Teaching Modern Physics - QuarkNet - Fermilab

More documents

Recommendations

Info

Real Radioactive Measurements & The Half-Life of Cesium-137 I. Background Use the Geiger counter to measure the counts in the room for three one-minute intervals. Find the average. Use this count for normal background radiation. II. Rocks Use the Geiger counter to measure the counts of the radiation for several different rock samples. For each sample time three one-minute intervals, find the average, and calculate the net count for that sample by subtracting the background radiation. Rock Name Average Count Net Count Which of these rock samples appear to be radioactive? III. Fiesta Ware Use the Geiger counter to measure the counts of the radiation for Fiesta Ware. Time three one-minute intervals, find the average, and calculate the net count. Fiesta Ware Average Count Net Count Is the Fiesta Ware more or less radioactive than the rocks? How can you tell? IV. Cesium-137 We will time a sample of Cesium-137 for twelve minutes. We will record the count for each one-minute time interval for the twelve minutes, then calculate net count. 65 Average =
Time (min) 1 2 3 4 5 6 7 8 9 10 11 12 Count Net Count While we’re collecting data, prepare a piece of graph paper to graph Net Count Decayed vs. Time and start plotting points. Analysis: What does the graph of Net Count Decayed vs. Time look like? Does it look like the Donkey Kong dice graph? What was the original net count? _________ What is half of the original net count? _________ How much time elapsed between the original and half of the original? _________ This is the half-life of Cesiun-137. What is 1/4 of the original net count? ________ How much time elapsed between the original and 1/4 the original? _________ How many half-lives is this time interval? _________ Look up the half-life of uranium. _________ Fiesta Ware contains uranium. If we timed the Fiesta Ware for twelve minutes and graphed the Net Count vs. Time, how would you expect the graph look? Explain your reasoning. Conclusion: 66
Page 1 and 2:
Materials for Teaching Modern Physi
Page 3 and 4:
Which activities did you use in you
Page 5 and 6:
Materials for Teaching Modern Physi
Page 7 and 8:
QuarkNet is a nationwide program th
Page 9 and 10:
Radioactivity PowerPoint Presentati
Page 11 and 12:
Problems & Worksheets * This activi
Page 13 and 14:
The Cloud Chamber: In the Nobel Pri
Page 15 and 16:
Instructions for teacher to give to
Page 18 and 19:
Teacher’s Key Constant Velocity P
Page 20:
Sample Problem: Free Fall and Proje
Page 23 and 24:
3. Cindy drops a cherry pit out the
Page 25 and 26:
2. Running at 2 m/s, Chris, the 50-
Page 27 and 28: 3. A 55-kg swimmer is standing on a
Page 29 and 30: Analysis to prove that momentum was
Page 32 and 33: Teacher’s Key Circular Motion Pro
Page 34 and 35: Student Worksheet Constant Accelera
Page 36 and 37: Teacher’s Key Constant Accelerati
Page 38: The Electron 1. What is the value o
Page 41 and 42: 5. A negatively charged oil drop we
Page 44 and 45: The History of the Electron Workshe
Page 46 and 47: Student Worksheet Motion of Charged
Page 48: Particle Quiz 2 Answer each questio
Page 51 and 52: . What is the direction of the magn
Page 53 and 54: High V The Three Experiments in One
Page 55 and 56: For path B… The cathode ray inter
Page 57 and 58: In his experiment, Millikan tried t
Page 60 and 61: Notes on the Electron PowerPoint Pr
Page 62 and 63: Student Worksheet Index of Refracti
