Which statement about a wave produced by a doorbell is true?
A. it does not require a medium to travel
B.it propagates in the form of compression and rarefactions
C. the particles of the wave medium vibrate perpendicular to the direction of the wave
D. it propagates through the crests and troughs

Question

Which statement about a wave produced by a doorbell is true?
A. it does not require a medium to travel
B.it propagates in the form of compression and rarefactions
C. the particles of the wave medium vibrate perpendicular to the direction of the wave
D. it propagates through the crests and troughs

wolfe8 · Answer

What kind of wave is produced by a doorbell?

anonymous · Answer

idk if this will help but particles in a medium move parallel with the wave right?:)

wolfe8 · Answer

Not quite. Perpendicular. Matter doesn't get transferred, only energy. This might help: https://www.youtube.com/watch?v=bQrj0DNXjMY It's a bit weird though. Further help on waves: https://www.youtube.com/watch?v=wXOeuoMR7Qg

wolfe8 · Answer

Johnny, can you tell me what kind of waves doorbells make? i.e sound wave, micro wave, light wave

anonymous · Answer

i think sound wave...

wolfe8 · Answer

Alright, and what are the properties of sound waves? This might help: http://www.preservearticles.com/201012241573/difference-between-sound-waves-light-waves.html

anonymous · Answer

the correct answer is B, thanks !

wolfe8 · Answer

You're welcome. And regarding my post on particles moving perpendicular to the wave, that is for light waves or any transverse wave. Longitudinal waves like sound waves have particles move in parallel to the wave. So you were right, @annafromindiana My bad. Good job :)