 14.2 Classifying Reacti
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Name: Date: 14.2 Predicting Chemica
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Name: Date: 14.2 Percent Yield You
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Name: Date: 14.4 Lise Meitner Lise
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Name: Date: 14.4 Marie and Pierre C
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Page 3 of 3 Reading reflection 1. W
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Page 2 of 2 Reading reflection 1. R
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Page 2 of 2 Reading reflection 1. U
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Page 2 of 2 1. The decay series for
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Page 2 of 2 Reading reflection 1. D
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. Page 2 of 3 i. Switches 2, 3, and
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Name: Date: 16.1 Benjamin Franklin
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Name: Date: 16.2 Using an Electric
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Page 3 of 4 Build a series circuit
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Name: Date: 16.3 Voltage, Current,
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Page 3 of 3 Now you will have the o
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Page 2 of 2 7. How much voltage wou
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Page 2 of 2 5. Use the series circu
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Page 2 of 2 In part (d) of problems
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Page 2 of 2 Reading reflection 1. N
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Page 2 of 2 7. The directions—nor
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Page 2 of 2 6. Repeat step 5 to for
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Page 2 of 2 A transformer steps dow
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Page 2 of 2 4. Calculate the power
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Page 2 of 4 Determining the relativ
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Page 4 of 4 Extension—Creating cl
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Page 2 of 2 Reading reflection 1. N
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Name: Date: 19.1 Earth’s Interior
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Page 2 of 2 Reading reflection 1. L
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Page 2 of 2 Reading reflection 1. E
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Name: Date: 19.4 Continental United
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Page 3 of 4 When a mountain is form
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Name: Date: 20.1 Averaging The most
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Page 2 of 5 Locating the epicenter
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Page 4 of 5 20.1 For each of the pr
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Name: Date: 20.2 Volcano Parts 20.2
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Name: Date: 21.2 Calculating Concen
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Name: Date: 21.2 Solubility In this
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Page 3 of 3 The influence of temper
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Page 2 of 3 Work through these exam
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Name: Date: 21.3 Calculating pH The
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Name: Date: 22.1 Groundwater and We
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Page 3 of 3 Testing the model: 1. W
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Name: Date: 24.1 Period and Frequen
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Page 2 of 2 2. Use the grids below
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Page 2 of 2 2. Use the grids below
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Page 2 of 3 x-axis (blocks) Height
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Name: Date: 24.3 Decibel Scale The
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Page 2 of 2 a. ____________________
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Page 2 of 2 2. Two students want to
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Name: Date: 24.3 Palm Pipes Project
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Page 3 of 3 6. Challenge: You can f
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Page 2 of 2 Answer the following pr
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Page 2 of 2 4. You see a chair that
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Page 2 of 2 a. ____________________
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Name: Date: 25.3 Using Ray Diagrams
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Page 2 of 2 2. Light strikes a mirr
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Page 2 of 2 Which way does the ligh
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Page 2 of 2 25.3 1. A lens has a fo
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Name: Date: 26.1 Gravity Problems I
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Name: Date: 26.1 Universal Gravitat
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Page 1 of 2 26.1 Nicolaus Copernicu
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Page 1 of 2 26.1 Galileo Galilei Ga
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Page 1 of 2 26.1 Johannes Kepler 26
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Name: Date: 26.1 Measuring the Moon
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Page 3 of 3 Semi-Circle Card: 26.1
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Page 2 of 2 Reading reflection 1. B
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Page 2 of 2 Part 2: Provisions for
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Page 1 of 2 27.1 Arthur Walker 27.1
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Name: Date: 27.2 The Inverse Square
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Page 2 of 3 1. Fill in the missing
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Name: Date: 28.1 Understanding Ligh
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Name: Date: 28.1 Parsecs You have a
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Page 1 of 2 28.1 Edwin Hubble Edwin
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Name: Date: 28.2 Light Intensity Pr
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Page 2 of 2 If we know the brightne
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Page 2 of 2 Solving Doppler Shift P
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13. A decimeter is 100 times larger
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Skill Sheet 1.3: Significant Digits
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7. Yes, there is a relationship bet
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6. The slope is the same (2.0) unti
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13. S Sh—Sand and shells on the b
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10. 410 miles 11. 6.6 miles -------
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Skill Sheet 4.2: Analyzing Graphs o
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Skill Sheet 5.1: Mass, Weight, and
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Skill Sheet 6.3: Applying Newton’
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Skill Sheet 7.1: Mechanical Advanta
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8. The middle gear turns left. The
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Skill Sheet 7.3: Power in Flowing E
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Skill Sheet 10.1: Calculating volum
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3. Answers are: a. 100 cm 3 b. 13 N
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Skill Sheet 11.3: Weather Maps Samp
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a. b. c. d. e f. Skill Sheet 12.2:
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Skill Sheet 14.1: Chemical Equation
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must be blocking their insulin’s
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8. The current is approximately the
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7. Students can find information ab
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Skill Sheet 17.4: Electrical Power
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Skill Sheet 19.1: Charles Richter 1
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Practice 2: 1. First problem is don
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Skill Sheet 21.3: Calculating pH 1.
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Question 8 (con’t) 9. The new wav
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Skill Sheet 25.2: The Human Eye a.
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Skill Sheet 26.1: Nicolaus Copernic
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Skill Sheet 27.1: Arthur Walker 1.
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