Physics- Mechanical Wave

Wave

a periodic disturbance . These are produced in all forms of matter even in empty space where ordinary matter does not exist

Wave motion

some sort of periodic displacement of an elastic medium from its normal position

Transverse Wave

is a wave in which the vibration direction is perpendicular to the direction of the wave propagation

Longitudinal or Compressional Wave

a wave in which vibration direction is parallel to the direction of propagation

Period of Vibration

is the time taken for a particle to move through in one complete cycle

Frequency of Vibration

the number of such vibrations executed by the particle each second

Crest

the top points on the wave

Trough

is the bottom points on the wave

Amplitude

the maximum displacement from their normal position of the particles that oscillate back and forth

Wavelength

is the distance between two successive points in a wave

Standing wave

a stationary wave pattern formed in a medium when two sets of identical wave pass through the medium in opposite directions

Reflection

the property of wave which occurs when a wave strike an object or carries to a boundary or another medium ad is at least diverted back into the original medium

Refraction

the wave property which occurs when a wave crrosses a boundary into another medium and its speed changes because new material has a different characteristics.

Diffraction

the property of wave to bend around the edge of an object but is unrelated tp refraction

Dispersion

the property of wave whereby waves of different frequency spread apart from one another

Interference

the wave phenomena that occur when two or more waves overlap in the sae region of space