EM Spectrum

Front

What is the electromagnetic spectrum?

Back

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

Front

What type of light can be detected by the human eye?

Back

Visible light is the portion of the electromagnetic spectrum that can be detected by the human eye.

Front

Which type of radio wave has a larger wavelength, FM or AM?

Back

AM radio waves have a larger wavelength compared to FM radio waves.

Front

What type of electromagnetic radiation can cause sunburn?

Back

Ultraviolet light has high enough energy to cause sunburn.

Front

Which electromagnetic radiation has the shortest wavelength?

Back

Gamma rays have the shortest wavelength in the electromagnetic spectrum.

Front

What type of EM wave is used by cell phones and televisions?

Back

Radio waves are used by cell phones and televisions, and they have the longest wavelength with the lowest frequency.

Front

What is the wavelength range of visible light?

Back

The wavelength range of visible light is approximately 400 to 700 nanometers.

Front

What is the frequency range of radio waves?

Back

Radio waves have a frequency range from about 3 kHz to 300 GHz.

Front

What is infrared radiation used for?

Back

Infrared radiation is commonly used in remote controls, thermal imaging, and night vision.

Front

What is the relationship between wavelength and frequency in electromagnetic waves?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.