Which evidence supports the big bang theory?

Uniform background radiation is detected in every direction.

Planetesimals form in debris disks.

Most galaxies are moving toward us.

Galaxies spin faster than they should based on visible matter.

In which order did the events forming our solar system occur?

The solar nebula spun faster and faster and flattened into a rotating disk. Most of the gas was pulled toward the center, where it became hot and dense, forming the Sun.

The solar nebula became hot and dense pulling in more gas.This flattened into a rotating disk. It spun faster and faster, forming the Sun.

Gas was pulled toward the center, forming the Sun. Gas flattened into a rotating disk and became hot and dense, forming a solar nebula that spun faster and faster

Gas flattened into a rotating disk and became hot and dense, forming a solar nebula that spun faster and faster. Gas was pulled toward the center, forming the Sun.

Which statement accurately describes planetesimals?

They are the origins of planets.

They formed from ice and rocks.

They were created during the big bang.

They contain 98% of matter in the solar system.

Which statement accurately describes the inner planets?

The inner planets are also called terrestrial planets.

Uranus is one of the inner planets.

The inner planets formed when the solar system cooled.

The inner planets are larger than the outer planets.

Which statement accurately describes the outer planets?

The outer planets have a high gravity due to their large size.

Pluto is one of the outer planets.

The outer planets are also called rocky planets.

The outer planets have thin atmospheres.

Which two objects in space formed from the huge disk of ice and debris beyond the outer planets?

a solar nebula and planetesimals

Which is currently the most supported theory about the future of the universe?

The universe may continue to expand.

The universe could remain exactly as it is today.

Stars could burn out, causing the universe to become dark and cold.

Gravity could pull galaxies back together, causing a reverse of the big bang.

Which statement accurately describes dark matter?

It does not emit electromagnetic radiation.

It is well understood by scientists.

It can be observed by shifts in red and blue light.

Which discovery by astronomer Vera Rubin helped prove the existence of dark matter?

Galaxies spin faster than they should, based on their visible matter.

Galaxies exist outside of the Milky Way.

Gas giants form farther from the Sun, where temperatures are cooler.

There is a theory that gravity could pull galaxies back together, causing a reverse big bang. Which observation makes this theory less likely than the idea that the universe may continue to expand?

Background radiation is present.

Galaxies exist outside of the Milky Way.

Gas giants form farther from the Sun, where temperatures are cooler.

What would most likely cause the future acceleration of the expansion of the universe?

the continued existence of dark energy

the existence of background radiation

light shifts identified by the Doppler effect

What is the correct order of processes in the accretion of planetesimals?

Atoms and molecules are added to dust grain, masses of matter form around dust grain, and masses of matter collide.

Masses of matter form around dust grain, masses of matter collide, and atoms and molecules are added to dust grain.

Masses of matter collide, masses of matter form around dust grain, and atoms and molecules are added to dust grain.

Masses of matter collide, atoms and molecules are added to dust grain, and masses of matter form around dust grain.

What happens in the process of gravitational condensation?

Solid particles are formed from solar nebula materials.

An object decreases in size due to the collision of materials.

An object increases in size due to the addition of materials.

Gas particles are formed from solar nebula materials.

Which is one piece of information that astronomers use to calculate the age of the universe?

patterns of background radiation

the current motion of inner planets

Expanding Universe

Authored by Anisa Scholes

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the big bang theory, which statement is accurate about how the universe came to be?

It expanded slowly.

It gradually warmed.

Stars and galaxies formed.

Atoms such as hydrogen were destroyed.

Tags

NGSS.HS-ESS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which object(s) formed last in our solar system?

the Sun

the solar nebula

the inner planets

the planetesimals

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What can be observed only by observing its effects on gravity?

dark matter

a solar nebula

gas and dust

a planetesimal

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement describes Earth?

It is an outer planet.

It is a gaseous planet.

It was formed from gas and dust.

It has a thick atmosphere of hydrogen and helium.

Tags

NGSS.HS-ESS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do scientists know about the future of the universe?

what dark matter is made of

why the expansion of the universe is accelerating

that invisible matter must be influencing the rotation of galaxies

that galaxies spin much slower than they should based on visible matter

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is one of Edwin Hubble’s findings that supports the big bang theory?

The universe started at a central point.

Planetesimals formed in debris disks.

Visible matter only makes up about 5% of the universe.

The Milky Way is the only galaxy in the universe.

Tags

NGSS.HS-ESS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement accurately describes the Doppler effect?

It was used by Hubble to measure velocities of galaxies.

It indicates galaxy motion through changes in sound waves.

It indicates a galaxy moving toward Earth through red shift.

It indicates a galaxy moving away from Earth through blue shift.

Tags

NGSS.HS-ESS1-2

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Expanding Universe

According to the big bang theory, which statement is accurate about how the universe came to be?

Which object(s) formed last in our solar system?

What can be observed only by observing its effects on gravity?

Which statement describes Earth?

What do scientists know about the future of the universe?

Which is one of Edwin Hubble’s findings that supports the big bang theory?

Which statement accurately describes the Doppler effect?

Which evidence supports the big bang theory?

About how long ago did our solar system start to form?

Which event led to the formation of our solar system?

Access all questions and much more by creating a free account

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