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Waves,Sound,Light
Vocabulary
| Term | Definition |
|---|---|
| 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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