Hearing and Sound

• ear canal

• eardrum

• pinna

• hammer

What is this?

• eardrum

• ear canal

• pinna

• hammer

What is this?

• eardrum

• ear canal

• hammer

• anvil

What is this?

• eardrum

• cochlea

• hammer

• auditory nerve

• pinna

• stirrup

• eardrum

• cochlea

What is this?

• anvil

• cochlea

• ear canal

• auditory nerve

Sound occurs when particles in the air

• vibrate

• heat up

• slow down

• change shape

The unit for measuring sound is

• metres (m)

• decibels (db)

• litres (L)

• grams (g)

Which state of matter is the best conductor of sound (hear sounds the loudest)?

• solid

• liquid

• gas

• they are all the same

Tags

NGSS.MS-PS4-2

How can a person prevent hearing damage?

• Avoid sticking objects into your ears.

• Don't listen to loud music for long periods of time.

• Wear ear protection when on a construction site.

• All of the above