PES Skill Sheets.book - Capital High School

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Page 2 of 2 1. Complete the table below: Force (N) Distance (m) Time (sec) Work (J) Power (W) 100 2 5 100 2 10 100 4 10 100 25 500 20 20 1000 30 10 60 9 20 60 3 75 5 2. Oliver weighs 600. newtons. He climbs a flight of stairs that is 3.0 meters tall in 4.0 seconds. a. How much work did he do? b. What was Oliver’s power in watts? 3. An elevator weighing 6,000. newtons moves up a distance of 10.0 meters in 30.0 seconds. a. How much work did the elevator’s motor do? b. What was the power of the elevator’s motor in watt and in horsepower? 4. After a large snowstorm, you shovel 2,500. kilograms of snow off of your sidewalk in half an hour. You lift the shovel to an average height of 1.5 meters while you are piling the snow in your yard. a. How much work did you do? Hint: The force is the weight of the snow. b. What was your power in watts? Hint: You must always convert time to seconds when calculating power. 5. A television converts 12,000 joules of electrical energy into light and sound every minute. What is the power of the television? 6. The power of a typical adult’s body over the course of a day is 100. watts. This means that 100. joules of energy from food are needed each second. a. An average apple contains 500,000 joules of energy. For how many seconds would an apple power a person? b. How many joules are needed each day? c. How many apples would a person need to eat to get enough energy for one day? 7. A mass of 1,000. kilograms of water drops 10.0 meters down a waterfall every second. a. How much potential energy is converted into kinetic energy every second? b. What is the power of the waterfall in watts and in horsepower 8. An alkaline AA battery stores approximately 12,000 joules of energy. A small flashlight uses two AA batteries and will produce light for 2.0 hours. What is the power of the flashlight bulb? Assume all of the energy in the batteries is used. 7.3
Name: Date: 7.3 Efficiency and Energy Efficiency describes how well energy is converted from one form into another. A process is 100% efficient if no energy is “lost” due to friction, to create sound, or for other reasons. In reality, no process is 100% efficient. Efficiency is calculated by dividing the output energy by the input energy. If you multiply the result by 100, you will get efficiency as a percentage. For example, if the answer you get is 0.50, you can multiply by 100 and write your answer as 50%. You drop a 2-kilogram box from a height of 3 meters. Its speed is 7 m/s when it hits the ground. How efficiently did the potential energy turn into kinetic energy? Looking for You are asked to find the efficiency. Given The mass is 2 kilograms, the height is 3 meters, and the landing speed is 7 m/s. Relationships Kinetic energy = 1/2mv 2 Potential energy = mgh Efficiency = (output energy)/(input energy) Solution The input energy is the potential energy, and the output energy is the kinetic energy. The efficiency is 0.83 or 83% (0.83 × 100). 1. Engineers who design battery-operated devices such as cell phones and MP3 players try to make them as efficient as possible. An engineer tests a cell phone and finds that the batteries supply 10,000 J of energy to make 5500 J of output energy in the form of sound and light for the screen. How efficient is the phone? 2. What’s the efficiency of a car that uses 400,000 J of energy from gasoline to make 48,000 J of kinetic energy? 3. A 1000.-kilogram roller coaster goes down a hill that is 90. meters tall. Its speed at the bottom is 40. m/s. a. What is the efficiency of the roller coaster? Assume it starts from rest at the top of the hill. b. What do you think happens to the “lost” energy? c. Use the concepts of energy and efficiency to explain why the first hill on a roller coaster is the tallest. 4. You see an advertisement for a new free fall ride at an amusement park. The ad says the ride is 50. meters tall and reaches a speed of 28 m/s at the bottom. How efficient is the ride? Hint: You can use any mass you wish because it cancels out. 5. Imagine that you are working as a roller coaster designer. You want to build a record-breaking coaster that goes 70.0 m/s at the bottom of the first hill. You estimate that the efficiency of the tracks and cars you are using is 90.0%. How high must the first hill be? E E P K = = = = 7.3 Output energy (J) Efficiency = Input energy (J) 2 (2 kg)(9.8 m/s )(3 m) 58.8 J 2 (1/ 2)(2 kg)(7 m/s) 49 J Efficiency = (49 J)/(58.8 J) = 0.83 or 83%
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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
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Page 2 of 3 In problems 6 and 7, yo
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Name: Date: 4.1 Percent Error When
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Page 3 of 3 1. The lab group conduc
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Page 2 of 3 1. A bicyclist travels
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Name: Date: 4.1 Velocity Speed and
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Name: Date: 4.2 Calculating Slope f
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Name: Date: 4.2 Analyzing Graphs of
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Page 3 of 4 1. For each position-ti
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Name: Date: 4.2 Analyzing Graphs of
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Name: Date: 4.3 Acceleration Accele
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Name: Date: 4.3 Acceleration and Sp
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Page 3 of 3 3. Graph 3: 4. Find acc
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Page 2 of 3 Example 1: How fast wil
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Name: Date: 5.1 Ratios and Proporti
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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 and 164: Name: Date: 6.3 Collisions and Cons
Page 165 and 166: Name: Date: 6.3 Rate of Change of M
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: Name: Date: 7.3 Power in Flowing En
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
Page 215 and 216: Name: Date: 10.1 Density The densit
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Page 219 and 220: Name: Date: 10.3 Boyle’s Law The
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Page 223 and 224: Name: Date: 10.4 Archimedes 10.4 Ar
Page 225 and 226: Name: Date: 10.4 Narcís Monturiol
Page 227 and 228: Name: Date: 10.4 Archimedes’ Prin
Page 229 and 230: Name: Date: 11.1 Layers of the Atmo
Page 231 and 232: Page 2 of 2 Reading reflection 1. H
Page 233 and 234: Page 2 of 3 Using temperature data
Page 235 and 236: Page 1 of 2 11.3 Joanne Simpson 11.
Page 237 and 238: Name: Date: 11.3 Weather Maps You h
Page 239 and 240: Name: Date: 11.3 Tracking a Hurrica
Page 241 and 242: Page 3 of 4 Hurricane Andrew crosse
Page 243 and 244: 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 Reading reflection 1. H
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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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PES Skill Sheets.book - Capital High School

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