8.8C 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, X-rays, and gamma rays, among others.

Front

What type of electromagnetic radiation has the longest wavelength?

Back

Radio waves have the longest wavelength in the electromagnetic spectrum.

Front

What type of electromagnetic radiation has the shortest wavelength?

Back

Gamma rays have the shortest wavelength in the electromagnetic spectrum.

Front

What is the visible light spectrum?

Back

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

Front

What happens to light from a star that is moving away from Earth?

Back

The light from a star moving away from Earth shifts towards the red end of the spectrum, known as redshift.

Front

What is the Doppler Effect?

Back

The Doppler Effect is the change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.

Front

What type of telescope is used to observe radio waves?

Back

Radio telescopes are used to observe radio waves.

Front

What type of telescope is used to observe X-rays?

Back

X-ray telescopes are used to observe X-rays.

Front

What is the order of colors in the visible light spectrum from longest to shortest wavelength?

Back

Red, orange, yellow, green, blue, indigo, violet.

Front

What is infrared radiation?

Back

Infrared radiation is a type of electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.