Flashcardizz: Reading the 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 frequency in the context of electromagnetic waves?

Back

Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz). Higher frequency means more energy and shorter wavelength.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave, typically measured in meters. It is inversely related to frequency.

Front

Which type of electromagnetic radiation has the longest wavelength?

Back

Radio waves have the longest wavelength in the electromagnetic spectrum.

Front

Which type of electromagnetic radiation has the shortest wavelength?

Back

Gamma rays have the shortest wavelength in the electromagnetic spectrum.

Front

How does the energy of electromagnetic waves relate to frequency?

Back

The energy of electromagnetic waves is directly proportional to their frequency; higher frequency waves carry more energy.

Front

What is infrared radiation?

Back

Infrared radiation is a type of electromagnetic radiation with wavelengths longer than visible light but shorter than microwaves, commonly associated with heat.

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye, ranging from approximately 400 to 700 nanometers in wavelength.

Front

What are X-rays used for?

Back

X-rays are a form of electromagnetic radiation used primarily in medical imaging to view the inside of the body.

Front

What is the order of electromagnetic radiation from longest to shortest wavelength?

Back

The order is: Radio waves -> Microwaves -> Infrared -> Visible light -> Ultraviolet -> X-rays -> Gamma rays.