4
1-28. What are the three basic characteristics
of sound?
1. Amplitude, intensity, and quality
2. Amplitude, pitch, and tone
3. Pitch, intensity, and quality
4. Pitch, frequency, and quality
1-29. If several musical instruments are
playing the same note, you should be
able to distinguish one instrument from
another because of which of the
following characteristics of sound?
1. Quality
2. Overtones
3. Frequency
4. Intensity
1-30. Through which of the following
mediums will sound travel fastest, at the
indicated temperature?
1. Air at 68º F
2. Lead at 20º C
3. Steel at 32º F
4. Steel at 20º C
1-31. In sound terminology, which of the
following terms is the same as a wave
reflection?
1. Echo
2. Image
3. Acoustics
4. Refraction
1-32. Multiple reflections of sound waves are
referred to as
1. noise
2. acoustics
3. interference
4. reverberation
1-33. Two out-of-phase waves of the same
frequency that are moving through the
same medium are said to present which
of the following types of interference?
1. Additive
2. Constructive
3. Both 1 and 2 above
4. Subtractive
1-34. A cavity that vibrates at its own natural
frequency and produces a sound that is
louder than at other frequencies is
demonstrating which of the following
sound characteristics?
1. Noise
2. Quality
3. Resonance
4. Reverberation
1-35. Energy in the form of light can be
produced through which of the following
means?
1. Chemical
2. Electrical
3. Mechanical
4. Each of the above
1-36. The scientist, J. C. Maxwell, developed
the theory that small packets of
electromagnetic energy called photons
produce
1. sound
2. noise
3. echoes
4. light
1-37. A large volume of light radiating in a
given direction is referred to as a
1. ray
2. beam
3. shaft
4. pencil
