The noise that the plane makes is sometimes so loud that you cannot hear any other noise. Sound is a type of energy. Sounds are produced when an object vibrates. When this happens, the air around the object also vibrates. These vibrations in the air travel as sound waves. A jet engine makes a great deal of sound energy. The engine sounds loud when it is close, but you can sometimes hear the noise when the plane is even several miles away from you.
Definition of Polymer. A large molecule consisting of chains or rings of linked monomer units, usually characterized by high melting and boiling points.
Polymer means many monomers. Sometimes polymers are also known as macromolecules or large-sized molecules. Usually, polymers are organic (but not necessarily). A monomer is a molecule that is able to bond in long chains. Here is a monomer: Here is a polymer: A polymer can be made up of thousands of monomer.This linking up of monomers is called polymerization. It is the long chains that give polymers their unique properties.sually, polymers are organic (but not necessarily). A monomer is a molecule that is able to bond in long chains. Here is a monomer: Here is a polymer: A polymer can be made up of thousands of monomer. This linking up of monomers is called polymerization.