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

Which type of electromagnetic waves has the highest energy?

Back

Gamma rays have the highest energy and are the most dangerous type of electromagnetic waves.

Front

Which type of electromagnetic waves has the lowest frequency?

Back

Radio waves have the lowest frequency in the electromagnetic spectrum.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, causing objects to appear broken or displaced.

Front

What is the relationship between wavelength and frequency?

Back

When the wavelength decreases, the frequency increases.

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 visible spectrum?

Back

The visible spectrum is the portion of the electromagnetic spectrum that can be seen by the human eye, ranging from red (longest wavelength) to violet (shortest wavelength).

Front

What are microwaves used for?

Back

Microwaves are used for cooking food, in communication technologies, and in radar systems.

Front

What is the difference between reflection and refraction?

Back

Reflection is the bouncing back of light when it hits a surface, while refraction is the bending of light as it passes through different materials.

Front

What is ultraviolet light?

Back

Ultraviolet light is a type of electromagnetic radiation that is not visible to the human eye and can cause sunburn.