General wave properties

General wave properties
Types of waves
Mechanical waves :A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum.
Progressive: A progressive is a disturbance which carries energy without carrying matter
Transverse wave: In a transverse wave, the particles are displaced perpendicular to the direction the wave travels.
In a longitudinal wave the particles are displaced parallel to the direction the wave travels.
Describing waves
Wavelength is distance between corresponding points of two consecutive waves. Wavelength is usually denoted by the Greek letter lambda (λ)
Wave frequency is the number of waves that pass a fixed point in a second.The SI unit for wave frequency is the hertz (Hz).
The speed is the distance traveled by a given point on the wave (such as a crest) in a given interval of time. It is measured in m/s
The amplitude of a wave refers to the maximum amount of displacement of a particle on the medium from its rest position.
Phase: Wave phase is the offset of a wave from a given point. The point A and C are in phase.
The period of a wave is the time for a particle on a medium to make one complete vibrational cycle.
Reflection
The return of light or sound waves from a surface is called reflection
The law of reflection states that the angle of incidence is equal to the angle of reflection.
Refraction
Refraction of waves involves a change in the direction of waves as they pass from one medium to another.
Waves travel more slower in shallow water because the there is more pressure in the deep water which makes it easier to travel since there are more particles