Mrs. Gaskill's Unit 2 Space Systems Review

Front

What type of electromagnetic waves have the longest wavelength?

Back

Radio waves.

Front

Define a light year.

Back

A light year is the distance that light travels in one year in a vacuum.

Front

What is the term for the ability to make things move or change?

Back

Energy.

Front

How do we primarily gain knowledge about the universe?

Back

Through observation of light from astronomical objects.

Front

What does the blue section of a wave represent?

Back

Wavelength.

Front

What are the different types of electromagnetic waves in order of increasing wavelength?

Back

Gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves, radio waves.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (or about 186,282 miles per second).

Front

What is the significance of the electromagnetic spectrum in astronomy?

Back

It allows astronomers to study different types of radiation emitted by celestial objects, providing insights into their properties and behaviors.

Front

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

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.

Front

What is the role of energy in the context of electromagnetic waves?

Back

Energy is carried by electromagnetic waves and is related to their frequency; higher frequency waves carry more energy.