Universe

Question 1

What is the primary building block of the universe?

Answer 1

Atoms

Question 2

True or False: The universe is static and unchanging.

Answer 2

False

Question 3

Fill in the blank: The universe began with the _______.

Answer 3

Big Bang

Question 4

What are the two main types of matter in the universe?

Answer 4

Baryonic matter and dark matter

Question 5

Multiple Choice: Which of the following is the largest structure in the universe? A) Galaxy B) Star C) Planet D) Galaxy Cluster

Answer 5

D) Galaxy Cluster

Question 6

What is dark energy?

Answer 6

A mysterious force that is causing the accelerated expansion of the universe.

Question 7

What percentage of the universe is made up of dark matter?

Answer 7

Approximately 27%

Question 8

True or False: All stars are made of the same elements.

Answer 8

True

Question 9

What is the observable universe?

Answer 9

The portion of the universe that we can see or detect from Earth.

Question 10

Multiple Choice: Which of the following is responsible for the formation of galaxies? A) Supernovae B) Gravitational forces C) Solar winds D) Cosmic rays

Answer 10

B) Gravitational forces

Question 11

What is a black hole?

Answer 11

A region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Question 12

Fill in the blank: The theory that describes the evolution of the universe is called _______.

Answer 12

Cosmology

Question 13

What is the cosmic microwave background radiation?

Answer 13

The afterglow radiation from the Big Bang, filling the universe.

Question 14

True or False: The universe is expanding.

Answer 14

True

Question 15

What is the significance of the Hubble Space Telescope?

Answer 15

It has provided key insights into the expansion of the universe and the existence of exoplanets.

Question 16

Theory of Johaness Kepler

Answer 16

Planets are moving on elliptical orbits

Question 17

What is the largest planet in our solar system?

Answer 17

Jupiter

Question 18

True or False: A planetoid is larger than a planet.

Answer 18

False

Question 19

Fill in the blank: The four inner planets are also known as the ______ planets.

Answer 19

terrestrial

Question 20

Which planet is known for its prominent ring system?

Answer 20

Saturn

Question 21

What is the primary composition of gas giants?

Answer 21

Hydrogen and Helium

Question 22

Multiple Choice: Which of the following is not a planet? A) Mars B) Pluto C) Sirius D) Venus

Answer 22

C) Sirius

Question 23

What term describes a celestial body that orbits a star and is not a star itself?

Answer 23

Planet

Question 24

True or False: All stars are larger than planets.

Answer 24

False

Question 25

What is the closest star to Earth?

Answer 25

Proxima Centauri

Question 26

Fill in the blank: The classification of celestial bodies includes planets, ______, and stars.

Answer 26

planetoids

Question 27

What is a constellation?

Answer 27

A constellation is a group of stars that form a recognizable pattern in the night sky.

Question 28

True or False: There are 88 officially recognized constellations.

Answer 28

True

Question 29

Fill in the blank: The most famous constellation, often associated with a hunter, is __________.

Answer 29

Orion

Question 30

Which constellation is known as the 'Big Dipper'?

Answer 30

Ursa Major

Question 31

What is the primary purpose of constellations in astronomy?

Answer 31

To help locate and identify stars and celestial objects in the night sky.