Sound Waves
Sound is made when things __________.
What is Vibrate?
When sound travels down the ear canal it causes this to vibrate first.
What is the EAR DRUM?
Device worn when sound is too loud.
What are ear protection - silencing headphones or ear plugs?
Sound is _________________.
What is everywhere?
The highness or lowness of sound is called its _______.
What is PITCH?
The part of the ear that funnels the sound.
What is the PINNA or OUTER EAR?
What is 85 dB?
Sound travels through ____________.
What is air?
Mr. O made a guitar with a ruler, two elastic bands and a box. He wants to make the sound louder. He should a. use one elastic b. use a larger box c. pluck the elastics harder d. pluck the elastics more gently.
What is C. Pluck the elastics harder
If a sound wave is TALL and CLOSE TOGETHER it is...
What is LOUD and HIGH PITCH?
The three parts of the ear.
What are the outer ear, middle ear and inner ear?
One material that sound proofs your house.
What is insulation?
Name 3 sounds that can damage our hearing.
What is -Plane taking off -Concerts -Construction machines...........
If a sound wave is SHORT and VERY SPREAD APART it is...
What is QUIET and LOW PITCH?
The nerve that carries a message about the sound to the brain.
What is the auditory nerve?
What is natural and man-made?
True. A solid is a good conductor of sound.
The height of a sound wave.
What is amplitude?
The spiral shaped part of your ear called?
What is the cochlea?
Two ways I can reduce noise pollution.
What is Whisper, turn down the TV...?
A pair of elastic fibered bands that vibrate to produce sounds in the human body is called the ________________.
What are VOCAL CHORDS?