1. The equal loudness curve goes from the lowest audible sound to the level of the threshold of pain.
a. True
b. False
2. Music at a rock concert will cause temporary hearing loss, but no permanent damage occurs.
a. True
b. False
3. What are the primary parts of a typical loudspeaker?
a. Circuit board, voice band, conductive web, cone, basket ring
b. Magnet, voice band, conductive web, cone, pad ring, chassis
c. Magnet, voice coil, spider, cone, pad ring, basket
d. Sensor, voice coil, spider, cone, pad ring, heatsink
4. What kinds of frequencies are too high to be heard by humans?
a. Microsonic
b. Subsonic
c. Ultrasonic
d. Megasonic
5. A “driver” is a device that reproduces sound. What are some examples of drivers?
a. Sonics, subsonic, woofers
b. Woofers, subwoofers, tweeters
c. Sensors, amplifiers, broadcasters
c. Tweeters, magnetic field, megaphone
6. In order for a sound to occur, the air at rest must vibrate between an at rest state, to a pressure or vacuum state and then back to a at rest state, over and over.
a. True
b. False
7. “Ringing in the ears” is a warning sign that the sound you are listening to is too loud.
a. True
b. False
8. Sound waves cause local variations in air pressure.
a. True
b. False
9. What are speaker cones made from?
a. Hardened epoxy, cloth, silk
b. Cloth, paper, ceramic, fiberglass
c. Paper, cloth, polypropylene, aluminum
d. Ceramic, steel, aluminum, kynar
10. The basket of a speaker serves what function?
a. It keeps the shape of the speaker and is a heat sink
b. It acts as a conductor for the electricity
c. It allows the sound to resonate
d. It creates an opposing magnetic force for the speaker

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