sound

Sound is a sensation of

• vision

• hearing

• vibration

• none of these

Sound is produced when the body

when humans speak ______vibrates

• tongue

• vocal chord

• ears

• mouth

sound can travel through a vacuum. TRUE/FALSE.

• true

• false

• .

• .

sound can travel in

• solid

• liquid

• gas

• all of the above

The number of vibrations produced by the source of sound wave in one second is known as

• one vibration

• wavelength

• time period

• frequency

Sound can travel the fastest in

• liquid

• solid

• gas

• all of the above

what is pitch ??

• highness or lowness of a sound

• the intensity of a vibration

• the amplitude of the sound wave

• volume of sound

how does the bee produes sound ?

• vocal chord

• body

• wings

• mouth

 

What do we call sounds that are greater than humans can hear? E.g. sounds above 20,000Hz

I

Ultrasonic sounds

• Infrasonic sounds

• Ultrasonic sounds

• .

• .