Page 64 and 65: Teacher’s Key Index of Refraction
Page 66 and 67: 4. A common particle detector techn
Page 68 and 69: Student Worksheet WARP SPEED Step 1
Page 70 and 71: Step 1. Select Race for Energy and
Page 72 and 73: Step 1. Select Law ‘n Order. Step
Page 74: Teacher’s Notes The Half-Life of
Page 77: a. What do the graphs of the class
Page 82 and 83: 1. What is half-life? Half-Life Pra
Page 84 and 85: Radioactivity The emission of alpha
Page 86 and 87: Beta Particle • An electron emitt
Page 88: Penetrating Power Radioactive Sourc
Page 91 and 92: . How far does the muon travel, as
Page 93 and 94: 4a. Can a person, in principle, tra
Page 95 and 96: 4. In a high-energy collision betwe
Page 98 and 99: Modern Physics The Ultraviolet Cata
Page 100 and 101: By the way, the y-axis of these gra
Page 102 and 103: 5. OK, so that’s real data from r
Page 104: . Sketch a graph of this equation:
Page 107 and 108: 4. Calculate the wavelength of the
Page 109 and 110: 5. An air rifle is used to shoot 1-
Page 111 and 112: 4. The work function for potassium
Page 113 and 114: 100
Page 115 and 116: 102
Page 117 and 118: 6. Describe the quantum-mechanical
Page 119 and 120: 106
Page 121 and 122: Draw Geiger, Marsden, and Rutherfor
Page 123 and 124: Explain why Balmer/Rydbergh’s for
Page 125 and 126: 112
Page 127 and 128: 10. Describe how particle physics a
Page 129 and 130:
Particle Acceleration (Principles)
Page 131 and 132:
Electric Field and Acceleration +
Page 133 and 134:
Multistage Accelerators (LINAC) 1 2
Page 135 and 136:
Particle Accelerators Why were they
Page 137 and 138:
Cyclotrons are constructed as two
Page 139 and 140:
126
Page 141 and 142:
QUIZ ON PARTICLE ACCELERATORS 1. De
Page 143 and 144:
130
Page 145 and 146:
There are 12 elementary particles t
Page 147 and 148:
134
Page 149 and 150:
136
Page 151 and 152:
6. What magnetic field intensity is
Page 153 and 154:
And finally, we need to remember sp
Page 155 and 156:
Z Boson Mass Reconstruction for DØ
Page 157 and 158:
1 Z Boson Mass Reconstruction for D
Page 159 and 160:
1 Z Boson Mass Reconstruction for D
Page 161 and 162:
3D Z Boson Mass Reconstruction Answ
Page 163 and 164:
150
Page 165 and 166:
7. J. J. Thompson applied a net for
Page 167 and 168:
d.) energy / a silicon detector and
Page 169 and 170:
1) A 2) E 3) E 4) B 5) B 6) B 7) C
Page 171 and 172:
16. What are the three particles th
Page 173 and 174:
16. What are the three particles th
Page 175 and 176:
Anticharm ( c ) Antimatter Quark Ch
Page 177 and 178:
Gluon Gauge boson Force carrier: St
Page 179 and 180:
3. -1 charge 4. Positron 4. Antimuo
Page 181 and 182:
Standard Model Review - Answer Key
Page 183 and 184:
5. Now draw the p vectors of p + an
Page 185 and 186:
172
Page 187 and 188:
5. Now draw the p vectors of p + an
Page 189 and 190:
176
Page 191 and 192:
Newton’s Universal Law of Gravita
Page 193 and 194:
II. Intended Activities and Approxi
Page 195 and 196:
All questions from project written
Page 197 and 198:
periodicals and newsletters. The co
Page 199 and 200:
Fermilab’s Accelerators This is a
Page 201 and 202:
188
Page 203 and 204:
190
Page 205 and 206:
A Game for Building a Detector http
Page 207 and 208:
194
Page 209 and 210:
us. An alternate “radiation” so
Page 211 and 212:
198
Page 213 and 214:
Day 4: 1. Question of the Day: A ha
Page 215 and 216:
Teacher Resources: 1. Standard Mode
Page 217:
204
show all

Teaching Modern Physics - QuarkNet - Fermilab

Create successful ePaper yourself

Delete template?

Save as template?