Investigate reflection, refraction, diffraction, and interference of sound waves. Compare mechanical and electromagnetic waves. Determine the speed of sound experimentally and describe the effects various materials and temperatures on sound. Determine the speed of sound experimentally using various materials and temperatures Sound velocity: vs= f λ; Sound velocity (using air temperature): vs= 331.5m/s + (0.56 m/s oC) (T). Compare the wave characteristics of natural auditory phenomena. Holt Physics Ch. 12 Sound 12.1 Sound Waves 12.2 Sound Intensity and Resonance 12.3 Harmonics Practice Problems p. 415 Practice Problems p. 427 Quick Lab – Resonance p. 418 Quick Lab – A Pipe Closed at One End – p. 425 Graphing Calculator Practice p. 436 Skills Practice Lab – Speed of Sound pp. 440-441 Vernier Physics – Sound Waves and Beats # 33 p. 33-1 Slinks: ( Sound Resonance Harmonics Acoustics Vocabulary Compression, rarefaction, pitch, Doppler effect, intensity, decibel, resonance, fundamental frequency, harmonic series, timbre, beat Performance Tasks Why it Matters – Conceptual Challenge – Music from a Trumpet – Suppose you hear music being played from a trumpet that is across the room from you. Explain compressions and rarefactions as they relate to the sound waves that reach your ear. Were the air particles that are vibrating near your ear carried across the room by the sound wave? How do you know? Decibel Scale Zero on the decibel scale does not mean zero intensity or that there is no sound but instead that the sound is inaudible. Using table 2 on p. 417 write a paragraph explain how the sound intensity of a subway compare with that of a normal conversation. Science, Technology, Society – Noise Pollution – Students will read the article on Noise Pollution and do researching the issue #3.
CLE 3231. Inq.4 Apply qualitative and quantitative measures to analyze data and draw conclusions that are free of bias. CLE 3231. Inq.5 Compare experimental evidence and conclusions with those drawn by others about the same testable question. CLE 3231. Inq.6 Communicate and defend scientific findings. of sublimation Change in Heat: ΔQ= mHf and ΔQ= mHv. Explore thermal expansion and contraction Linear Expansion: Δl = li αΔT ; Volumetric Expansion: ΔV= ViβΔT. Apply the second law of thermodynamics to the Carnot engine. Apply the Laws of Thermodynamics to the atmospheric levels of the earth (i.e., greenhouse effect and climate change). Recognize that absolute zero is the absence of molecular kinetic energy. Relate the First Law of Thermodynamics as an application of the Law of Conservation of Energy and heat transfer through conduction, convection, and radiation. Heat Lost = Heat Gained, QL= QG. Holt Physics Chapter 10 Thermodynamics 10.1 Relationship Between Heat and Work 10. 2 The First Law of Thermodynamics 10.3 The Second Law of Thermodynamics Practice Problems A p. 338 Practice Problems B p. 346 Practice Problems C p. 355 Quick Lab – Entropy and Probability- p. 357 SciLinks: () Temperature Scales James Prescott Joule Conduction and Convection Specific Heat Capacity Heat Pumps Greenhouse Gases Thermodynamics Heat Engines Stirling Engines Between 500C and 600C? Greater than 600C? Students will explain their answer choice. Why it Matters – Climate and Clothing Students will read the article on p. 312. Students will research to find additional examples of specific clothing types that are designed for particular climates. Students are to search for unusual examples. Students are to choose an example and create a brochure that “sells” the clothing by explaining how the clothing suits a particular climate. Students should include photographs or illustrations in their brochure. Science, Technology, Society – Global Warning – Students will read the article on pp. 332-333 and do researching the issue #1 Why it Matters – Conceptual Challenge – Cooling Engines Student use the second law of thermodynamics to explain why an automobile engine requires a cooling system to operate. Students will provide a diagram to Illustrate their answer.