Sound and Loudness Quiz

What unit is used to measure loudness?

• Volt

• Watt

• Decibel

• Hertz

At what decibel level is the loudness of a pin dropping to the floor?

• 30 dB

• 80 dB

• 100 dB

• 0 dB

What decibel level is the loudness when someone pounds on a door?

• 80 dB

• 30 dB

• 0 dB

• 100 dB

What can cause damage to people's ears if the sound level exceeds 100 dB?

• Rainfall

• Bird chirping

• Chainsaw noise

• Whispering

What do music technicians use to change the loudness levels of different frequencies of sound?

• Equalizers

• Speakers

• Amplifiers

• Microphones