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

What is the relationship between wavelength and frequency?

Back

As wavelength decreases, frequency increases. This means that shorter wavelengths correspond to higher frequencies.

Front

What is the unit of measurement for frequency?

Back

The unit of measurement for frequency is Hertz (Hz).

Front

What type of wave has the highest frequency in the electromagnetic spectrum?

Back

Gamma rays have the highest frequency in the electromagnetic spectrum.

Front

What type of wave has the longest wavelength in the electromagnetic spectrum?

Back

Radio waves have the longest wavelength in the electromagnetic spectrum.

Front

How is energy related to frequency in electromagnetic waves?

Back

Energy is directly proportional to frequency; higher frequency waves carry more energy.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What is the formula to calculate the speed of a wave?

Back

The formula to calculate the speed of a wave is: Speed = Wavelength × Frequency.

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye, typically ranging from wavelengths of about 400 to 700 nanometers.

Front

What are microwaves used for?

Back

Microwaves are used for various applications, including cooking food, communication, and radar technology.