perception of sound

What is the human perception of sound intensity called?

• Intensity

• Loudness

• Frequency

• Pitch

What is the term for the number of compressions or rarefactions of a sound wave that pass per second?

• Intensity

• Loudness

• Frequency

• Pitch

What is the threshold of pain in decibels?

• 100 dB

• 120 dB

• 140 dB

• 160 dB

What is the term for waves with frequencies over 20,000 Hz?

• Infrasonic

• Ultrasonic

• Subsonic

• Supersonic

What is the Doppler effect?

• Change in loudness due to a moving source

• Change in pitch or wave frequency due to a moving wave source

• Change in intensity due to a stationary source

• Change in frequency due to a stationary observer

What is the study of sound that can prevent excessive reverberation and create good listening environments?

• Sonar

• Echolocation

• Acoustics

• Ultrasound

What is the process of locating objects by sending out sounds and interpreting the waves reflected back?

• Sonar

• Echolocation

• Ultrasound

• Acoustics

What does "sonar" stand for?

• Sound Navigation and Ranging

• Sound Navigation and Reflection

• Sound Navigation and Resonance

• Sound Navigation and Reverberation

What medical problems can ultrasound waves help treat?

• Heart disease

• Kidney stones or gallstones

• Diabetes

• Asthma