Understanding Waves and Electromagnetic Radiation

Front

What are waves?

Back

Waves are disturbances that transfer energy from one place to another without transferring matter.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, organized by wavelength or frequency.

Front

What are radio waves?

Back

Radio waves are a type of electromagnetic radiation with wavelengths longer than infrared light, used for communication.

Front

Where are radio waves located on the electromagnetic spectrum?

Back

Radio waves are located at the lower end of the electromagnetic spectrum.

Front

What are gamma rays?

Back

Gamma rays are high-energy electromagnetic waves with very short wavelengths, found at the upper end of the electromagnetic spectrum.

Front

Where are gamma rays located on the electromagnetic spectrum?

Back

Gamma rays are located at the highest frequency end of the electromagnetic spectrum.

Front

How do rays from the sun travel?

Back

Rays from the sun travel at the speed of light.

Front

What type of electromagnetic wave do humans emit as heat energy?

Back

Humans emit infrared light as heat energy.

Front

What is a medium in the context of waves?

Back

A medium is the material through which a wave travels.

Front

What is the speed of light?

Back

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