2010 PHYSICS 002C Lecture 02

2010 PHYSICS 002C Lecture 02 - PHYSICS 002C Review: Lecture...

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PHYSICS 002C Lecture 02 March 31, 2010 Serway and Jewett Chapter 12 – Oscillatory Motion Review : Our representation of the physical world. 1 Behind these notions, the two postulates: of time and space Chap 12.1,2 Motion of a particle on a spring & Hooke’s law: kx F s Rbt. Hooke’s 1678 anagram: "ceiiinosssttuv" - Ut tensio, ic vis , meaning “As the extension, so the force” s DEMO : Spring with weights. New: Chap 12.3 Energy of simple harmonic motion Clicker Q1 : What is the elastic potential energy of a 1 kg mass on a spring with spring constant 1 N/m displaced from equilibrium by 1 m? Hooke balance wheel a) 1 J; b) 10 J; c) 5 J; d) 0.1 J; e) 0.5 J. Clicker Q2 : What is period of a 1 m pendulum grandfather clock orbiting Earth? a) 0 s; b) 1 s; c) 2 s; d) 3 s; e) s. Clicker Q3 : If I double the mass of a pendulum bob of negligible diameter compared to the length of its string, the period a) stays the same; b) doubles; c) halves; d) increases by a factor of 2 ; e) increases by a factor of 4. DEMO
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2010 PHYSICS 002C Lecture 02 - PHYSICS 002C Review: Lecture...

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