2.3 Electromagnetic Spectrum Flashcard

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is a broad range of radiation that carries energy in the form of waves, including radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

Front

Which type of electromagnetic radiation has the lowest energy?

Back

Microwave.

Front

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

Back

Energy and frequency have a direct relationship; as frequency increases, energy also increases.

Front

What happens to frequency as the wavelength of a wave increases?

Back

As the wavelength of a wave gets longer, the frequency of the wave will decrease.

Front

Why do ultraviolet rays cause sunburn while visible light does not?

Back

Ultraviolet rays have higher frequencies than visible light rays and thus have more energy, which can damage skin.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests or troughs of a wave.

Front

What is frequency?

Back

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

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency have an inverse relationship; as wavelength increases, frequency decreases.

Front

What type of electromagnetic radiation is used in microwave ovens?

Back

Microwaves.

Front

What is the order of the electromagnetic spectrum from lowest to highest energy?

Back

Radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays.