Physics 121C Midterm 2 Information

Where:

• All students in PAB A102.
• Check Tycho for your seat assignment
  

When:

• Monday November 3
  

Coverage:

You are still responsible for material  covered on the first midterm, but the focus of the second midterm is on material covered in the past 3 weeks.

• Lecture/Text material: Chapters 4, 5, 6, 7:  Newton's Laws and their application; work and energy.
• Tutorials 2 - 5:  Two-D motion; forces, work and kinetic energy, energy conservation
  
• Labs 1 - 5:  1-D kinematics; Free fall and projectiles; 1-D dynamics; Newton's laws and tension; work and energy
  
• Homework:  Tycho weeks 3 and 4 (not momentum).  Tutorial 2, 3, 4, 5.  Supplemental through Oct. 24 (plus review problems on 10/31).
  

Important Lecture Concepts:

• Chapter 4:  Newton's Laws
• Newton's First Law -- Inertia
• Newton's Second Law -- F = ma
• Newton's Third Law -- Action/Reaction
• Identifying third-law pairs
• Various forces:  gravitational; Hooke's Law; normal, other contact forces, other non-contact forces
• Chapter 5:  Application of Newton's Laws
• Free body diagrams
• Friction -- static and kinetic (or dynamic)
• Circular motion
• Drag -- conceptual, not integration with F(v)
• Center of Mass is not explicitly on this midterm; it will be on the 3rd midterm.
• Numerical integration is NOT covered.
  
• Chapter 6:  Work and Energy
• Work -- integrating force over displacement, including vector components and scalar (dot) product
  
• kinetic energy -- energy associated with motion
  
• work - kinetic energy theorem -- net work = change in kinetic energy
• power -- rate of doing work.
• Chapter 7:  Conservation of Energy
• Potential Energy, and relationship to force
• Conservation of Mechanical Energy
• potential energy in gravity; with Hooke's Law spring
• NOT covered:  E = mc^2, quantization of energy  (see Physics 123)
  

• Total of 100 points, distributed as:
• 25 points multiple choice lecture question
• 25 point multiple choice lab question
  
• 30 point short answer lecture question
• 20 point short answer tutorial question

You Must Bring:

Scan-Tron Form for Multiple-choice part of exam

Dark Pencil that marks scan-tron form so that it can easily be read by an automated scanner.

You May Bring:

• Calculator
• Ruler or straight edge
• one 8.5x11 page of notes (both sides)
You will be expected to know (or have on your notes) basic formulas and the appropriate trigonometry or geometry. You should also know the important constants.

You May NOT Bring (or at least they must be turned off and not taken out of your backpack):

• Wireless devices, including laptops, blackberries, cell phones, etc.
  

Review on your own.  Make a list of questions about the points you don't understand, discuss it with your classmates, and ask Prof. Olmstead (or any of the other instructors at the Study Center) during office hours about any questions that you can't answer.  Make sure you understand how to do all the Webassign, supplemental, and tutorial problems, as well as the material covered in the text, lecture, tutorial, and lab.  Work through additional problems from the book or practice exams.  Finally, your goal in this class should be to understand the physics, not to get a good grade on the exam.  I know it's hard to believe, but you will actually do better on the exam if you approach it with the goal of understanding physics.

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