Tag Archives: Sound

Unit 4 – Sound: Making music quiz

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Unit 4 – Sound intensity & decibels quiz

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Amazing Resonance Experiment

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60% quieter?

Last week, the Federal and NSW governments announced that work would begin on building a second airport in Sydney. Sydney’s current airport has a night-time curfew due to noise concerns over populated areas, but one of the reasons for building … Continue reading

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Sound recording & playback

Dynamic microphone, Condenser microphone, Carbon microphone, Frequency response curves, Sound recording, Amplifiers, Loudspeakers Download the notes. Download the video.

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Mythbusters – The Brown Note

The brown note is a hypothetical infrasonic frequency that would cause humans to lose control of their bowels due to resonance. Find out if it exists….

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Rollerblade bottle tune guy РMichel Lauzi̬re

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PhET – Sound

Click to Run This simulation lets you see sound waves. Adjust the frequency or volume and you can see and hear how the wave changes. Move the listener around and hear what she hears. http://phet.colorado.edu/

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PhET – Fourier: making waves

Click to Run Learn how to make waves of all different shapes by adding up sines or cosines. Make waves in space and time and measure their wavelengths and periods. See how changing the amplitudes of different harmonics changes the … Continue reading

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Interference of two circular or spherical waves simulation

One of the many great learning objects from Walter Fendt (http://www.walter-fendt.de/ph14e/index.html).

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