# Astronomy Quiz

8 Questions

Review for astronomy exam in one hour.

• 1.
How are wavelength, frequency, and energy related for photons of light?
• A.

Longer wavelength means higher frequency and higher energy

• B.

Longer wavelength means lower frequency and higher energy

• C.

Longer wavelenght means lower frequency and lower energy

• D.

Longer wavelength means higher frequency and lower energy

• 2.
• A.

A hot object emits more radio waves than a cool object

• B.

A hot object emits photons with a higher average energy than a cool object

• C.

A hot object emits photons with a longer wavelength than a cool object

• D.

A hot object emits more x rays than a cool object

• 3.
From shortest to longest wavelength, which of the following correctly orders the different categories of electromagnetic radiation?
• A.

Radio, infrared, visible light, ultraviolet, x rays, gamma

• B.

Gamma rays, x rays, ultraviolet, visible light, infrared, radio

• C.

Infrared, visible light, ultraviolet, x rays, gamma rays, radio

• D.

Gamma rays, x rays, visible light, ultraviolet, infrared, radio

• 4.
The spectra of most galaxies show redshifts. This means that their spectral lines _______.
• A.

Have a higher intensity in the red part of the spectrum

• B.

Have wavelengths that are shorter than normal

• C.

Always are in the red part of the visible spectrum

• D.

Have wavelengths that are longer than normal

• 5.
Which is the closest to the temperature of the core of the Sun?
• A.

10,000 K

• B.

100,000 K

• C.

10 million K

• D.

100 million K

• 6.
Why are neutrinos so difficult to detect?
• A.

Because they have no mass

• B.

Because they rarely interact with matter

• C.

Because they move at nearly the speed of light

• D.

Because they are so rare

• E.

Because they are so small

• 7.
The most distant stars we can measure stellar parallax for are approximately
• A.

5 parsecs

• B.

100 parsecs

• C.

Halfway across the Milky Way

• D.

In the Andromeda Galaxy

• E.

10,000 parsecs

• 8.
Which of the following is true about low-mass stars compared to high-mass stars?
• A.

Low-mass stars are cooler but more luminous than high-mass stars

• B.

Low-mass stars are hotter and more luminous than high-mass stars

• C.

Low-mass stars are hotter but less luminous than high-mass stars

• D.

Low-mass stars are cooler and less luminous than high-mass stars

• E.

Low-mass stars have the same temperature and luminosity as high-mass stars

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