Waves
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PRESENTATION OUTLINE
WAVES
A PERIOIDIC DISTURBANCE AS ENERGY IS TRANSMITTED THROUGH A MEDIUM
MECHANICAL WAVES
A WAVE THAT REQUIRES A MEDIUM THROUGH WHICH TO TRAVEL
ELECTROMAGNETIC WAVE
A WAVE CONSISTS OF OSCILLATING ELECTRIC/MAGNETIC FIELDS
MECHANICAL WAVE EXAMPLE
ALL WAVES BUT LIGHT WAVES
ELECTROMAGNETIC EXAMPLE
VISIBLE LIGHT WAVES, AS WELL AS RADIO WAVES
REFLECTION
- the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through
RAREFRACTION
- the bending of a wavefront as the wavefront passes between two substances in which the speed differs.
DIFFRACTION
- a change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening
CALCULATION OF VELOCITY
CONSTRUCTIVE
- any interference in which waves combine so that the resulting wave is bigger than the original waves
DESTRUCTIVE
- any interference in which waves combine so that the resulting wave is smaller than the largest of the original waves
INTERESTING THING
SOME WAVES CAN PASS THROUGH THINGS WITHOUT MATTER
