Quiz about Expanding Universe

Question 1

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

Accepted Answer

Stars and galaxies formed.

Answer

It expanded slowly.

Answer

It gradually warmed.

Answer

Atoms such as hydrogen were destroyed.

Question 2

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

Accepted Answer

the inner planets

Answer

Answer

the solar nebula

Answer

the planetesimals

Question 3

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

Accepted Answer

dark matter

Answer

a solar nebula

Answer

gas and dust

Answer

a planetesimal

Question 4

Which statement describes Earth?

Accepted Answer

It was formed from gas and dust.

Answer

It is an outer planet.

Answer

It is a gaseous planet.

Answer

It has a thick atmosphere of hydrogen and helium.

Question 5

What do scientists know about the future of the universe?

Accepted Answer

that invisible matter must be influencing the rotation of galaxies

Answer

what dark matter is made of

Answer

why the expansion of the universe is accelerating

Answer

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

Question 6

Which statement accurately describes the Doppler effect?

Accepted Answer

It was used by Hubble to measure velocities of galaxies.

Answer

It indicates galaxy motion through changes in sound waves.

Answer

It indicates a galaxy moving toward Earth through red shift.

Answer

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

Question 7

Which evidence supports the big bang theory?

Accepted Answer

Uniform background radiation is detected in every direction.

Answer

Planetesimals form in debris disks.

Answer

Most galaxies are moving toward us.

Answer

Galaxies spin faster than they should based on visible matter.

Question 8

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

Accepted Answer

About 5 billion years ago

Answer

About 5 million years ago

Answer

About 14 million years ago

Answer

About 14 billion years ago

Question 9

Which event led to the formation of our solar system?

Accepted Answer

A solar nebula collapsed.

Answer

A galaxy broke apart.

Answer

A massive star exploded.

Answer

Dark matter materialized.

Question 10

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

Accepted Answer

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.

Answer

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.

Answer

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

Answer

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.

Question 11

Which statement accurately describes planetesimals?

Accepted Answer

They are the origins of planets.

Answer

They formed from ice and rocks.

Answer

They were created during the big bang.

Answer

They contain 98% of matter in the solar system.

Question 12

Which statement accurately describes the inner planets?

Accepted Answer

The inner planets are also called terrestrial planets.

Answer

Uranus is one of the inner planets.

Answer

The inner planets formed when the solar system cooled.

Answer

The inner planets are larger than the outer planets.

Question 13

Which statement accurately describes the outer planets?

Accepted Answer

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

Answer

Pluto is one of the outer planets.

Answer

The outer planets are also called rocky planets.

Answer

The outer planets have thin atmospheres.

Question 14

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

Accepted Answer

Pluto and comets

Answer

comets and Neptune

Answer

Neptune and a solar nebula

Answer

a solar nebula and planetesimals

Question 15

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

Accepted Answer

The universe may continue to expand.

Answer

The universe could remain exactly as it is today.

Answer

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

Answer

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

Question 16

Which correctly lists the two elements that make up the empty space in the universe?

Accepted Answer

dark matter and dark energy

Answer

ice and debris

Answer

debris and dark matter

Answer

dark energy and dust

Question 17

Which statement accurately describes dark matter?

Accepted Answer

It does not emit electromagnetic radiation.

Answer

It is the same as dark energy.

Answer

It is well understood by scientists.

Answer

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

Question 18

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

Accepted Answer

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

Answer

Galaxies exist outside of the Milky Way.

Answer

The expansion of the universe is accelerating.

Answer

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

Question 19

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?

Accepted Answer

The expansion of the universe is accelerating.

Answer

Background radiation is present.

Answer

Galaxies exist outside of the Milky Way.

Answer

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

Question 20

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

Accepted Answer

the continued existence of dark energy

Answer

radiation from the Sun

Answer

the existence of background radiation

Answer

light shifts identified by the Doppler effect

Question 21

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

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 22

What happens in the process of gravitational condensation?

Accepted Answer

Solid particles are formed from solar nebula materials.

Answer

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

Answer

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

Answer

Gas particles are formed from solar nebula materials.

Question 23

What was discovered in 1965 and is believed to be leftover thermal energy from the big bang?

Accepted Answer

background radiation

Answer

<p>red shift</p>

Answer

the Eagle Nebula

Answer

the Doppler effect

Question 24

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

Accepted Answer

patterns of background radiation

Answer

dark energy

Answer

the age of rocks on Earth

Answer

the current motion of inner planets

Expanding Universe

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science