Sound

Sound is a ________ wave that can only travel through matter.

Which part of the ear acts as the amplifier?

• Eardrum
• Ear canal
• Earlobe
• Middle Ear

Which part of the ear acts as the sound wave collector?

• Middle Ear

• Inner Ear

• Outer Ear

• Eardrum

Sound waves are vibrations that cause molecules to compress and decompress. The decompression of molecules in a sound wave is called a _____________.

Frequency is defined as the number of __________ that pass through a given point in one second.

Tags

NGSS.HS-PS4-1

The SI unit to measure sound is the ________.

Tags

NGSS.MS-PS4-1

Sound waves travel faster in which materials?

• Gases

• Liquids

• Soilds

Tags

NGSS.MS-PS4-2

Sound waves travel faster through which temperature?

• 87 F

• 21 F

In the _________, sound waves move hair cells that are converted into electrical signals that travel to the brain.

Tags

NGSS.MS-LS1-8

The perception of how high or low a sound is called __________.