E 5 Space Unit Test

How are elements bigger than Helium, but smaller than Iron form?

• Produced by nuclear fusion within stars.

• All of the elements were produced during the initial collision of plasma particles before the stars existed.

• Already existence before the Big Bang.

• Produced by creation of galaxies.

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NE.SC.HS.11.1.C.

Which statement correctly describes why the existence of cosmic microwave background radiation (CMBR) is one of the lines of evidence used to support the Big Bang theory?

• The CMBR is blue shifted to the degree.

• The remnant radiation predicted by the Big Bang theory matches that of the CMBR once red shift is accounted for.

• The CMBR is evidence that the universe started very cold.

• There is no other way to account for the static.

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NE.SC.HS.11.1.C.

Complete the statement. The more massive a star is the​ (a)   the star's life, because it goes through its fuel​ (b)   .

• shorter
• faster
• longer
• slower

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NE.SC.HS.11.1.A.

Complete the statement.

The more ​hydrogen a star has, the ​ (a)   it spends as ​ (b)   .

• main sequence
• longer
• shorter
• red giant
• protostar

Tags

NE.SC.HS.11.1.A.

In the red shift effect, when light moves away from us, it looks more red. When light moves toward us, it appears more blue. Scientists have observed that the edges of the universe look red no matter where they look. What does this tell us about the galaxies around us, and how does it support the Big Bang theory?

• The galaxies are staying still, indicating that the energy in the Big Bang has been depleted.

• The galaxies are moving toward us, which indicates that the universe continues to get smaller.

• The galaxies are rotating around a central point, indicating a significant gravitational pull from the Big Bang.

• The galaxies are moving away from us, which indicates that the universe was once smaller and more dense and is continuing to expand.

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NE.SC.HS.11.1.C.

The diagram depicts the life cycle of a star. All matter in the universe can be linked to this process. Which statement explains the origin of the elements heavier than iron in the universe?

• When the iron core of a red giant star collapses, it creates a supernova.

• When the iron core of a red giant star collapses, it creates a planetary nebula.

• When the iron core of a red supergiant star collapses, it creates a supernova.

• When the iron center of a red supergiant star falls in on itself, it creates a planetary nebula.

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NE.SC.HS.11.1.C.

The lifespan of a star depends on its initial mass. What are the ages of the stars shown in the table in billions of years? Write the letter of the numbers in the boxes to correctly identify the approximate lifespan of each star.

a

b

c

d

A

B

C

D

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NE.SC.HS.11.1.A.

The ​​ (a)   magnitude of a star changes with the ​ (b)   between the star and the observer, whereas the ​ (c)   magnitude is the measure of how bright each star would be if it were at the same distance (10 parsecs) from an observer.

• apparent
• distance
• absolute
• time
• mass

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NE.SC.HS.11.1.C.

Order the phases of a star's life cycle. Starting with the earliest.

• white dwarf

• protostar

• red giant

• main squence

Tags

NE.SC.HS.11.1.A.

Order the steps energy must take in order to be transfered to Earth. Start with the first step.

• Energy in the form of light travels through the radiaivtive zone.

• Energy is released through Nuclear Fusion

• Radiaiton cycles through the convection layer

• Energy is released and travels through space.

Tags

NE.SC.HS.11.1.A.