Sound, Ear, Music

What unit do we use to measure sound?

• decibels

• inches

• pounds

• centimeters

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sound is caused by ______________.

• vibrations

• light

• the sun

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The hearing organ, the Cochlea is located in the...

• Inner Ear

• Middle Ear

• Outer Ear

This area is filled with three bones, and mostly air. This is also where sound is amplified. Where does this occur?

• Outer Ear

• Middle Ear

• Inner Ear

What is the function of the ridges on your outer ear?

• They prevent germs from entering your middle ear.

• They direct sound into your middle ear.

• They prevent loud noises from damaging your inner ear.

• They filter out very high and low-frequency sounds.

Place the following events in sequence: Your eardrum begins vibrating; Electrical impulses travel along nerve fibers; The hammer, anvil, and stirrup begin moving

• B, C, A

• A, B, C

• B, A, C

• A, C, B

When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the_________.

• outer ear and ear canal

• inner ear

• tiny hairs

• three small bones in the middle ear

Tags

NGSS.MS-PS4-2

How does increasing the amplitude of a sound wave affect the sound?

• it makes the sound louder

• it makes the sound travel faster

• it increases the wavelength of the sound

• it increases the frequency of the sound

Tags

NGSS.MS-PS4-1

What happens in the inner ear? 

• Sound waves are captured.

• Sound waves move deeper into the ear. 

• Sound waves are reflected.

• Sound waves are converted into nerve impulses.

What part of the ear vibrates first when a sound is made?

• eardrum

• earcanal

• oscicles

• cochlea