Chapter 4 Astronomy Test

Which one of the following is an example of a blackbody that you see in everyday life?

• a fluorescent light

• a stove burner

Which of the following emits a spectrum very close to a blackbody spectrum?

• a neon light

• the Sun

An X-ray telescope placed on the surface of Earth can detect X-rays that are emitted from a distant astrophysical source. (BONUS QUESTION)

• true

• false

Which of the following colors has the shortest wavelength?

• blue

• violet

As the frequency of light increases, its energy __________.

• increases

• remains constant

A significant source of gamma rays is __________.

• a thermonuclear explosion

• a supernova explosion

A very energetic event like a supernova would emit mostly _________ light.

• X-ray

• white

The energy of a radio photon is _________ a photon in the visible part of the spectrum.

• lower than

• higher than

A _________ is a particle of light.

• electron

• photon

What are some of the things astronomers can learn about astronomical objects from their spectra?

• All of these choices are correct.

• whether a gas or solid or combination, due to the type of spectrum