Electromagnetic 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 is sound?

Back

Sound is a type of energy made by vibrations that travel through air, water, or solid materials.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive peaks of a wave. It is usually measured in meters.

Front

What is frequency?

Back

Frequency is the number of waves that pass a point in one second, measured in hertz (Hz).

Front

How are wavelength and frequency related?

Back

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

Front

What type of EM radiation is used in microwave ovens?

Back

Microwaves are the type of electromagnetic radiation used in microwave ovens to heat food.

Front

What is infrared radiation?

Back

Infrared radiation is a type of electromagnetic radiation that is felt as heat and is used in remote controls and thermal imaging.

Front

What is visible light?

Back

Visible light is the part of the electromagnetic spectrum that can be seen by the human eye, consisting of colors like red, orange, yellow, green, blue, indigo, and violet.

Front

What are x-rays used for?

Back

X-rays are used in medicine to view the inside of the body, especially bones.

Front

What color of light has the longest wavelength?

Back

Red light has the longest wavelength in the visible spectrum.