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Special relativity

IB Physics SL test 2014 1-2

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Physics
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Physics
Physical quantities
Nature
Mechanics
Motion
SI derived units
Special relativity
Thermodynamic temperature
Work
Kinetic energy
Velocity
Momentum

2214-6516 16 pages M14/4/PHYSI/SPM/ENG/TZ2/XX Wednesday 7 May 2014 (morning) Physics standard level PaPer 1 INSTRUCTIONS TO CANDIDATES ? Do not open this examination paper until instructed to do so. ? Answer all the questions. ? For each question, choose the answer you consider to be the best and indicate your choice on the answer sheet provided. ? A clean copy of the Physics Data Booklet is required for this paper. ? The maximum mark for this examination paper is [30 marks]. 45 minutes ? International Baccalaureate Organization 2014 22146516 2214-6516 ? 2 ? M14/4/PHYSI/SPM/ENG/TZ2/XX 1. Which of the following is a unit of energy? A. kg m?1 s?1 B. kg m2 s?2 C. kg m s?2 D. kg m2 s?1

Physics the doppler effect

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Wave mechanics
Waves
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Relativity
Doppler effect
Special relativity
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Chapter 4.5/A2 The Doppler Effect Thursday, January 24, 2013 6:20 PM ? Formulas & Theorems Covered Today: Frequency Formula Moving Source Toward: Fo= Fs/ 1- (vs /c) Away: Fo= Fs/ 1+ (vs /c) Moving Observer Toward: Fo= Fs* [1+ (vo /c)] Away: Fo= Fs* [1- (vo /c)] Wavelength Formula Moving Source ?o = ?s (1 - (vs/c)) Moving Observer Example Questions: Sound wave f= 300Hz is emitted towards approaching car (moving observer towards). Wave is reflected back f2= 315Hz (moving source towards). V of the car? ? ? v= 8.29 m/s ? A train with siren of 500Hz is moving at a constant speed of 8.0 m/s. What f does observer hear? ? Calculate the train f moving towards and away and that is the range of frequency that the observer will hear. ?
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