School and Science: Physics: Sound

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Acoustics and You http://asa.aip.org/acou_and_you.html Find out about all the possible areas for a career in acoustics on this site by the Acoustical Society of America. Doppler Effect Activity http://www.explorescience.com/activities/Activity_page.cfm?ActivityID=45 This shockwave activity shows the way that waves originate from a single moving source, and provides a link to the same activity using two sources. Doppler Effect Demonstration http://www.sciencejoywagon.com/physicszone/lesson/otherpub/wfendt/dopplerengl.htm A Java Applet showing the how wave fronts cause the doppler effect. Doppler radar is a key forecasting tool http://www.usatoday.com/weather/wdoppler.htm Find out how the doppler effect is used to read the weather, and how it can be used in short term weather prediction. How Ultrasound Works http://www.explorescience.com/activities/Activity_page.cfm?ActivityID=43 Learn about how waves are reflected as they travel through various objects, and how these reflections are used to produce images for medical use. Longitudinal Wave Activity http://www.explorescience.com/activities/Activity_page.cfm?ActivityID=50 See how the particles move, and the graphs for acceleration, velocity and displacement when the sound frequency is changed in this activity. Looking at Sound http://www.gcse.com/waves/sound_detail.htm Detailed look at how sound can be analyzed with a microphone and oscilloscope with clear examples of expected results. Musical Acoustics http://www.phys.unsw.edu.au/music/ Learn about acoustics of different instruments, the sound spectrum, standing wave patterns supported by different air columns on this page by The University of New South Wales, Australia . Radio Transmission http://www.pbs.org/wgbh/aso/tryit/radio/# Learn about the different stages of radio transmission, how radio waves are emitted, and the difference between AM and FM radio. Science of Sound http://www.sci.mus.mn.us/sound/nocss/top.html A partnership site between the Science Museum and the Minnesota Orchestra, exploring the science and art of sound by offering performance, activities, and discussion sections. Sound http://library.thinkquest.org/27153/mechanics/physics.html Elucidates traveling and standing waves using diagrams to show harmonic and overtone wave patterns. Sound is Energy http://tqjunior.thinkquest.org/5116/sound.htm Find out about sound waves, and how their graph varies with change of pitch and volume. Check out the experiments which show that sounds are vibrations. Sound Waves and the Eardrum http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/waves/edl.html Offers an animation of how high and low pressure waves make the eardrum vibrate along with information on how the journey of sound waves affects the brain. Sound, Light and Radio Waves http://www.eoascientific.com/interactive/light_radio_sound_waves/light_radio_sound_waves.html Frequency, amplitude and wavelength effect waves of sound, radio, light in different ways. Changing one of these characteristics affects the others. Sounds Amazing http://www.acoustics.salford.ac.uk/schools/ Learn all about sounds and waves through a graphical-learning based interface in four lessons. Sounds and Noise http://www.fatlion.com/science/sound.html Try these experiments which show the physics of sound waves by using objects around the house to demonstrate how they travel. Standing Sound Waves http://hep.physics.indiana.edu/~rickv/Standing_Sound_Waves.html Uses diagrams to show pressure nodes and internodes of harmonics in a pipe. The Doppler Effect and Sonic Booms http://www.gmi.edu/~drussell/Demos/doppler/doppler.html Explore in detail the wave front diagrams of stationary and moving sources at both subsonic and supersonic velocities. The Physics Classroom http://www.physicsclassroom.com/Class/sound/soundtoc.html The sound section of a more diverse site. Contains lots of information and fully explained diagrams. Check your understanding with a quiz at the end. The Physics of Sound http://www.physics.usu.edu/classes/4020/soundnotes/sound.htm Uses graphs to explain production and perception of sound. The vOICe Sonification Applet - Draw your own Sound http://www.seeingwithsound.com/javoice.htm Explore synthetic sound and vision with this voice mapping java applet. Sonify the premade images, or make your own.

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