phys1441-spring08-012808-post

phys1441-spring08-012808-post - PHYS 1441 Section 002...

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Monday, Jan. 28, 2008 PHYS 1441-002, Spring 2008 Dr. Jaehoon Yu 1 PHYS 1441 – Section 002 Lecture #4 Monday, Jan. 28, 2008 Dr. Jae hoon Yu Some Fundamentals One Dimensional Motion Displacement Speed and Velocity Acceleration Motion under constant acceleration Homework #2 is due 9pm, next Monday, Feb. 4!!
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Monday, Jan. 28, 2008 PHYS 1441-002, Spring 2008 Dr. Jaehoon Yu 2 Announcements E-mail distribution list: 30 of you subscribed to the list so far • 3 point extra credit if done by midnight Wednesday, Jan. 30 • I will send out a test message Thursday evening – Need your confirmation reply Î Just to me not to all class please…. 40 of you have registered to homework roster, of whom 40 submitted homework #1 – Excellent!! Physics Department colloquium schedule at http://www.uta.edu/physics/main/phys_news/colloquia/2008/Spring2008.html Quiz results – Average: 4.9/11 • Equivalent to 40/100 – Top score: 11/11 Exam dates –1 st Term: Wednesday, Feb. 20 –2 nd Term: Wednesday, Mar. 26 –3 rd Term: Monday, Apr. 21 – Final comprehensive: Monday, May 5
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Monday, Jan. 28, 2008 PHYS 1441-002, Spring 2008 Dr. Jaehoon Yu 3 Some Fundamentals Kinematics : Description of Motion without understanding the cause of the motion Dynamics : Description of motion accompanied with understanding the cause of the motion Vector and Scalar quantities: Scalar : Physical quantities that require magnitude but no direction • Speed, length, mass, height, volume, area, magnitude of a vector quantity, etc Vector : Physical quantities that require both magnitude and direction • Velocity, Acceleration, Force, Momentum • It does not make sense to say “I ran with velocity of 10miles/hour.” Objects can be treated as point-like if their sizes are smaller than the scale in the problem – Earth can be treated as a point like object (or a particle) in celestial problems • Simplification of the problem (The first step in setting up to solve a problem…) – Any other examples?
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Monday, Jan. 28, 2008
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This note was uploaded on 10/21/2009 for the course PHYS phys1441 taught by Professor Dr.jhaehoonyou during the Spring '08 term at UT Arlington.

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phys1441-spring08-012808-post - PHYS 1441 Section 002...

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