Decibels

What is the short of decibels?

• dBs

• dC

• dcB

• dB

How many decibels will it be when human talks?

• 80-90 decibels

• 10-30 decibels

• 50-70 decibels

• 20-40 decibels

How many decibel will it be when we hear a gunshot?

• 130 dB

• 50 dB

• 90 dB

• 100 dB

Shana wants to go to Bandung using train. In the train station, she hears a very noisy sound caused by the train, people talking, suitcase, and so on. How many decibels will it be in the train station?

• 100-110 dB

• 50-60 dB

• 130-140 dB

• 40-50 dB

Which sound that will have the highest decibels level below?

• Whispering

• People talking

• Factory sound

• Moderate snoring

When a jet plane take off, it will have sound .... dB

• 70

• 120

• 90

• 100

Choose one place below that could be the most noisy one and it has the highest decibels level.

• Conversation in a room

• Busy street

• Noisy Restaurant

• Library

What is the unit of measurement for sound intensity?

• Decibels

• Hertz

• Watts

• Lumens

Which of the following sounds is likely to measure around 30 decibels?

• A whisper

• A rock concert

• A jet engine

• A busy street

What is the typical decibel level of normal conversation?

• 20-30 dB

• 40-50 dB

• 60-70 dB

• 80-90 dB