PHYSICS HW HELP!!! Please complete booth sides of the worksheet (the images have been attached below).

. Please make sure to properly draw the diagram EXACTLY as it is shown in the image. Please make sure to answer all questions on BOTH sides of the worksheet accurately, honestly, and thoroughly. I really appreciate your help!!!

Name Usman Gujar Date 31307:23 LIGHT & SOUND SOUND AND HEARING Our ears are sensitive to the vibrations of sound. The pinnacle, the outer part of the ear we can see, catches the sound and funnels it into the ear canal. Sound waves striking the eardrum cause it to vibrate, which then causes the tiny middle ear. bones to vibrate, too. . - The hammer, the anvil, and the stirrup are the smallest bones in the body. Their very small size (compared to the eardrum). amplifies the energy of the sound waves before they reach the cochlea. The snail-shaped cochlea converts the mechanical energy of sound vibration into an electric nerve impulse which our brain understands. The nerve carrying these messages is called the auditory nerve. Our ears also help us keep our balance. The semicircular canals contain fluid. When we move, the : fluid moves too, and this lets us know our position. The Eustachian (you-sta-tion) tube connects the middle ear with the back of the mouth. When your ear pops, that's the Eustachian tube working to keep the air pressure on both sides of the eardrum equal. Use reference sources to label the parts of the ear. 1. Avuitun canal. THE HUMAN EAR ". ... m 7; cochlea. 9. 11. 12. 10. 27 Copyright @ 2000 - Milliken Publishing.Co. All rights re 126 Light & Sound .': ..Name Date LIGHT & SOUND CHARACTERISTICS OF SOUND Frequency and amplitude are the scientific words used to describe pitch or tone and loudness; Remember: the greater the frequency, the higher the pitch of the sound; and the greater the amplitude, the louder the sound. 1. Arrange the sound waves from loudest to softest: 2: Arrange the sound waves from highest to lowest: . : . B low amplitude high amplitude. (sound more intense) low pitch . : low pitch (rapid frequency) DECIBELS-MEASURE OF SOUND INTENSITY heartbeat whisper conversation vacuum cleaner barking dog street traffic . ". air hammer . . thunder clap *: .. .. . painful sounds jet engines T: 20. 40 80 100 120 140 Compare the sounds below with those on the chart. Estimate what the sound intensity might be for each.. a cat meowing .Niagara Falls a computer keyboard a video game singing _: a pin dropping 25 6 .Light & Sound