January
| Ø 4th | |||||
| Ø 11th | |||||
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Ø 18th |
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Ø 25th |
An outline of topics to be addressed each day is presented below. This list is not complete; additional items are covered for most classes. If students are absent, they should consult these pages and check with the instructor concerning material missed.
n Double Period Day
n NOTE: Unless before a number, my dashes (-) are used for punctuation
n Schedule: modified
Ø Lot of material to cover, will try to abbreviate some of it to make more time at end for a complete course review.
Ø I will be available the last 2 weekends prior to the AP exam for a course review for those students that want one
n Solution to Final Exam: Papers returned at end of period - note: not all teachers return final exams
Ø Multiple-Choice questions: Wetghted at 3/4 points each
ð 2 were deleted (1 not covered and the other was ambiguous) and some have commentary concerning the solution
ð Range of number missed (out of 58): 10 to 35
ð Averge number missed: 18
Ø Free-Response questions: There were a total of 4 parts, weighted equally. Number missed ranged from 1/2 to 2. Weighted at 5 points each
Problem 1
ð Indicate the directions chosen as positive means indicate the directions chosen as positive...
ð Very lenient grading on the first problem solving for acceleration (a not g) - unless you argued that there is no movement -
calculations will show that there is movement
ð Show your work - I will not guess at your thought process, neither will the AP program graders
Problem 2
ð Key is delta KE of block = delta PE of spring
ð Had to show one of these correctly to get any credit - all credit for recognizing both
Problem 3
ð This problem was an example of Archimedes' principle and reduced to a ratio of the densities
ð Show your work - I will not guess at your thought process, neither will the AP program graders
Ø Extra Credit quesions: Weighted at 1 point each
ð There were a total of 6 questions, weighted equally
ð Number correct ranged from 0 to 3
Ø Grades
ð Uncurved range: from 64 to 93
ð Returned 30% of points lost: final grade = raw grade + 0.3x(100 - raw grade)
ð Finals grades ranged from 75 to 95
n Lab 2-4 graded and returned - clearly state paragraph headings or lose points
n Exercise 2-5 solution notes: exercise graded and returned - lenient grading
n Quarter grades
Ø Labs and exercises counted 40% of grade and review exercises counted 60% of grade (same as 1st marking period)
Ø Added 3 points to the combined grades: marking period grades ranged from 83 to 98
n MP grade and Finals grade listed at bottom of Final. I submit these grades separately, the system combines them.
n I will cover examples and concepts relevant to part a of exercise 3-1 today. I will cover material related to part b next class
n Temperature and Kinetic Energy; We finish chapter 13 this week. Review exercise on chapter 13 next Tuesday
n Exercise 3-1 - note the due date - next Thursday
n Anyone notice the Strategist?
n Temperature and Kinetic Energy
Ø Ideal gasses and other things
Ø Continue the summary (section 13-9)
Ø Additional examples
n Exercise 3-1 - note the due date - next Thursday. Note the addition of the last problem - it is linked to part of the solution that was discussed above
n Return exercise next class: grades ranged from 99 to 100
n Temperature and Kinetic Energy
Ø Complete the summary (section 13-10)
Ø Additional example: Example 7
n FInish Exercise 3-1 (due next class)
n Start reading chapter 14: Heat - will preview next class
n Exercise 3-1 due today
n A comment on conventions, accepted definitions, consistency (best approach in all cases), etc.
n Chapter 14: Heat: Preview and 2 examples
n No Class
n Modification to Web site title bar
n Picture of a cold day (relevant to a study of heat, temperature, etc.)
n Exercise 3-1 due last Thursday, 2 students still need to submit so I can post solutions and grade them
n Schedule: Semester and remainder of this month- note the 6 lessons on electronics and related concepts
n Review exercise on chapter 13 Wednesday - will review next class and continue with chapter 14
n Chapter 14: Heat: Heat as Energy Transfer, Internal Energy, Specific Heat
n Remainder of period if time left
Ø Read sections for next period - Calorimetry, Latent Heat
Ø Study for review exercise on Wednesday - it may include some problems from the final exam
n Work on Exercise 3-2
n Review exercise on chapter 13 moved to next Wednesday - will include chapters 13 and 14 and some questions from the Final
n Schedule for remainder of January
n Chapter 14: Heat: Remaining sections - Calorimetry, Latent Heat, Heat Transfer: Conduction, Convection, Radiation - discussion of additional problems
n Examples
n Work on Exercise 3-2
n Chapter 14: Heat: Review all solutions I provided and discussed yesterday and read the material in the text. It became obvious yesterday that some had not read the material
Examples: Latent heat, example 5 from last class
n Note that heat of fusion and vaporization goes both ways - heat is released when ice is melted, etc.
n Next class we start Chapter 15: The Laws of Thermodynamics: STAY UP WITH THE READING, in order to get the most (anything) out of my presentations, discussions, etc.
n Work on Exercise 3-2: note the comments provided for each problem
n Chapter 15: The Laws of Thermodynamics - Preview
n Exercise 3-2 due next class (Tuesday)
n Review exercise on chapters 14 and 15 next Wednesday
n Chapter 15: The Laws of Thermodynamics
MLK DAY
n Schedule
n Double Period Day: Lab and review for Review next class
n Exercise 3-1 solution - graded and returned
Ø As stated many times, you must show your work - to include the number if called for (this is not a review exercise) - it will be marked incorrect if instructions not followed
Ø Clearly indicate what your answer is. If you have > 1 answer and circle one, for example, then I will grade that one lacking any further indications
Ø Gave credit for any reasonable attempt on the last one.
