Sound Waves

travels through solids fastest because the molecules are closer together

• speed of sound
• wavelength
• frequency
• amplitude

How high or low a sound is; depends on the frequency (greater frequency= higher pitch)

• pitch
• frequency
• sound
• medium

Tags

NGSS.HS-PS4-1

When the sound source moves, the frequency changes
ex. police car siren sounding lower pitch after the car passes

• pitch
• frequency
• Doppler Effect
• medium

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

A reflected sound wave

• frequency
• pitch
• echo
• rarefaction

Tags

NGSS.MS-PS4-2

High Amplitude =__________________

• Louder sounds
• Quieter Sounds

Tags

NGSS.MS-PS4-1

Low Amplitude = ______________

• Quieter Sounds
• Louder sounds

Tags

NGSS.MS-PS4-1

Low frequency = _______ Pitch

• Low
• High

Tags

NGSS.HS-PS4-1

High frequency = _______ Pitch

• High
• Low

Tags

NGSS.HS-PS4-1

After the train passed, the pitch of the train whistle became lower. This change in sound would be represented by what change in the diagram above? 

• The distance represented by C would increase. 
• The distance represented by C would decrease. 
• The distance represented by D would increase. 
• The distance represented by D would decrease. 

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5