AST Module 4 Practice Quiz

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Practice quiz for Module 4 Exam

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What is the doppler effect?

3 points

An addedum technology built to help withstand global warming of other planets.

an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other

A technology only used for meterology

The effect of neurotransmitters in the brain which affect olverall mood.

Clear selection

Which is the proper order of the electromagnetic spectrum from largest wavelength to smallest wavelength.

3 points

Gamma - Xray - Ultraviolet - Visible - Infrared - Radio - Micro

Gamma - Xray - Ultraviolet - Visible - Infrared - Micro - Radio

Radio - Micro- Ultraviolet. - Visible - Infrared - Xray - Gamma

Radio - Micro- Infrared. - Visible - Ultraviolet - Xray - Gamma

Clear selection

Which is true about the relationship between frequency and energy of waves?

3 points

Higher Frequency = Higher Energy

Higher Frequency = Lower Energy

Lower Frequency = Higher Energy

Higher Frequency = Larger Wavelength

Other:

Clear selection

What is the order of stars according to their temperature from coolest to hottest?

3 points

Red - Orange - Yellow - Blue - White

Red -Yellow - Orange - Blue - White

Red -Yellow - Orange - White - Blue

Red - Orange - Yellow - White - Blue

Clear selection

Which spectral class is the hottest?

3 points

Clear selection

In this formula, what does "v" stand for?

λ = v/f

3 points

Wavelength

Speed of sound

Speed of light

Velocity of graviational pull

Clear selection

Which element do stars rely on fo fuel throughout their main sequence?

3 points

Hydrogen

Lithium

Beryllium

Helium

Clear selection

What is the closest meaning of "Parsec"

3 points

Parallax second, it is a unit of time.

Particulate second, it is a unit of distance.

Particulate second, it is a unit of time.

Parallax second, it is a unit of distance.

Clear selection

What is this a picture of?

3 points

Black body curve

HR Diagram

HR monitor

Blackhole curve

Clear selection

What is the use of an HR diagram?

3 points

a scatter plot of stars showing the relationship between the stars' apparent magnitudes versus their temperatures.

a scatter plot of stars showing the relationship between the stars' apparent magnitudes versus their distance from Earth.

a scatter plot of stars showing the relationship between the stars' absolute magnitudes versus their temperatures

a scatter plot of stars showing the relationship between the stars' absolute magnitudes versus their distance

Clear selection

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