exam1review - Today Exam#1 Review Exam#1 is Thursday Feb 12...

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ISP209s9 Lecture 9 -1- Today – Exam #1 Review Exam #1 is Thursday Feb. 12 in this room, BPS 1410 The exam is all multiple choice questions. There are a few questions where you will have to use a formula, so bring your calculator . Bring your student ID You will have the full 80 minutes for the exam. You can bring one sheet of notes (front and back)
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ISP209s9 Lecture 9 -2- Program for Today We will read through the review sheet. This is posted under the reading assignment for today’s class. Some of the exam problems will be very close to homework problems. Some of the exam problems will be similar to the “Concept Checks” in Hobson
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ISP209s9 Lecture 9 -3- Basics Know scientific notation and be able to recognize that for example, 0.003 is the same as 3.0E-3. Know Gm, Mm, cm, mm, mm. For example know 1 m = 1x10 6 mm and be able to do a simple conversion Know the characteristics of science and pseudoscience. Know the SI units for some of the basic quantities we have been working with Position – m (meters) Time – s (seconds) Speed – m/s Acceleration – m/s^2 Force – N (Newtons) Mass – kg (kilograms)
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ISP209s9 Lecture 9 -4- The Scientific Method Science – No theory can ever be proven true. We are always looking for theories that work better. Pseudoscience (not bad, just not science) The hypothesis is not at risk. If data does not agree with the hypothesis, then the data is assumed to be wrong. Some facts are ignored. Exploit the controversies and inadequacies in a competing theory. Portrayed as an underdog being punished by the scientific establishment. Reliance on fear and other emotions, or reliance on a lack of knowledge People who do pseudoscience usually do not publish in normal scientific journals.
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ISP209s9 Lecture 9 -5- Scalars, Vectors, and Tensors Know what a vector and scalar is A tensor is a generalization of these quantities in multiple dimensions. The “rank” of a tensor gives the dimension. Rank 0 is a scalar Rank 1 is a vector Rank 2, or higher, describes a more complex quantity that has two directions and two magnitudes. The metric of space-time, or the curvature of space time are examples.
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