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EM Spectrum Vocab
Term | Definition |
---|---|
the brightness a star would have if it were at a standard distance from Earth. | absolute brightness |
The height of a transverse wave from the center to a crest or trough. | amplitude |
The complete range of electromagnetic waves placed in order of increasing frequency. | electromagnetic spectrum |
the number of complete waves that pass a given point in a certain amount of time. | frequency |
The material through which a wave travels. | medium |
The transfer of energy by electromagnetic waves. | radiation |
The bending of waves as they enter a new medium at an angle, caused by a change in speed. | refraction |
object will allow light to pass through it and objects on the other side of the material will be clearly seen | transparent |
electromagnetic radiation that can be seen with the unaided eye. | visible light |
The transfer of energy from a wave to a material that it encounters. | absorption |
the energy transferred through space by electromagnetic waves. | electromagnetic radiation |
Electromagnetic waves with shorter wavelengths and higher frequencies than microwaves. | infrared |
is an object's level of resistance to visible light and other forms of radiation. | opaque |
The bouncing back of an object or a wave when it hits a surface through which it cannot pass. | reflection |
the material will allow light to pass through it but objects on the other side will not be clearly seen | translucent |
Electromagnetic waves with wavelengths shorter than visible light but longer than X-rays. | ultraviolet |
the distance between two corresponding parts of a wave, such as the distance between two crests. | wavelength |