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Waves
vocabulary
Term | Definition |
---|---|
compressional wave | mechanical waves that cause particles in matter to move back and forth |
diffraction | Bending of waves around an object. |
electromagnetic spectrum | complete range of electromagnetic waves in frequency and wavelength |
electromagnetic wave | waves that can travel through matter or empty space |
frequency | The number of wavelength that passes and given point in one second,measured in hertz. |
in fared waves | electromagnetic waves with wavelenghths between one thousandths of a meter 700 billions |
intensity | amount of energy a wave carries past a certain area each second |
law of reflection | Waves made with normal to the reflection surface equals the angle of the reflection waves makes with the surface. |
pitch | human perception of the frequency and sound |
refraction | Change in direction of a wave when change of speed as it travels from on material to another. |
reverberation | repeated echoes of sound waves |
transverse waves | mechanical waves that cause particles in matter to move at a righ angle |
ultraviolet waves | electromagnetic waves withlenghts between 400 billionths and 10 billionths of a meter |
waves | Disturbance that moves through matter and space carries energy. |
wavelength | Distance between one point on a wave and a nearest point moving with the same speed and in the same direction. |