Quiz Answer Key and Fun Facts
1. When you listen to music, you are actually listening to a series of sounds created by the musician. Sound can be heard by humans when it occurs within a certain frequency range. What is the unit of measurement used to express the frequency range of sound?
2. Sound has to vibrate through the air or some sort of solid material in order for it to be heard. What is the name of the material that sound passes through to reach your ear drums?
3. People often describe their stereo as being loud or that a jet engine is loud. There has to be a way to measure how loud something is so you'll know what is a safe level to be exposed to. What is the unit of measurement that tells you how loud something is?
4. Once a sound is produced, your ear has the ability to pick up the vibrations of the sound waves in the air and convert them into sounds your brain can interpret and recognize. One part of your ear takes these sound waves and converts them into nerve signals that your brain can understand. What is this part of your ear called?
5. Many people have heard the term Doppler effect. Which of these scenarios would best describe the phenomenon of the Doppler effect?
6. Not all sound can be heard by the human ear. Sometimes these inaudible sound waves can be useful for reasons other than just hearing. Medical and industrial technicians use certain ranges of sound frequencies in diagnosing conditions of the human body or the condition of a welded steel plate. What range of frequencies would these be described as?
7. Musical chords are made when different notes are played together so that their intervals are harmonics of one another. The result is typically pleasing to the ear. When the chords produce different notes that are not in harmony, the sound can be shrill or unpleasant. What is this term?
8. If an oboe, a clarinet and a bassoon all played the same note at the same pitch and frequency, the discerned listener could distinguish between the three instruments. Which of the following terms describes the reason this distinction can be made?
9. By playing sounds of varying frequencies in relation to one another, the musician can achieve a melody. What is the term for the relationship between these notes which vary in sound and frequency?
10. Which term relates to the difference in the increasing and decreasing of a sound's intensity?
Source: Author ralzzz
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