Electromagnetic waves

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves of energy that travel through space at the speed of light, consisting of oscillating electric and magnetic fields.

Front

What is the wavelength of X-rays?

Back

X-rays have wavelengths in the range of 10^-11 to 10^-8 meters.

Front

What type of electromagnetic wave has the longest wavelength?

Back

Red light has the longest wavelength in the visible spectrum.

Front

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

Back

The higher the frequency of an electromagnetic wave, the higher its energy.

Front

What are the different types of electromagnetic waves in order of increasing wavelength?

Back

Gamma rays, X-rays, Ultraviolet, Visible light, Infrared, Microwaves, Radio waves.

Front

What is the frequency range of radio waves?

Back

Radio waves have frequencies ranging from about 3 kHz to 300 GHz.

Front

What is the speed of electromagnetic waves in a vacuum?

Back

Electromagnetic waves travel at the speed of light, which is approximately 3 x 10^8 meters per second.

Front

What type of electromagnetic wave is used in microwave ovens?

Back

Microwaves are used in microwave ovens to heat food.

Front

What is the visible spectrum?

Back

The visible spectrum is the portion of the electromagnetic spectrum that can be seen by the human eye, ranging from approximately 400 nm (violet) to 700 nm (red).

Front

What is the wavelength of visible light?

Back

Visible light has wavelengths ranging from about 400 nm (violet) to 700 nm (red).