Teaching Modern Physics - QuarkNet - Fermilab

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Student Worksheet Motion of Charged Particles in a Magnetic Field 1. Three particles move through a constant magnetic field and follow the paths shown in the drawing. Determine whether each particle is positively charged, negatively charged, or neutral. Give a reason for each answer. 2. Three particles have identical charges and masses. They enter a constant magnetic field and follow the paths shown in the picture. Which particle is moving the fastest, and which is moving the slowest? Justify your answers. ∗ Pictures are from Webassign. 33 ∗
Teacher’s Key Motion of Charged Particles in a Magnetic Field 1. Three particles move through a constant magnetic field and follow the paths shown in the drawing. Determine whether each particle is positively charged, negatively charged, or neutral. Give a reason for each answer. #1 is positive. #2 is neutral. #3 is negative. 2. Three particles have identical charges and masses. They enter a constant magnetic field and follow the paths shown in the picture. Which particle is moving the fastest, and which is moving the slowest? Justify your answers. ∗ Pictures are from Webassign. Fast Slow, the order is 2 – 3 – 1 Greater velocity means greater force because q & B are the same. 34 ∗
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 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 and 78: a. What do the graphs of the class
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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
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Modern Physics The Ultraviolet Cata
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By the way, the y-axis of these gra
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5. OK, so that’s real data from r
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. Sketch a graph of this equation:
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4. Calculate the wavelength of the
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5. An air rifle is used to shoot 1-
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4. The work function for potassium
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6. Describe the quantum-mechanical
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Draw Geiger, Marsden, and Rutherfor
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Explain why Balmer/Rydbergh’s for
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10. Describe how particle physics a
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Particle Acceleration (Principles)
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Electric Field and Acceleration +
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Multistage Accelerators (LINAC) 1 2
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Particle Accelerators Why were they
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Cyclotrons are constructed as two
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QUIZ ON PARTICLE ACCELERATORS 1. De
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There are 12 elementary particles t
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6. What magnetic field intensity is
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And finally, we need to remember sp
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Z Boson Mass Reconstruction for DØ
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1 Z Boson Mass Reconstruction for D
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1 Z Boson Mass Reconstruction for D
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3D Z Boson Mass Reconstruction Answ
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7. J. J. Thompson applied a net for
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d.) energy / a silicon detector and
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1) A 2) E 3) E 4) B 5) B 6) B 7) C
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16. What are the three particles th
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16. What are the three particles th
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Anticharm ( c ) Antimatter Quark Ch
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Gluon Gauge boson Force carrier: St
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3. -1 charge 4. Positron 4. Antimuo
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Standard Model Review - Answer Key
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5. Now draw the p vectors of p + an
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5. Now draw the p vectors of p + an
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Newton’s Universal Law of Gravita
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II. Intended Activities and Approxi
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All questions from project written
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periodicals and newsletters. The co
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Fermilab’s Accelerators This is a
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A Game for Building a Detector http
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us. An alternate “radiation” so
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Day 4: 1. Question of the Day: A ha
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Teacher Resources: 1. Standard Mode
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Teaching Modern Physics - QuarkNet - Fermilab

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