Ø 12 problems, counted 3 each
Ø Grades ranged from 78 to 100 (average much closer to 100)
n Lab 3-1: Virtual lab on chapters 13 and 14
n Exercise 3-2 due today
n Review exercise next class on Chapter 13 and Chapter 14
n Chapter 15: The Laws of Thermodynamics: Discuss 2 examples
n 2 teams completed the lab yesterday - congratulations. Bobbie, Emma, Kynsey, Jeremy, Elliot: Received a grade bonus
Ø One was a duplication of the initial work by Joule that was discussed in the text and repeated many times in class.
If you did not recognize this (not knowing where the fluid is), then guess what?
Ø One problem has a magnification. Clearly, if a square is magnified by a factor of 10, then the measurement taken must by multiplied by 0.10 to use in calculations.
Ø Summary: READ THE PROBLEMS
n Review Exercise on chapters 13 and 14 next class
n Analysis of PV curves what happens in the following cases?
Ø Keep T constant (isothermal)
Ø T constant but shown for different values with P and V allowed to vary for each value of T
Ø Increase T with both P and V allowed to vary
Ø Keep P constant with T and V allowed to vary (isobaric)
Ø Keep V constant with T and P allowed to vary (isovolumetric)
n How do you calculate the work done by a gas expanding slowly (keeps P constant) against a piston?
n Internal Energy for an ideal gas - calculations
Ø The equation
Ø Change in internal energy
n Chapter 15: The Laws of Thermodynamics: Summary of key ideas in sections 1, 2, 4, 5
n Examples
n Exercise 3-3 initial problems - more later
n Review exercise on chapters 13 and 14 next class: May also want to review trajectories, collisions, and reading a graph
n A demonstration
n Chapter 15: The Laws of Thermodynamics: Sections 5 (Heat Engines), 6 (Refrigerators, Air Conditioners and Heat Pumps and 7 (Entropy and the Second Law of Thermodynamics)
Why there is no conflict between Hot to Cold and Entropy
n Heat engines
Ø efficiency
Ø Carnot cyle compared to the Turing machine
Ø Absolute zero (the illusion of time?)
n Remainder of the chapter and 2 short videos
n Exercise 3-3: 6 problems
n Missing a text from yesterday.
n Review exercise on chapters 13 and 14 - note the following comment on the cover page
n Note
If the problem states "specific number not required, then just insert values in the correct final expression and provide units for the answer" it means just that.
A correct final expression is defined as one that, if evaluated without further manipulations, would give the correct answer.
If this is still not clear then "roll the dice".
n No Class
n Schedule:
Ø Note the college board recommended percentage for this portion of the course
Ø We will cover 1 chapter per week - do not get behind - read the material in accordance with the schedule
Ø Chapter 16 will be completed this week - partial list of problems assigned next class
n Check status of submissions frequently
Ø A team has not submitted Lab 3-1: Virtual lab on chapters 13 and 14: It was due 1-22-10
Ø 2 students have not submitted Exercise 3-2. Cannot post solutions until I have all of them - when today? It was due 1-22-10
Ø Ryan C needs to complete the RE. When today?
n Chapter 16: Electric Charge and Electric Field: Sections 1 through 6
n Exercise 3-3: 6 problems - Due today, 1-26-10
Ø 6 problems 5 each
Ø Grades ranged from 88 to 100
n Why I place solutions on site
Ø Always available for preview or review
Ø Listen when writing difficulty
Ø Incorrect note taking
Ø TIME to cover other things
n Ben and Elora missing exercise 3-3, Ryan C Review Exercise 7th period today
n Another demonstration of charges
n Chapter 16: Electric Charge and Electric Field: Sections 7, 8, and 9
n 8 Examples 1st 2: rest later
n Exercise 3-3: partial listing
n A lengthy discussion that applies to 2 or 3 students only: It ends now - too many class interruptions have already been made by 2 or 3 students
n Solution to Review Exercise 3-1
Ø 22 multiple choice and 4 problems - weighted equally at 21/2 points each
Ø 5 extra credit problems at 1/2 point each
Ø Grades ranged from 70 to 97
Ø Review the solutions and see me next class if you question a marking. Review the solutions first. Do not just ask me why your response was marked as wrong; be prepared to tell me why it is right.
n Some may be able to make up lost points by class participation as defined above
n Some may lose points at worst or gain none at best by failing to follow instructions and interfering with the class
n Chapter 16: Electric Charge and Electric Field
n 8 Examples 1st 5; will discuss at least 3 more next class
n Complete reading the chapter if you have not done so alreadey
n Exercise 3-4: you should have completed the first 2 last class (unless you were not paying attention - see above)
n Solution to Review Exercise 3-1: Reminder
Ø If you disagree with a solution then resubmit your paper along with a short note telling me why I should reconsider a specific response - give specific rationale
Ø Carefully check the posted solutions first along with, in some cases, a further explanation - this is part of the reasoning behind the approach
Ø If it is simply a mis marking or addition problem then state that
Ø Some teams received extra credit for early submission (same day), neatness, typed, and organization
Ø Answer the question and do not give frivolous responses
Ø If you give a response simply as obvious (for observations) then you will OBVIOUSLY receive a deduction - some are still not taking physics seriously - perhaps you will take deductions etc seriously
Ø Team 4 received a 10 point deduction for an incorrect answer (obvious)
Ø Certain teams (1, 2, and 6) will be given an opportunity to present the solutions for another grade - only the top submissions are given this opportunity
Ø Grades ranged from 90 to 104
n Ben: missing exercise 3-3, due 1-26
Ø 4 points per day (-12 as of now and counting)
Ø I do not post solutions and grade papers until all have been submitted.
n Chapter 16: Electric Charge and Electric Field-Review
n Chapter 17: Electric Potential: we start this chapter next week