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 type of electromagnetic wave can humans see?

Back

Humans can see visible light, which is a small part of the electromagnetic spectrum.

Front

What is ultraviolet light?

Back

Ultraviolet (UV) light is a type of electromagnetic radiation that is not visible to the human eye but can be seen by some animals, such as butterflies and hedgehogs.

Front

What are radio waves used for?

Back

Radio waves are used for communication, including radio and television broadcasting, as well as radar technology.

Front

What is an X-ray?

Back

An X-ray is a type of electromagnetic radiation that can penetrate solid objects and is commonly used in medical imaging to view bones and internal structures.

Front

What is the primary use of gamma rays?

Back

Gamma rays are used in medical treatments, such as cancer therapy, and in imaging techniques due to their high energy.

Front

What is infrared radiation?

Back

Infrared radiation is a type of electromagnetic radiation that is felt as heat and is used in various technologies, including remote controls and thermal imaging.

Front

How do microwaves work?

Back

Microwaves are a type of electromagnetic radiation that is used in microwave ovens to heat food by causing water molecules to vibrate.

Front

What is the difference between visible light and ultraviolet light?

Back

Visible light is the part of the electromagnetic spectrum that can be seen by the human eye, while ultraviolet light is invisible to humans but can cause sunburn.

Front

What is the role of radar in locating objects?

Back

Radar uses radio waves to detect the distance and speed of objects, such as airplanes and weather patterns.