Decibels 1
How many decibels is breathing?
10 dB
How many decibels is street traffic?
70 dB
How many decibels is a jet airplane?
140 dB
What is sound?
Energy from vibrations that you hear
All sound is created by _______.
Vibrations
How many decibels is whispering?
20 dB
How many decibels is city traffic?
90 dB
How many decibels is a rocket?
180 dB
What is vibrate/vibrations?
Rapid movement back and forth
Sound travels in __1__ from one ___2___ to another
2. molecules
How many decibels is rustling paper?
30 dB
How many decibels is thunder?
110 dB
How many decibels is an atomic bomb?
210 dB!!!!!!!!!!!!!!!!!!!!!
What is volume?
How much ENERGY is used to make a sound; determines loudness
When an object vibrates, it creates sound waves that __1_____ through our ears to our ____2____
1. travel
2. brain
How many decibels is a quiet conversation?
40 dB
Quick question, how many decibels can injure your ears?
120 dB
What was the loudest thing that created the most decibels?
Krakatoa Volcano
What is pitch?
Highness or lowness of sound
Dogs can hear at a _____ frequency than humans.
A. Lower
B. Higher
C. Equal
B. Higher
How many decibels is a normal conversation?
60 dB
How many decibels is loud rock music?
120 dB!!!!!!
How many decibels was the Krakatoa Volcano?
180 dB Crazy, right? Don't believe me? Look it up.
EXTRA!!!!!! Name a time when you had loud music or etc.
*players response
Sound can't travel in....
A. Space
B. Vacuum
C. All of the above
C. All of the above
The vacuum in space (I think)