sound

what are soundwaves

transferring energy without transferring matter

what arethe types of waves

mechanical

electromagnetic

what is sound production

Vibrations creating compressions in the air

shat does sound require

a meduim ( solid liquid gas )

what is loudness determined by

Determined by amplitudeof sound waves.

what is pitch determined by

frequency of sound waves.

how do we hear thibgs

the ear Converts sound waves into nerve signals interpreted by the brain.

what are echos

reflection of sound waves

what is untrasound

High-frequency sound waves