lesson 1 U2

Sound is a form of energy produced by ______________.

• Vibrations

• Distances

• Prisms

• Forces

A place where no sound exists is...

• in the air.

• under water.

• space.

• all of the above

What type of wave are sound wave?

• longitudinal

• transverse

• electromagnetic

• sea wave

Tags

NGSS.MS-PS4-2

Sound waves are mechanical waves as the don't need medium to propagate

• false

• true

Sound waves propagate through media

as spheres of crests and troughs

• true

• false

sound wave velocity =

• wave frequency x wavelength

• wave frequency / wavelength

• wave frequency + wavelength

........................... is an external factor (or stimulus) that affects the ear causing the sense of hearing.

• sound

• light

• heat