The Nature of Sound. Objectives What is sound? What physical properties of a medium affect the speed at which sound travels through it?
Sound Waves What causes sound? vibrations in the air from voices or objects create sound If a tree falls in the forest and no one is around to hear it.
Sound Waves
WAVES: SOUND. Sound is a longitudinal wave In air, sound waves cause air particles to move back and forth In areas where the particles are pushed together,
