The funnel shaped part of the ear that gathers sound?
What is the Pinna (outer ear)
100
A long string would have which type of pitch?
What is a low pitch
100
Sound travels best in which state (solid, liquid, or gas)?
What is solid
100
Why are using Q-tips dangerous.
What is they can rupture our eardrum
100
Sound volume is measured in....
What is decibels
200
What are the three tiny bones that are located in the middle ear?
What is the hammer, anvil, and stirrup
200
How do we measure Pitch?
What is Hertz or vibrations per second (the speed of vibrations)
200
Does sound travel faster in a liquid or a gas?
What is a liquid because the particles are closer together
200
Why is it important to wear ear protection when exposed to loud noise.
What is exposure to constant loud noises can cause permanent ear damage.
200
Loud sound waves look like what, draw a picture?
What is large sound waves
300
The vibrations travel down this part of the ear until they reach the ear drum
What is the ear canal
300
A thin and very tight sting, would have a....
What is high pitch
300
Can sound waves only travel in one direction?
No, they travel in all directions
300
Give 2 examples of how you could muffle a loud noise?
What is (answers will vary)
300
Quite or soft sound waves look like what, draw a picture.
What is small waves
400
This snail shaped part of the inner ear contains a liquid and hair like nerve sensors, that carry messages to the brain.
What is the Cochlea
400
The three factors that determine pitch in a stringed instrument are...
What is thickness, tightness, and length
400
Why can sound travel faster through a solid than any other state?
What is because the particles in a solid are located close together so the sound wave can travel through it quickly like dominoes collapsing.
400
What range of volume is safe for our ears?
What is 90 dB less. Exposure to sounds louder than this for a continuous period will eventually cause hearing loss.
400
How does a megaphone amplify sound?
The cone like structure of a megaphone takes the small sound waves created by your voice and makes them larger as the travel down the cone like structure
500
What part of the ear turns the sound wave into tiny vibrations?
What is the eardrum
500
Which animal can hear the highest frequency
What is a dolphin
500
How is sound created
What is through vibrations
500
What is the human range for pitch?
What is 20 - 20000 Hz
500
List 3 everyday objects that use a cone like device to amplify sound?