There are two types of sound waves: transverse and longitudinal. Each wave has its own shape and specific materials that they can conduct through.
Transverse waves are best visually represented by a wave on a string. These types of waves have the up and down motion that you would see if you took one end of the string and lifted it up then down. This ripple motion cannot move through gas or liquid because there is no way to drive the motion forward. Longitudinal waves are more like a spring or a slinky in shape. Any sound wave that goes through the air is a longitudinal wave.Learn More
A Bohr diagram shows the distribution of an atom's electrons among different energy levels, or electron shells. Each diagram also features the number of protons and neutrons in the atom's nucleus.Full Answer >
Scientists typically refer to a substance changing its physical form as a changing state of matter. These changes to the state of matter are from changes in temperature and air pressure, which affect the density of solids, liquids and gases by either pushing the particles closer together, producing a denser state or pulling them further apart.Full Answer >
Particle theory, also referred to as the kinetic theory of matter, is a theory in science that describes all forms of matter as being composed of tiny particles that are always in a constant state of motion. The theory also states that the degree to which these particles move around depends on the amount of energy that is present in the matter and what the nature of the relationship is between the various particles.Full Answer >
The smallest unit of matter is the atom. In the fifth century B.C., Democritus proposed that matter can only be cut up to a certain point. At that point, that smallest particle still retains the properties of that substance.Full Answer >