Quiz about Structure of the Universe

Question 1

The distance light travels through space in one year

Accepted Answer

light-year

Answer

astro

Answer

void

Answer

orbit

Question 2

Space and all of the matter in it

Accepted Answer

universe

Answer

solar system

Answer

planet

Answer

galaxy

Question 3

Astronomers use the light-year to describe the relationship between objects in space. For example, Proxima Centuari is 4.3 light years away. Which of the following units is most similar to the light-year?

Accepted Answer

kilometer

Answer

gram

Answer

second

Answer

degrees Celsius

Question 4

Which of the following is smaller than a solar system?

Accepted Answer

planet

Answer

universe

Answer

galaxy

Answer

galaxy cluster

Question 5

Which of the following is larger than a galaxy?

Accepted Answer

universe

Answer

planet

Answer

star

Answer

solar system

Question 6

Terrestrial planets have thick gaseous atmospheres

Accepted Answer

False

Answer

True

Question 7

The density of terrestrial planets is greater than the density of gas giant planets

Accepted Answer

True

Answer

False

Question 8

How many star(s) do we have in our solar system?

Accepted Answer

one

Answer

trillions

Answer

billions

Answer

millions

Question 9

The closest star to Earth

Accepted Answer

The sun

Answer

Proxima Centauri

Answer

Betelgeuse

Answer

Barnard's Star

Question 10

Why would it be difficult to travel to Proxima Centauri

Accepted Answer

It is very far away

Answer

It is bright and hot

Answer

We are not exactly sure where it is

Answer

There might not be any planets near it

Question 11

A spherical body that orbits the sun

Accepted Answer

planet

Answer

star

Answer

a galaxy

Answer

a void

Question 12

Area in the universe where little matter exists

Accepted Answer

voids

Answer

galaxy clusters

Answer

a planet

Answer

a galaxy

Question 13

Which term best describes a collection of large and small bodies that orbit our central star, the sun

Accepted Answer

solar system

Answer

planet

Answer

galaxy

Answer

galaxy cluster

Question 14

Which of the following is generally the smallest

Accepted Answer

planet

Answer

stars

Answer

galaxies

Answer

solar system

Question 15

A large collection of stars, gas, and dust that is held together by gravity

Accepted Answer

galaxy

Answer

planet

Answer

solar system

Answer

universe

Question 16

These types of galaxies are shaped like spheres

Accepted Answer

elliptical galaxy

Answer

spiral galaxy

Answer

dwarf galaxy

Answer

universe

Question 17

These types of galaxies are shaped like pinwheels. They have a central bulge from which two or more arms extend.

Accepted Answer

spiral galaxy

Answer

elliptical galaxy

Answer

irregular galaxy

Answer

universe

Question 18

Which statement best describe the density of terrestial planets and gas giants?

Accepted Answer

Terrestial planets are more dense than gas giants

Answer

Terrestial planets are less dense than gas giants

Answer

Terrestial planets and gas giants have similar densities

Answer

It is not possible to know the denisty of planets

Question 19

Which of the following is not released as energy from the sun?

Accepted Answer

oxygen

Answer

wind

Answer

heat

Answer

light

Question 20

Our nearest star neighbor in space, Proxima Centauri, is four light years from Earth. Why will it be difficult to visit?

Accepted Answer

It is too far away

Answer

It is bright and hot

Answer

It may not have planets orbiting it

Answer

It is difficult to know where it is located

Question 21

Which of the following planets is not a terrestrial planet?

Accepted Answer

Jupiter

Answer

Mercury

Answer

Venus

Answer

Mars

Question 22

Which of the following diagrams best describes the structure of the universe?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 23

How can you rearrange the words to match the diagram correctly in terms of sizes in space?

Accepted Answer

Universe in the largest circle, then galaxies, followed by the solar systems in the smallest circle.

Answer

Solar systems in the largest circle, then galaxies, followed by the universe in the smallest circle.

Answer

Galaxies in the largest circle, then universe, followed by the solar systems in the smallest circle.

Answer

The diagram is already correct.

Question 24

Mars is considered a terrestrial planet and Neptune is considered a gas giant planet. Which of the following statements is true?

Accepted Answer

Neptune has rings of rock, ice, and dust and Mars does not

Answer

Mars is less dense than Neptune

Answer

Neptune has a large core for its size compared to Mars

Answer

Neptune is closer to the sun than Mars

Structure of the Universe

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