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MR V PS U7

WAVES AND ELECTROMAGNETIC RADIATION

TermDefinition
WAVE A DISTURBANCE THAT TRANSFERS ENERGY FROM PLACE TO PLACE.
MECHANICAL WAVE A WAVE THAT REQUIRES A MEDIUM THROUGH WHICH TO TRAVEL.
MEDIUM THE MATERIAL THROUGH WHICH A WAVE TRAVELS THROUGH.
ELECTROMAGNETIC RADIATION THE ENERGY TRANSFERED THROUGH SPACE BY ELECTROMAGNETIC CLOUDS.
TRANSVERSE WAVES A WAVE THAT MOVES THE MEDIUM A RIGHT ANGLES TO THE DIRECTION IN WHICH THE WAVE TRAVELS.
AMPLITUDE THE MAXIMUM DISTANCE THE PARTICLES OF A MEDIUM MOVE AWAY FROM THEIR REST POSITIONS AS A LONGITUDINAL WAVE PASSES THROUGH THE MEDIUM.
LONGITUDINAL WAVE A WAVE THAT MOVES THE MEDIUM IN A DIRECTION PARALLEL TO THE DIRECTION IN WHICH THE WAVES TRAVELS.
WAVELENGTH THE DISTANCE BETWEEN TWO CORRESPONDING PARTS OF A WAVE, SUCH AS THE DISTANCE BETWEEN TWO CRESTS.
FREQUENCY THE NUMBER OF COMPLETE WAVES THAT PASS A GIVEN POINT IN A CERTAIN AMOUNT OF TIME.
REFLECTION THE BOUNCING BACK OF AN OBJECT OR A WAVE WHEN IT HITS A SURFACE THROUGH WHICH IT CANNOT PASS.
REFRACTION THE BENDING OF WAVES AS THEY ENTER A NEW MEDIUM AT AN ANGLE,CAUSED BY A CHANGE IN SPEED.
DIFFRACTION THE BENDING OR SPREADING OF WAVES AS THEY MOVE AROUND A BARRIER OR PASS THROUGH AN OPENING.
ABSORPTION THE TRANSFER OF ENERGY FROM A WAVE TO THE MATERIAL IT ENCOUNTERS.
INTERFERENCE THE INTERACTION BETWEEN WAVES THAT MEET.
STANDING WAVE THE WAVE THAT APPEARS TO STAND IN ONE PLACE, EVEN THOUGH IT IS TWO WAVES INTERFERING AS THEY PASS THROUGH EACH OTHER.
RESONANCE THE INCREASE IN THE AMPLITUDE OF A VIBRATION THAT OCCURS WHEN EXTERNAL VIBRATIONS MATCH AN OBJECT'S NATURAL FREQUENCY.
LOUDNESS THE PERCEPTION OF THE ENERGY OF A SOUND.
INTENSITY THE AMOUNT OF ENERGY PER SECOND CARRIED THROUGH A UNIT AREA BY A WAVE.
DECIBEL A UNIT USED TO COMPARE THE LOUDNESS OF DIFFERENT SOUNDS.
PITCH THE DESCRIPTION OF HOW A SOUND IS PERCEIVED AS HIGH OR LOW.
DOPPLER EFFECT THE CHANGE IN FREQUENCY OF A WAVE AS ITS SOURCE MOVES IN REALATION TO AN OBSERVER.
ELECTROMAGNETIC WAVE A WAVE MADE UP OF A COMBINATION OF A CHANGING ELECTRIC FIELD AND A CHANGING MAGNETIC FIELD.
ELECTROMAGNETIC SPECTRUM THE COMPLETE RANGE OF ELECTROMAGNETIC WAVES PLACED IN ORDER OF INCREASING FREQUENCY.
RADIO WAVES ELECTROMAGNETIC WITH THE LONGEST WAVELENGTHS AND THE LOWEST FREQUENCIES.
MICROWAVES ELECTROMAGNETIC WAVES THAT HAVE SHORTER WAVELENGTHS AND HIGHER FREQUENCIES THAN RADIO WAVES.
VISIBLE LIGHT ELECTROMAGNETIC RADIATION THAT CAN BE SEEN WITH THE UNAIDED EYE.
ULTRAVIOLET RAYS ELECTROMAGNETIC WAVES WITH WAVELENGTHS SHORTER THAN VISIBLE LIGHT BUT LONGER THAN X-RAYS.
INFRARED WAVES ELECTROMAGNETIC WAVES WITH SHORTER WAVELENGTHS AND HIGHER FREQUENCIES THAN MICROWAVES.
X-RAYS ELECTROMAGNETIC WAVES WITH WAVELENGTHS SHORTER THAN ULTRAVIOLET RAYS BUT LONGER THAN GAMMA RAYS.
GAMMA RAYS ELECTROMAGNETIC WAVES WITH THE SHORTEST WAVELENGHTS AND THE HIGHEST FREQUENCIES.
TRANSPARENT A TYPE OF MATERIAL THAT TRASMITTS LIGHT WITHOUT SCATTERING IT.
TRANSLUCENT A TYPE OF MATERIAL THAT SCATTERS LIGHT AS IT PASSES THROUGH.
OPAQUE A TYPE OF MATERIAL THAT REFLECTS OR ABSORBS ALL OF THE LIGHT THAT STRIKES IT.
DIFFUSE REFLECTION REFLECTION THAT OCCURS WHEN PARALLEL LIGHT RAYS HIT AN UNEVEN SURFACE AND ALL REFLECT AT DIFFERENT ANGLES.
CONVEX A MIRROR THAT CURVES OUTWARD OR LENS THAT IS THICKER IN THE CENTER THAN AT THE EDGES.
FOCAL POINT THE POINT AT WHICH LIGHT RAYS PARALLEL TO THE OPTIC AXIS MEET, AFTER BEING REFLECTED (OR REFRACTED)BY A MIRROR(OR LENS).
CONCAVE A MIRROR WITH A SURFACE THAT CURVES INWARD OR A LENS THAT IS THINNER AT THE CENTER THAN AT THE EDGES.
Created by: dougteach65
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