Fall wk 9 – Mon.29.Nov.04 Welcome, roll, questions, announcements Review our work this quarter Looking ahead – next quarter Portfolio and self-eval workshop.

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Presentation transcript:

Fall wk 9 – Mon.29.Nov.04 Welcome, roll, questions, announcements Review our work this quarter Looking ahead – next quarter Portfolio and self-eval workshop Looking ahead – this week Energy Systems, EJZ

Seminar motivates science learning Questions/problems: Are we running out of oil? Are carbon-based fuels hurting health and environment? Are greenhouse gases warming the Earth? Solutions? Alternate fuels for cars; mass transport systems Nuclear or renewables for electricity H fuel cells?

Energy and Power What types of energy have we learned about? Energy transformations Ex: Sun  warm Earth’s water  weather  storms, wind power  electricity  toaster oven Energy systems Ex: LNG to Evergreen  burn in boilers  steam  heat rooms  relaxed or alert students  learning Equilibria and oscillations Equilibria where F=0 or U=flat. Countless natural systems oscillate in approximate U ~ x 2 wells. Energy comparisons

Energy data

Calculus facilitates richer analyses Three basic approaches to math problems: Graphing (sketching relationships) Numerical approximations (calculators & computers) Analysis: exact solutions (algebra, trig, calculus) Differentiation: Slope = derivative = rate of change Calculus invented for physics, e.g. variable forces Polynomials: Trig:

Your research projects go deeper In a series of workshops, independently, and with your team, you have by now: Articulated a question you want to investigate Proposed several different hypotheses to possibly answer your question Researched articles and books on your question Planned how to test your hypotheses Next quarter, you will carry out your research.

Research presentations tomorrow

Looking ahead – next quarter Electromagnetism: How is electrical power generated and transmitted? Light, spectra, and quantum mechanics Sun, Earth, and Climate: Earth’s climate and weather Effects of solar storms on Earth Role of the Sun in climate change We can use calculus to do more realistic physics now!

Calculus in winter quarter Using differentiation: Optimization: what is the most efficient relationship? Exponentials and logs: calculating changes in growth Electromagnetism satisfies wave equation! (Maxwell) Integration: Inverse of differentiation (Ex: velocity  acceleration) Calculate totals for changing phenomena Electromagnetism: Changing magnetic fields create electric fields (induction)

Portfolio and self-eval workshop Let’s look at the guidelines linked to our homepage, and the pink worksheet Your portfolio: sections and paragraphs Your self-evaluation Start with your eval prep sheet Integrate with your paragraphs Choose one or two good examples to DEMONSTRATE your learning

Looking ahead – this week Tuesday: Research presentations Wednesday: Post your research exam Q on WebX Thursday: Homework due, questions answered Get your final exam in class Potluck? Friday: written exams due by 2:00 Next Monday: inQsit ESfinalQuiz due by 10 am