Sound and Hearing

What is a pitch?

• highness or lowness of a sound
• the intensity of a vibration
• the amplitude of the sound wave
• volume of sound

If you want to change the pitch of a sound, you have to change the ___

• frequency
• amplitude
• speed
• volume

What happens when you increase the amplitude of a 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

This is the unit used to measure the volume of a sound. 

• Decibel
• Medium
• Vibration
• Oscilloscope

True or False: Sound can travel through a vacuum (space).

• True
• False

Sound waves move more quickly through _________________ matter

• solid
• liquid
• gaseous
• vacuuum

Tags

NGSS.MS-PS4-2

According to the Doppler Effect, a police officer driving a car with the siren on would hear...

• High pitch
• low pitch
• No change in pitch
• no pitch

The number of waves that pass a given point in one second....

• pitch
• frequency
• wavelength
• amplitude

Waves that have a short wavelength also have this...

• loud sound
• soft sound
• high frequency
• low frequency

The distance between the line of origin to the top of the wave is called

• amplitude
• wavelength
• frequency
• speed

Tags

NGSS.MS-PS4-1