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Diaphragm (acoustics): Quiz

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Question 1: In a ________, a diaphragm (generally, but not exclusively cone shaped) is the thin, semi-rigid membrane attached to the voice coil, which moves in a magnetic gap, vibrating the diaphragm, and producing sound.
TweeterSubwooferLoudspeaker enclosureLoudspeaker

Question 2: Other materials used for diaphragms include: polypropylene (PP), polycarbonate (PC), ________ (PET), silk, glassfibre, carbon fibre, titanium, aluminium, aluminium-magnesium alloy, and beryllium.
Polyethylene terephthalatePET film (biaxially oriented)GoldPolyester

Question 3: Similarly, the eardrum uses this same principle, using a diaphragm to stimulate nerves to transmit a neural "image" of sound to the ________.
DigestionSensory systemNervous systemBrain







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