Difference Between Mechanical And Mechanical Waves
When a source of energy causes a medium to vibrate, a mechanical wave is formed. Mechanical waves require a medium to travel. There are two different types of mechanical waves: longitudinal and transverse waves. The major difference between them is that the transverse waves the displacement of the medium to the direction of propagation of the wave is perpendicular and in the longitudinal is parallel.
The wave travels in the same direction …show more content…
When a transverse wave is a high point is called a crest, and when it's on a low point is called trough. An example of a transverse wave could be a ripple on a pond. Concentric circular ripples which move outward from the point of impact will produce when a pebble is thrown into a pond. A tossed pebble provides the energy to generate a traveling wave. http://hyperphysics.phy-astr.gsu.edu/hbase/Sound/tralon.html Electromagnetic waves “A transverse wave that involves the transfer of electric and magnetic energy (Don Buckley, 2011)” they are made of vibrating magnetic and electric fields that move through a medium or space at the speed of light.
B. SOUND “Sound is a disturbance that travels through a medium as a longitudinal wave ( Don Buckley, 2011 )”. Normally when energy is transferred from one place to another a disturbance is involved. Sound waves can transport the energy through a medium air, water, and solid materials. Temperature, stiffness, and density can affect the speed of …show more content…
A 0dB is the loudness of sound you can barely hear; a tenfold increase in the density of sound would be 10dB. Sounds louder than 100dB can severely affect the ears, and can get worse if they are heard for a long period of time
C. SOUNDPROOF MATERIAL Soundproof is when the ability of sound to travel from one point to another is reduced. Soundproof materials have defined properties that allow them to isolate sound. Air pathways allow sound to travel from outside to the inside so blocking them can reduce sound. The absorbing of sound energy coming through the walls can be a solution. Decoupling the inside of the room from the outside world will be another way to keep sound from getting out. To keep sound from getting into an ordinary room the best way is to combine noise reduction and noise absorption.
This can be made of many materials. For example, foamed plastics, clear plastics or may be made from recycled paper. Egg carton is considered soundproof material because of echo reduction. Echo reduction helps improve the quality of sound by scattering the reflecting sound waves and eliminating echoes. Egg carton also has a small sound wave