Sound and Acoustics Quiz

What is the aural sensation caused by oscillation or vibration?

• Wave

• Sound

• Frequency

• Echo

What is used to transform mechanical energy into sound energy and vice versa?

• Amplifier

• Resonator

• Condenser

• Acoustic Transducer

What type of transducer is based on scientific, non-electric principles?

• Optical

• Electroacoustic

• Thermal

• Piezoelectric and Magnetostrictive Transducers

What type of transducer converts electrical energy into mechanical energy (sound)?

• Electroacoustic Transducer

• Phototransducer

• Thermoelectric

• Piezoelectric

How are sound waves transmitted?

• Compressional Disturbances

• Fluid flow

• Light dispersion

• Radiant heating

What describes sound below 20 Hz?

• Infrasonic

• Audible

• Subsonic

• Hypersonic

What describes sound above 20,000 Hz?

• Audible

• Infrasonic

• Ultrasonic

• Supersonic

What is the typical frequency range of the human speaking voice?

• 200 to 700 Hz

• 50 to 900 Hz

• 100 to 600 Hz

• 700 to 1,000 Hz

What causes adjacent air pressure to change but does not cause movement?

• Reflection

• Conduction

• Pressure Fluctuations

• Refraction

What technique is used to make undesirable sound less audible?

• Sound Masking

• Noise Isolation

• Soundproofing

• Reverberation