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Waves
Electricity
Term | Definition |
---|---|
Diffraction | bending of waves around an object |
Electromagnetic Wave | waves that can travel through matter or empty space |
Electromagnetic Spectrum | complete range of electromagnetic wave frequencies and wavelengths |
Compressional Wave | mechanical wave that causes particles in matter to move back and forth along the direction the waves travel |
Transverse Wave | mechanical wave that causes particles in matter to move at right angles to the direction the wave travels |
Intensity | amount of energy a wave carries past a certain area past a certain area each second |
Pitch | human perception of the frequency of sound |
Infrared Wave | electromagnetic wave with wavelengths between about one thousandth of a meter and 700 billionths of a meter |
Reverberation | repeated echoes of sound waves |
Wavelength | distance between one point on a wave and the nearest point moving with the same speed of direction |
Wave | disturbance that moves through matter and space and carries energy |
Frequency | number of wavelengths that pass a given point in one second, measuring in hertz |
Refraction | change in direction of a wave when it speed as it travels from one material into another |
Ultraviolet Waves | electromagnetic waves with wavelengths between about 400 billionths and 10 billionths of a meter |
Law of Reflection | states that the angle the incoming wave makes with the normal to the reflecting surface equals the angle the reflected wave makes with the surface |