Vibrations & Waves & Sound a periodic motion of the particles of an elastic body or medium in alternately opposite directions from the position of equilibrium.
SOUND # Vibrations & Waves & Sound When things vibrate, they move the air and create sound waves Music, talking, sirens, etc.
Review of Sound Waves Waves move and carry energy Waves travel in a medium Waves are created when a source of energy causes a medium to vibrate Waves spread.
Chapter 11 Vibrations & Waves. General definitions of vibrations and waves n Vibration: in a general sense, anything that switches back and forth, to.
Chapter 19 Sound Waves Molecules obey SHM s(x,t)=s m cos(kx- t) leads to variations in density and pressure in the air pressure is large where density.
CAN YOU HEAR ME NOW? Hearing. What to Expect/Objectives Describe what hearing is Describe the pressure waves that experiences as sound Describe.
Waves n Bellringer: What is A wave? (define, use Ch.22 in your book to help you) n What is an example of a wave?