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 wavelength?

Back

Wavelength is the distance from the crest of one wave to the crest of the next wave.

Front

Which type of electromagnetic wave has the highest frequency?

Back

Gamma rays have the highest frequency and the shortest wavelength.

Front

What are radio waves used for?

Back

Radio waves are used in broadcasting, wifi, and texting.

Front

How much of the electromagnetic spectrum is visible light?

Back

Visible light makes up a small portion of the electromagnetic spectrum.

Front

What are ultraviolet rays?

Back

Ultraviolet rays are electromagnetic waves that are invisible to humans but can help the body produce vitamin D.

Front

What is frequency?

Back

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

Front

What is amplitude?

Back

Amplitude is the height of the wave from its rest position to its crest, indicating the energy of the wave.

Front

What type of waves are used in microwave ovens?

Back

Microwaves are used in microwave ovens to heat food.

Front

What is the relationship between wavelength and frequency?

Back

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