Hearing and Sound Jeopardy

Changing Pitch and Loudness

100

If you have a skinny elastic and a fat elastic, which one will make the higher pitch and which one will make the lower pitch?

Skinny elastic=high pitch Fast elastic = low pitch

200

Conrad 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.

c. pluck the elastics harder

300

David learned that sound is a result of vibrations and the faster the vibration a. the lower the pitch b. the higher the pitch c. the softer the sound d. the louder the sound

b. the higher the pitch

400

If you take a ruler and hang 20 cm off of the edge of the desk and bang it, would it cause a high pitch or a low pitch?

Low pitch

500

If you take a ruler and hang 5 cm off of the edge of the desk and bang it, would it cause a high pitch or a low pitch?

High pitch

Parts of the Ear

100

How many parts of the ear are there?

There are three parts of the ear

200

Where is the eardrum? What is the point of the eardrum?

The point of the eardrum is to make it vibrate. The vibrations pass through three bones of the middle ear.

300

What makes up the inner ear?

hammer, stirrup and anvil

400

Damage to what part of the ear causes hearing loss?

Cochlea (Tiny hairs inside)

500

Sound travels through the pinna (outer ear) into the ear canal which directs sound to the eardrum. When sound reaches the eardrum it vibrates, which makes the ossicles hammer anvil and stirrup (ossicles) move. This motion sends fluid into the inner ear, causing tiny hairs in the cochlea to move and then triggers the auditory nerve.

How our ear works

Sound Proofing and Amplifying Sound

100

How could you increase the amplitude of a the song you are listening to on the radio?

By turning the song up

200

Imagine looking at the sound waves of a very loud sound such as fireworks. Will the sound waves have a high or low amplitude?

High amplitude 

(the louder the sound the higher the amplitude)

300

How does a megaphone work?

Acts as a funnel for sound. This allows less sound to scatter in other directions. It helps to increase the volume! 

400

How can you make a sound louder?

You could make a sound louder by changing the amplitude. Increasing the amplitude will produce louder sounds.

500

If you had to block a sound, what material would you use? a. soil b. sawdust c. styrofoam d. concrete

c. styrofoam

Properties of Sound

100

How is sound made?

Sound is caused by the vibration of an object.

200

Amy learned that vibration is another word for wave. Which of these produces waves, but NOT the sort of wave we can hear? a. sun b. rain c. wind d. thunder

a. sun

300

How do we measure sound?

We use a sound meter and the sound meter measures the sound in decibels.

400

What happens to the loudness of the sound, as we move away from the sound source?

The loudness decreases

500

What happens to the volume of the sound, as we move closer to the sound source?

The volume increases

Odds and Ends

100

What are some sounds that can damage our hearing?

-Plane taking off -Concerts -Construction machines

200

What are some ways you can prevent damage to your ears?

Use ear plugs aorund loud noises (lawn mowers, power tools, concerts). 

Turn the volume down 

Give your ears time to rest 

Don't stick anything in your ears 

Keep your ears dry

300

A technique used by various animals such as bats and dolphins to "see" and determine the location of objects around them by using reflected sound waves.

echolocation

400

Are there other ways to communicate besides using sound?

Sign language

500

Give some examples of how animals hear differently that people?

Snakes hear with their skin, Bat's hear with echolocation,