EM Spectrum

Front

What type of EM wave is used to cook food and has a higher frequency than radio waves?

Back

Microwave

Front

Which type of EM wave is used by cell phones and televisions, characterized by the longest wavelength and lowest frequency?

Back

Radio wave

Front

If an object appears blue, what does this indicate about the colors of light?

Back

All colors are absorbed except blue; blue is reflected.

Front

What portion of the electromagnetic spectrum can be detected by the human eye?

Back

Visible light

Front

If an object appears black, what does this mean about the colors of the visible light spectrum?

Back

All 7 colors of the visible light spectrum are absorbed.

Front

What is the electromagnetic spectrum?

Back

The range of all types of EM radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is the frequency of a wave?

Back

The number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is wavelength in the context of EM waves?

Back

The distance between two consecutive peaks of a wave, usually measured in meters.

Front

What type of EM radiation has the shortest wavelength?

Back

Gamma rays.

Front

What type of EM radiation is used in remote controls?

Back

Infrared radiation.