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Waves
| Term | Definition |
|---|---|
| Wave | A disturbance that moves through matter or space. |
| Transverse Wave | Cause particles in matter to move back and forth at right angles to the direction in which the wave travels. |
| Compressional Wave | Causes particles in matter to move back and forth along the same direction in which the wave travels. |
| Wavelength | The distance between one point on a wave and the nearest point moving with the same speed and direction is the wavelength |
| Frequency | The number of wavelengths that pass by a point each second |
| Law of Reflection | The angle that the incoming wave makes with the normal equals the angle that the out going wave makes with the normal. |
| Refraction | the change in direction of the wave when it changes speed as it travels from one material to another. |
| Diffraction | Bending of waves around an object. |
| Opaque | Materials allow no light through |
| Translucent | Allows some light through |
| Transparent | Materials allow nearly all light to pass through |
| Reflect | A light hitting an object and bouncing off of it |
| Absorb | Soak up light |
| Transmit | Let's light through object |
| Loudness | As the amplitude energy increases the sound gets louder |
| Pitch | As the energy decreases softer |
| Echo Location | To navigate |
| Echo | A reflected sound wave |
| Doppler Effect | The change in frequency that occurs when a source of sound is moving relative to a listener. |
| Electromagnetic spectrum | Complete range of electromagnetic wave frequencies and wavelengths |
| Electromagnetic Wave | Waves that can travel through matter or empty space,Includes radio waves visible light waves |
| Infrared Wave | Electromagnetic waves with wave lengths |
| Reverberation | repeated echos of sound wave |
| Ultraviolet |