The Electromagnetic Spectrum - Ch 3
Transverse waves that transfer electrical and magnetic energy.
The energy transferred through space by electromagnetic waves.
Light that vibrates in only one direction.
The ejection of electrons from a substance when light is shined on it.
A tiny particle or packet of light energy.
The complete range of electromagnetic waves placed in order of increasing frequency.
Electromagnetic waves with the longest wavelengths and lowest frequencies.
Radio waves with the shortest wavelengths and highest frequencies.
A system that uses reflected radio waves to detect objects and measure their distance and speed.
Electromagnetic waves with wavelengths shorter than radio waves but longer than visible light.
An image that shows regions of different temperatures in different colors.
Electromagnetic waves that are visible to the human eye.
Electromagnetic waves with wavelengths shorter than visible light, but longer than X-rays.
Electromagnetic waves with wavelengths shorter than ultraviolet rays, but longer than gamma rays.
Electromagnetic waves with the shortest wavelengths and highest frequencies.
Word used to describe an object that can be seen because it reflects light.
Word used to describe an object that can be seen because it emits light.
An instrument used to view the different colors of light produced by different light sources.
Light bulb that glows when a filament inside it gets white hot.
Light bulb that glows when an electric current causes ultraviolet rays to strike a coating inside a tube.
Glas tube containing neon gas that produces light.
A method of transmitting signals by changing the amplitude of a wave.
A method of transmitting signals by changing the frequency of a wave.
a bulb that has a tungsten filament and contains a halogen gas such as iodine or bromine
a bulb that contains neon or argon gas and a small amount of solid sodium or mercury