Waves are described using the following terms: Rest position – the undisturbed position of particles when they are not vibrating. Displacement – the distance that a certain point in the medium has moved from its rest position.

An example of a medium is a metal spoon sitting in a cup of hot tea that is too hot to touch. An example of a medium is a newspaper from the combined media form of newspapers, television, magazines, radio and the Internet.

The structure of a wave The distance from one peak or trough to the next is called wavelength. It is denoted with the Greek letter lambda (λ). The greater the wavelength, the lower the wave’s peak.

1a : a long shallow often V-shaped receptacle for the drinking water or feed of domestic animals. b : any of various domestic or industrial containers. 2a : a conduit, drain, or channel for water especially : a gutter along the eaves of a building.

The trough level is the lowest concentration in the patient’s bloodstream, therefore, the specimen should be collected just prior to administration of the drug. The peak level is the highest concentration of a drug in the patient’s bloodstream.

#__2_ = trough The lowest point of the wave below the line of origin. #__1_ = line of origin Signifies the original position of the medium.

Reflection-energy waves bouncing off the surface of an object (mirror or echoes return energy back to. the source) Refraction-energy waves that bend (change direction and speed) as they pass from type of object to another type.

Compression- a region in a longitudinal (sound) wave where the particles are closest together. Rarefaction- a region in a longitudinal (sound) wave where the particles are furthest apart.

Medium – The medium is the matter that a wave travels through. Period – The period of a wave is the time between wave crests. It is the inverse of the frequency. Polarization – Polarization is when a wave oscillates in one particular direction. Light waves are sometimes polarized by a special polarizing filter.

So how does light travel? Basically, traveling at incredible speeds (299 792 458 m/s) and at different wavelengths, depending on its energy. It also behaves as both a wave and a particle, able to propagate through mediums (like air and water) as well as space.