Today:  Finish Chapter 20  Review Session  Midterm 2: Fri Apr 17 Chs 9, 11, 13, 14, 15, 19, 20.

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Presentation transcript:

Today:  Finish Chapter 20  Review Session  Midterm 2: Fri Apr 17 Chs 9, 11, 13, 14, 15, 19, 20

Review for Midterm 2  Midterm 2: Fri Apr 11 Chs 9, 11, 13, 14, 15, 19, 20  45 multiple-choice questions  Bring a No. 2 pencil and an eraser  You will be given a periodic table Resources for studying:  go through all questions, exercises, and examples we did during lectures, homeworks and posted solutions  revise lecture slides carefully, read book and “check yourself” qns for support  additional questions in today’s review: do NOT try these until you have actually studied the material from the lectures  me if you have any questions or want to meet

Recall: Chapter 9: Gravity: F= Gm 1 m 2 /d 2, apparent weight = force exerting against supporting surface, tides, black holes Chapter 11: Atomic Structure: nucleus (protons + neutrons) & electrons, atomic number, atomic mass, periodic table, isotopes, element, molecule, compound, antimatter. You’ll be given a periodic table. Chapter 13: Liquids: Pressure = force/area, liquid pressure = weight density x depth, buoyant force, volume of fluid displaced = submerged volume of object, Archimedes principle: buoyant force = weight of fluid displaced, principle of flotation, Pascal’s principle, surface tension, capillarity, adhesion, cohesion Chapter 14: Gases and Plasmas: atmospheric pressure, Archimedes’ principle for air, barometer, Boyle’s law, Bernoulli’s principle for pressure of moving fluid, plasma Chapter 15: Heat: temperature, thermometer, absolute zero, internal energy, heat flows from hotter to colder object, specific heat capacity, thermal expansion, anomalous expansion of water Chapter 19: Vibrations and waves: simple harmonic motion, amplitude, frequency, period, frequency = 1/period, wavelength, wave speed = frequency x wavelength, transverse vs longitudinal, interference, Doppler effect, bow and shock waves, sonic boom Chapter 20: Sound: speed of sound, wave of compressions and rarefactions, reflection, refraction, natural frequency, forced vibration, resonance, interference, beats, beat freq =f 1 –f 2

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