MasteringPhysics2b

MasteringPhysics2b - MasteringPhysics: Assignment Print View

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MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrint?assignmentI. .. 1 of 9 10/4/2007 3:36 PM [ Print View ] PHCC 141: Physics for Scientists and Engineers I - Fall 2007 2b. One Dimensional Kinematics Due at 11:59pm on Wednesday, September 5, 2007 Hide Grading Details Number of answer attempts per question is: 5 You gain credit for: correctly answering a question in a Part, or correctly answering a question in a Hint. You lose credit for: exhausting all attempts or requesting the answer to a question in a Part or Hint, or incorrectly answering a question in a Part. Late submissions: reduce your score by 100% over each day late. Hints are helpful clues or simpler questions that guide you to the answer. Hints are not available for all questions. There is no penalty for leaving questions in Hints unanswered. Grading of Incorrect Answers For Multiple-Choice or True/False questions, you lose 100% / ( # of options - 1 ) credit per incorrect answer. For any other question, you lose 3% credit per incorrect answer. Kinematic Vocabulary One of the difficulties in studying mechanics is that many common words are used with highly specific technical meanings, among them velocity , acceleratio n , position , speed , and displacement . The series of questions in this problem is designed to get you to try to think of these quantities like a physicist. Answer the questions in this problem using words from the following list: position A. direction B. displacement C. coordinates D. velocity E. acceleration F. distance G. magnitude H. vector I. scalar J. components K. Part A Velocity differs from speed in that velocity indicates a particle's __________ of motion. Enter the letter from the list given in the problem introduction that best completes the sentence. ANSWER: B Part B Unlike speed , velocity is a __________ quantity. Enter the letter from the list given in the problem introduction that best completes the sentence. ANSWER: I Part C A vector has, by definition, both __________ and direction. Enter the letter from the list given in the problem introduction that best completes the sentence. ANSWER: H Part D
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MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrint?assignmentI. .. 2 of 9 10/4/2007 3:36 PM Once you have selected a coordinate system, you can express a two-dimensional vector using a pair of quantities known collectively as __________. Enter the letter from the list given in the problem introduction that best completes the sentence. ANSWER: D Part E Speed differs from velocity in the same way that __________ differs from displacement . Hint E.1 Definition of displacement Hint not displayed Enter the letter from the list given in the problem introduction that best completes the sentence. ANSWER:
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This note was uploaded on 10/28/2008 for the course PH 141 taught by Professor Toki during the Fall '08 term at Colorado State.

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MasteringPhysics2b - MasteringPhysics: Assignment Print View

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