8.8C Electromagnetic Spectrum

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes visible light, radio waves, infrared, ultraviolet, X-rays, and gamma rays.

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that can be detected by the human eye, typically ranging from wavelengths of about 400 nm (violet) to 700 nm (red).

Front

What is the correct order of the visible light spectrum starting with the longer wavelength?

Back

Red, orange, yellow, green, blue, indigo, violet.

Front

Which color of visible light has the longest wavelength?

Back

Red has the longest wavelength in the visible light spectrum.

Front

Which color of visible light has the shortest wavelength?

Back

Violet has the shortest wavelength in the visible light spectrum.

Front

What are radio waves?

Back

Radio waves are a type of electromagnetic radiation with wavelengths longer than infrared light, commonly used for communication, such as in cell phones and radios.

Front

What is infrared radiation?

Back

Infrared radiation is electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves, often associated with heat.

Front

What is ultraviolet light?

Back

Ultraviolet light is electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays, known for its ability to cause sunburn.

Front

What is the frequency of infrared waves?

Back

The frequency of infrared waves is typically around 10^12 Hz.

Front

What device uses radio waves to function?

Back

A cell phone uses radio waves to transmit and receive signals.