WAVES By Hieronimus Fredy Sestywan. Waves Waves is the movement of oscilation Vibration of SHM Water wave.

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Presentation transcript:

WAVES By Hieronimus Fredy Sestywan

Waves Waves is the movement of oscilation Vibration of SHM Water wave

Shape of wave

Properties of waves  Reflection  Refraction  Diffraction  Interference  Polarization

Reflection

Refraction

Diffraction

Interference

Polarization

Types of waves  Based on its direction : longitudinal waves and transverse waves  Based on its medium : mechanical waves and electromagnetic waves  Based on its amplitude : standing waves and travelling waves

Transverse waves In a transverse wave the oscilation are perpendicular to the direction of motion of the wave Example : the wave along a stretched string

Longitudinal waves In a longitudinal wave, the vibrations are parallel to the line of motion of the wave Example : sound wave and slinki wave

Movie

Progressive waves A progressive wave is one in which the wave profile carries energy and momentum away from the source of disturbance Example : longitudinal wave and transverse wave

Velocity of waves Acceleration of waves

ANGLE OF PHASE, PHASE AND PHASE DIFFERENCE ANGLE OF PHASE PHASE PHASE DIFFERENCE

Stationary waves A stationary wave is formed when two waves of the same frequency and amplitude travelling in opposite directions, are superimposed example : stationary waves on vibrating wires ( Melde’s experiment)

Equation of stationary waves on tied end

Superposition of two waves

ANTINODES NODES

Picture of tied end

Stationary waves on free end

SUPERPOSITION OF TWO WAVES

ANTINODES NODES

Picture of free end

VELOCITY OF WAVES BASED ON THE MEDIUM ON STRING ON AIR ON SOLID ON WATER

Movie Standing waves and Progressive waves

General equation of wave

V = f x λ (waves velocity) E = ½ kA 2 = 2π 2 f 2 mA 2 = ½ mω 2 A 2 (energy) I = 2 π 2 ρvf 2 A 2 (waves intensity)

Doppler effect

Formula

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