Lecture 08a Exam 1 - • Answers are generally worth ~1/3...

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ME 221 Exam 1 Review 1 ME 221 Statics Exam #1 Review
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ME 221 Exam 1 Review 2 Homework Due today: Chapter 2 problems: 61, 64, 70, 71, 72, 82, 86, 94, 105 & 113 Grades posted in Angel HW #1 & Quiz #1 (and solutions) HW #2 & Quiz #2 (solutions posted) HW #3 solutions to be posted late today
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ME 221 Exam 1 Review 3 Exam 1 Wednesday, September 17
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ME 221 Exam 1 Review 4 Exam Format Similar to homework problems 5 or 6 (maybe 7) problems No new concepts Closed books and closed notes 15% of final grade Will need a calculator Back rows must sit every other seat
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ME 221 Exam 1 Review 5 Exam 1 Helpful Hints Study by working homework problems Review the examples in the book Read the exam questions carefully Work the problems you know first Use a logical flow to show your knowledge Be complete
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ME 221 Exam 1 Review 6 Exam 1 Pitfalls Vectors have both magnitude and direction Most answers will have units Calculated answers should be in decimal form Use 3 significant figures where appropriate
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Unformatted text preview: • Answers are generally worth ~1/3 of points • Steps leading to answers are worth ~2/3 ME 221 Exam 1 Review 7 Exam 1 Topics • All of Chapters 1 & 2 except 2.11 Springs • Newton’s Laws • Units • Scalars & vectors; defining, adding, etc. • Laws of sine and cosine • Resolution of a vector into components ME 221 Exam 1 Review 8 Exam 1 Topics • 3D coordinates & unit base vectors • Directional cosines • Nonorthogonal vector components • Scalar products of vectors • 2D & 3D equilibrium problems • Drawing a good free-body diagram Exam 1 Exams will be graded Wednesday night Scores will be posted on Angel late Wednesday or early Thursday Last day to drop with full refund is Thursday Exam 1 Historical Data Of those students below 60 points on exam 1: ~30% dropped the course ~24% received 0.0 for final grade ~46% passed the course None has finished above a 2.5 final grade...
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