Formation of the Universe Homework

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.

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NGSS.HS-PS4-1

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If a star is being observed from Earth and it's light has shifted towards the blue 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-PS4-1

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

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The vast majority of galaxies in our universe are moving away from us.  We know this because we observe __________ in the galaxies absorption spectra.

• Redshift
• Blueshift
• Turbulance
• Superposition

Tags

NGSS.HS-ESS1-2

Hubble observed that galaxies are

• expanding
• moving away from us
• moving towards us
• standing still

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NGSS.HS-ESS1-2

What does the Big Bang theory suggest?

• The universe was just there
• The Milky Way is the only solar system
• The universe is continually expanding
• The universe started as a point and is moving towards each other

Tags

NGSS.HS-ESS1-2

What is Cosmic Background radiation?

• Evidence of the universe being compacted into a very hot dense area and then expanding with an explosion

• It is the life force that supports the universe
• Evidence of blackholes actually existing
• Evidence of that the universe is heating

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NGSS.HS-ESS1-2

electromagnetic waves that are visible to the human eye

• Galaxy
• Redshift
• Visible Light
• Radio Waves

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What is red shift?

• Wavelengths of light being stretched out because the object emitting light is moving away from us

• Wavelengths of light being stretched out because the object emitting light is moving toward from us

Tags

NGSS.HS-ESS1-2

Which of the following can be used to explain how the universe is expanding?

• raisins
• a balloon

• a sock

• a bowling ball

Tags

NGSS.HS-ESS1-2