Announcements – 11 Dec 2014 · Announcements – 11 Dec 2014 1. Prayer 2. Tutorial lab: Open...
Transcript of Announcements – 11 Dec 2014 · Announcements – 11 Dec 2014 1. Prayer 2. Tutorial lab: Open...
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Announcements – 11 Dec 2014 1. Prayer 2. Tutorial lab: Open during reading days and finals, but the TAs have their
own exams to worry about, so staffing may vary significantly from normal. 3. Rate the tutors: http://gardner.byu.edu/tas/tutorrating.php 4. Upcoming dates:
a. Thu Dec 11, 5:30 – 7 pm - Jerika final exam review, C295 ESC b. Fri Dec 12, 6 – 7:30 pm - Jerika final exam review, C295 ESC c. Fri Dec 12 - All extra credit & late HW must be turned in by
midnight; this includes all TA-graded stuff as well as all computer-graded stuff
d. Sun Dec 14 - BYU Instructor/course ratings due http://studentratings.byu.edu (2 pts extra credit)
e. Tue Dec 16 - Final exam in class (7-10 am or 8-11 pm) f. Wed or Thu Dec 17-18 - Final exams graded, uploaded g. Mon Dec 22 (?) - Grades finalized
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“Which of the problems from last night's HW assignment would you most like me to discuss in class today?”
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Quick Semester Review aka “What was this class all about?”
1. The universe makes sense!
a. To me: the order in the universe reflects the order of God b. The job of a scientist is to discover and analyze this order, and use
knowledge gained to make additional predictions 2. Mathematics is the “language” of the universe
a. Algebra. Example: Kinematics equations i. Position ii. Velocity iii. Acceleration
b. Geometry. Example: Area/volume of sphere c. Trigonometry. Examples: Vectors, oscillations d. Logarithms. Example: decibel scale, work in isothermal process e. Calculus. Examples: slope of position graph = velocity (that’s a
“derivative”); area under curve of P-V diagram = work done by gas (that’s an “integral”)
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3. Most predictions follow from very basic natural laws, or “blueprints”. Examples:
a. Newton’s Laws of Motion i. Newton 1: Inertia ii. Newton 2: Forces
1. Bag of tricks: Weight, normal, tension, friction, etc. 2. Torques & rotational quantities
iii. Newton 3: Partner forces b. Newton’s Law of Gravity
i. Kepler’s Laws c. Conservation of work & energy
i. kinetic energy ii. potential energy iii. rotational kinetic energy iv. random kinetic energy: “internal energy”
1. heat transfer / thermal expansion / calorimetry 2. laws of thermodynamics, Carnot theorem
d. Conservation of momentum (if no outside net force) e. Conservation of angular momentum (if no outside net torque)
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4. Fluids: the behavior of large numbers of objects (e.g. molecules) can
be described using overall/average properties a. Basics
i. Static: Archimedes (buoyancy) ii. Dynamic: Bernoulli (cons. of energy; pressure vs. speed)
b. Kinetic theory to connect microscopic to macroscopic c. Gases
i. ideal gas law ii. PV diagrams iii. laws of thermodynamics
5. Waves: transferring energy via oscillations
a. Mechanical waves b. Light waves (including heat transfer via radiation) c. Sound waves
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Requested Problems from Past Exams…
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