Answer:
Mechanical waves react to different mediums in different ways. Some mechanical waves are <u>TRANSMITTED</u> through a medium, meaning they pass through the medium.
The way in which waves are transmitted depends upon the type of material. In <u>SOLIDS</u>, mechanical waves travel rapidly, because the molecules are <u>DENSELY</u> packed. In liquids and air, however, mechanical waves travel more <u>SLOWLY</u>, because the molecules are spread farther apart.
Other mechanical waves are reflected off a medium. When a mechanical wave is reflected, it <u>BOUNCES</u> off the medium and then travels in a <u>DIFFERENT</u> direction. <u>SONAR</u> is an application that uses sound wave reflection to determine how deep water is.
A third way mechanical waves react to a medium is <u>ABSORPTION</u>. When a mechanical wave is absorbed, it remains <u>WITHIN</u> a medium and is not transmitted to another medium.