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, infrared, ultraviolet, X-rays, and gamma rays.

Front

What property of a wave is represented by amplitude?

Back

Amplitude is the maximum extent of a wave's oscillation, measured from its rest position. It determines the wave's energy; higher amplitude means more energy.

Front

Which type of electromagnetic radiation has the longest wavelength?

Back

Radio waves have the longest wavelength in the electromagnetic spectrum.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests (or troughs) of a wave, typically measured in meters.

Front

What happens to wavelength when frequency increases?

Back

When frequency increases, the wavelength decreases.

Front

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

Back

Higher frequency waves have higher energy, while lower frequency waves have lower energy.

Front

What type of electromagnetic radiation is used in remote controls?

Back

Infrared radiation is commonly used in remote controls.

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 (or about 300,000 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 approximately 400 nm (violet) to 700 nm (red).

Front

What are gamma rays?

Back

Gamma rays are high-frequency electromagnetic waves with very short wavelengths, often produced by radioactive materials and certain astronomical processes.