Hierarchy of the Universe and Big Bang

The big bang theory states that the universe _____________________________.

• is contracting

• started as a single mass

• has no beginning

• is constantly forming hydrogen

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NGSS.HS-ESS1-2

Which of these statements is not considered part of the big bang theory?

• The universe is expanding

• The universe never changes.

• The universe began in a hot, dense state.

• The universe began at a single point and time.

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NGSS.HS-ESS1-2

According to the modern theory of the universe’s origin, which graph best shows the trend in the volume of the universe over time?

• 
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• 
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NGSS.HS-ESS1-2

Which theory states that the universe originated as a single mass?

• astronomical

• steady state

• big bang

• catastrophism

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NGSS.HS-ESS1-2

according to the big bang theory, how is the universe changing?

• it is contracting

• it is expanding

• only the rim is expanding

• on the center is contracting

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NGSS.HS-ESS1-2

The universe is believed to be approximately 14 billion years old. As a result of gravitational attraction, which most likely developed first after the big bang?

• a planet

• a comet

• a moon

• a star

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NGSS.HS-ESS1-2

Radio astronomers Arno Penzias and Robert Wilson discovered a microwave signal during their research in 1964. The microwaves were uniform and coming from all directions in the sky. The phenomenon known as Cosmic Microwave Background (CMB) provided evidence that the universe was once very hot and dense.

How did CMB contribute to the big bang theory?

• CMB confirmed how matter expanded during the big bang.

• CMB was the magnetic field that was created during the big bang.

• CMB was a reflection of the thermal energy generated during the big bang.

• CMB represented energy trails from moving matter that began with the big bang.

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NGSS.HS-ESS1-2

What scientific observation did Edwin Hubble use to determine distances between galaxies?

• As the light source passes Earth, the wavelength increases as the frequency increases.

• As the light source moves toward Earth, the wavelength decreases as the frequency increases.

• As the light source moves away from Earth, the wavelength increases as the frequency decreases.

• As the light source affects the gravity of Earth, the wavelength decreases as the frequency decreases.

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NGSS.HS-ESS1-2

The event that marks the beginning of our known universe

• Theory of Evolution

• Big Bang Theory

• Cell Theory

• Blackhole theory

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NGSS.HS-ESS1-2

What is the hierarchical structure of the universe from smallest to largest?

• A) Solar System, Galaxy, Universe, Cluster

• B) Galaxy, Solar System, Cluster, Universe

• C) Solar System, Galaxy, Cluster, Universe

• D) Cluster, Solar System, Galaxy, Universe