Sound Waves
Sound is a form of ____________
Energy
Name the 3 parts of the human ear
Outer, Middle, Inner
These are sounds that do not hurt your ears
Pleasant sounds
True or False. Sound travelled through the string to make a telephone?
True
Sound travels as a ___________
Wave
This is the part of the ear that collects the sound
Pinna
How do we measure sound
Decibels (dB)
You can adjust the pitch of the elastic by doing this.
Tightening or loosening the elastic.
Sound is caused by __________
Vibrations
The 3 tiny bones in the middle ear are called
Hammer, Anvil, Stirrup
If you cannot hear sound you are __________
Deaf
The longer the tube the higher or lower the pitch?
Lower
Frequency is the number of _____________ per second
Vibrations
True or False. Mr Albert wears hearing aids.
True
Volume is how ___________ or _____________ a sound is
Loud or Soft
I can protect my ears from dangerous sounds by doing this.
Wear ear protection.
The larger the wave the louder or softer the sound
Louder
If these nerves are damaged you will be unable to hear
Auditory nerves
This is a piece of skin inside your ear that is stretched tight like the skin of a drum
Eardrum
The experiment that was the most fun was?
They were all FUN!