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Waves 8A Class709
Question | Answer |
---|---|
Wave | disturbance moves through matter and space , and carries energy. |
transverse waves | Mechanical wave that causes particles in matter to move at the right angles to the directions the wave travels. |
Compressional Wave | Mechanical Wave that causes particles in the matter move back and forth along the direction the wave travels. |
Wave Length | Distance between one point on a wave and the nearest point in one second, measured in hertz (HZ). |
Law of reflection | Waves makes with the surface |
Refraction | Change in the direction of a wave when it changes speed as it travels from one material into another. |
diffraction | bending of waves around an object |
Intensity | Amount of Energy a wave carries past a certain area each second. |
Reverberation | Repeated echo's of a sound waves. |
Electromagnetic Wave | Waves that can travel through matter or empty space; includes radio waves ; infrared waves; visible light waves ; Ultraviolet Waves; x rays , And Gamma Rays. |
Electromagnetic Spectrum | Complete range of electromagnetic wave frequencies and wave length. |
Infrared Waves | Electromagnetic Wave with wave lengths between about one thousandth of a meter and 700 billionth of a meter. |
Ultraviolet Waves | Electromagnetic Wave with wave lengths between 400billionth and 10 billionth of a meter. |
Pitch | Is the Human Preception of frequence of sound. |