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 wave has the shortest wavelength?

Back

Gamma rays have the shortest wavelength in the electromagnetic spectrum.

Front

What type of electromagnetic waves are used in heat lamps and TV remote controls?

Back

Infrared rays are used in heat lamps and TV remote controls.

Front

How do electromagnetic waves differ from mechanical waves?

Back

Electromagnetic waves can travel through empty space, while mechanical waves require a medium (like air or water) to travel.

Front

What is the relationship between wavelength and frequency?

Back

As the wavelength of a wave increases, its frequency decreases, and vice versa.

Front

What type of electromagnetic waves have the highest frequencies?

Back

Gamma rays have the highest frequencies in the electromagnetic spectrum.

Front

What is the frequency of a wave with a large wavelength?

Back

A wave with a large wavelength will have a low frequency.

Front

What are microwaves used for?

Back

Microwaves are commonly used in microwave ovens and for communication technologies.

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye, ranging from red to violet.

Front

What are ultraviolet rays?

Back

Ultraviolet rays are electromagnetic waves with shorter wavelengths than visible light, often associated with sunburn.