Lucky for us, the average salaries of UK jobs are revealed annually by those helpful number-crunching pixies at the Office of National Statistics. The survey of a whopping 21,563,000 people's earnings will either delight or depress you depending on what end of the scale you see yourself in the next five years.
This is what is called transverse and longitudinal waves. The difference between transverse and longitudinal waves is the direction in which the waves shake. If the wave shakes perpendicular to the movement direction, it's a transverse wave, if it shakes in the movement direction, then it's a longitudinal wave. [Transverse Wave] It is easy to imagine a transverse wave. The waves of the ocean and the waves transmitted from a tightened rope when shaken are transverse waves.
A transverse wave is when the wave is vibrating perpendicular to the direction the wave is traveling. A longitudinal wave, also called a compression wave, is a wave in which the vibration is in the same direction as that in which the wave is traveling. How frequently a wave or vibration occurs during a span of time, determines the waves frequency. Frequency is the number of waves per unit time. The unit for frequency if a Hertz ( 1/second). The speed a wave travels is the wavelength multiplied by this frequency. The amplitude of a wave is the maximum distance the wave is displaced. Waves are characterized by several distinct behaviors. One behavior is interference. Wave will combine with each other, causing an interference.