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, microwaves, infrared, ultraviolet, X-rays, and gamma rays.

Front

Which parts of the electromagnetic spectrum have a higher frequency than visible light?

Back

Ultraviolet, X-ray, and gamma rays.

Front

What type of radiation from the sun causes sunburn?

Back

Ultraviolet radiation.

Front

How are different types of light (radiation) arranged along the electromagnetic spectrum?

Back

By the amount of energy they carry.

Front

How are electromagnetic waves different from other waves?

Back

They can travel through empty space.

Front

What type of waves are used to transmit cell phone signals?

Back

Microwaves.

Front

What is the speed of electromagnetic waves in a vacuum?

Back

Approximately 299,792 kilometers per second (the speed of light).

Front

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

Back

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

Front

What are radio waves used for?

Back

Radio waves are used for communication, including television, radio broadcasting, and cell phone signals.

Front

What is infrared radiation commonly used for?

Back

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