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Waves,Sound,Light

Vocabulary

TermDefinition
WAVE Rhythmic disturbances that carry energy without carrying matter.
MECHANICAL WAVE these types of waves, which use matter to transfer energy
TRANSVERSE WAVE the wave energy causes the matter in the medium to move up and down or back and forth at right angles to the direction wave travels
COMPRESSION WAVE matter I the medium moves forward and backward along the same direction that the wave travels
ELECTRONMAGNETIC WAVE waves that can travel through space where there is no matter
AMPLITUDE Transverse wave is one-half the distance between a crest and through.
WAVE LENGTH distance from the top of one crest to the top of the next crest, or from bottom of one through to the bottom of the next through
FREQUENCY Is the wave is the number of wave lengths that pass a given point.
REFRACTION The bending of wave as it moves from one medium into another
DIFFREACTION Is bending of waves around barner
INTERFERENCE The ability of 2 wave combined and form a new wave when they overlap
REFLECTION Occurs when a wave strikes an object or surface and bounces off
B CHAPTER 17- SOUND
LOUDNESS human perception of how much energy a sound wave carries
PITCH sound is how high or low it sounds
ECHO reflected sound wave
DOPPLER EFFECT change in frequency that occurs when a source of sound is moving relative to a listener
MUSIC group of sounds that have been deliberately produced to make a regular pattern.
NATURAL FREQUENICES every object will vibrate at certain frequencies
RESONANCE occurs when an object is made to vibrate at its natural frequencies by absorbing energy from a sound wave
FUNDAMENTAL FREQUENCY lowest frequency produced by a vibrating object
OVERBONES higher frequencies
EARDRUM sound waves reach the middle ear, they vibrate
FEBERATION repeated echoes of sound
C CHAPTER 18- ELECTROMAGNETIC WAVES
ELECTROMAGNET WAVE a wave that can travel through empty space or through matter
RADIANT ENERGY energy carried by an electromagnetic wave
RADIO WAVES have the lowest frequencies of all the electromagnetic waves & carry the least energy
INFRARED WAVES electromagnetic waves/ have wave lengths between about one thousandth
VISIBLE LIGHT electromagnetic waves you can detect with your eyes
ULTRAVIOLET RADIATION higher in frequency than visible light and even shorter wavelengths
X-RAYS even higher frequency than ultraviolet rays, have enough energy to go right through skin and muscle
GAMMA RAYS highest frequency and carry the most energy
CARRIER WAVES radio waves broadcast by a station at its assigned frequency
GLOBAL POSITIONING SYSTEM used to locate objects on earth
ELECTROMAGNETIC SPECTRUM wide range of electromagnetic waves with different frequencies and wavelength forms
D CHAPTER 19-LIGHT, MIRRORS, AND LENSES
LIGHT RAY narrow beam of light that travels in a straight line
MEDIUM material through which a wave travels
LAW OF REFLECTION angle of incidence is equal to the angle of reflections
FOCAL POINT light rays that travel parallel to the optional xis & strike the mirror are reflected so that they pass
LENS transparent objects with least one curved side that causes light to bend
CONVEX LENS lens that is thicker in the center than at the edges
CONCARE LENS lens that is thicker at the edges than in the middle
FOCAL LENGTH distance along the optical axis from the center of the mirror to the focal point
Created by: TyWilliams
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