Universe & Galaxy & Stars Test review

Which of the following correctly places these in order from LARGEST to SMALLEST?

• galaxy -- local group/cluster -- planet -- solar system -- universe

• universe -- galaxy -- solar system -- planet

• planet -- solar system -- galaxy -- universe

• universe -- galaxy -- solar system -- local group/cluster -- planet

A galaxy which is either spherical (football like) or a flattened disk is a ___ galaxy.

• elliptical

• humanoid

• irregular

• spiral

Tags

NGSS.MS-ESS1-2

A Group of stars, and or star systems, star clusters, dust and gas held together by gravity is known as:

• Universe

• Galaxy

• Solar System

• Planet

Tags

NGSS.MS-ESS1-2

What best describes the doppler effect?

• An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
• When sound changes pitch
• When light changes color
• An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.

Tags

NGSS.HS-PS4-5

If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...

• Moving towards the Earth
• Moving away from the Earth
• This is a trick question that cannot be answered
• It isn't a star, it is a very large blueberry.

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

Use the image to identify the motion of the object relative to Earth.  Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.

• It is not moving
• It is moving away from Earth (Redshift)
• It is moving towards Earth (Blueshift)
• It is moving towards Earth (Redshift)

Tags

NGSS.HS-PS4-3

What does the Big Bang Theory tell us

• About the popular television show.

• the entire universe was once condensed in the form of a dense mass called a singularity

• It explain exactly how the universe began.

Tags

NGSS.HS-ESS1-2

How does the abundance of hydrogen and helium support the Big Bang Theory.

• Hydrogen and helium are elements on the Periodic Table

• Hydrogen and helium are in the same ratio throughout the universe.

• Hydrogen and helium have many current uses today

Tags

NGSS.HS-ESS1-2

Our theory of the universe was confirmed by the discovery of:

• fusion.
• cosmic microwave background radiation.
• the Andromeda galaxy.
• the Doppler effect.

Tags

NGSS.HS-ESS1-2

How far across is the Milky Way Galaxy?

• 100 light years across

• 1,000 light years across

• 10,000 light years across

• 100,000 light years across