Sound Waves in Solids, Liquids and Gases

travels through solids fastest because the molecules are closer together

• speed of sound
• wavelength
• frequency
• amplitude

Tags

NGSS.MS-PS4-2

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

Material (matter) through which a wave travels

• medium
• Doppler Effect
• sound
• pitch

Tags

NGSS.MS-PS4-2

A wave in which the vibration is in the same direction as that in which the wave is traveling; sound waves

• longitudinal wave
• ocean wave
• transverse wave
• mechanical wave

The part of a longitudinal wave where the particles of the medium are close together.

• rarefaction
• compression
• crest
• trough

A part in a longitudinal wave where the particles are spread apart

• compression
• rarefaction
• crest
• trough

The number of wavelengths that pass a point each second

• crest
• amplitude
• frequency
• pitch

A reflected sound wave

• frequency
• pitch
• echo
• rarefaction

Tags

NGSS.MS-PS4-2

Cletus wants to make ear protectors for people who work around loud jet engines at Hartsfield Airport in Atlanta. Which of the following materials should he experiment with for the best results?

• a material that produces sound
• a material that absorbs sound
• a material that transmits sound
• a material that amplifies sound

Tags

NGSS.MS-PS4-2

Which surface is the best reflector of sound? 

• bumpy and soft
• smooth and soft
• smooth and hard
• bumpy and hard

Tags

NGSS.MS-PS4-2