The less-dense region of a longitudinal wave is called a _______.Multiple choice question.troughcrestcompressionrarefaction

Longitudinal wave compressions areMultiple choice question.its least dense regions.its lowest points.its most dense regions.its highest points.

In a longitudinal wave, the places where particles of matter are closer together are called ________.Group of answer choicesrarefactionscompressionstroughscrests

A longitudinal wave is a type of mechanical wave. Group of answer choicesTrueFal

Which is an example of a longitudinal wave?Group of answer choicesgamma rayScratchocean waveScratchX-rayScratchsound wave

In a longitudinal wave, the particles of the medium vibrate in a direction that is _________ to the direction that the wave travels. Group of answer choicesparallelperpendicularclose to