Welcome to the Asteroids MCQs with Answers. In this post, we are sharing Asteroids Multiple Choice Questions and Answers in Astronomy section for various competitive exams in Pakistan. Each question offers a chance to enhance your knowledge regarding Asteroids online MCQs Test.
Asteroids are primarily found in which region of the solar system?
a) Kuiper Belt
b) Oort Cloud
c) Asteroid Belt
d) Scattered Disc
What are asteroids primarily composed of?
a) Gas and dust
b) Ice and rock
c) Metal and rock
d) Hydrogen and helium
Which is the largest known asteroid in the asteroid belt?
a) Vesta
b) Pallas
c) Ceres
d) Hygiea
Asteroids that share an orbit with a planet are known as what?
a) Meteoroids
b) Trojans
c) Comets
d) Centaurs
Which spacecraft was the first to orbit an asteroid?
a) Dawn
b) Voyager 1
c) New Horizons
d) Galileo
What is the primary difference between an asteroid and a comet?
a) Asteroids are made of metal, comets are made of ice
b) Comets are closer to the Sun than asteroids
c) Asteroids have tails, comets do not
d) Asteroids are larger than comets
What term is used for asteroids that come close to Earth?
a) Near-Earth Objects (NEOs)
b) Distant Objects
c) Trans-Neptunian Objects
d) Minor Planets
Asteroids that pass within the orbit of Earth are part of which group?
a) Kuiper Belt
b) Oort Cloud
c) Apollo asteroids
d) Trojan asteroids
Which asteroid is known for having its own moon?
a) Vesta
b) Ceres
c) Pallas
d) Ida
The asteroid belt is located between which two planets?
a) Earth and Mars
b) Mars and Jupiter
c) Jupiter and Saturn
d) Saturn and Uranus
What shape are most asteroids?
a) Spherical
b) Oval
c) Irregular
d) Cubic
What is a meteoroid?
a) A large asteroid
b) A small asteroid or fragment of an asteroid
c) A comet’s tail
d) A dust particle from space
Which asteroid did the Japanese spacecraft Hayabusa2 visit and return samples from?
a) Ceres
b) Bennu
c) Ryugu
d) Vesta
How do scientists classify asteroids based on their composition?
a) By their orbit
b) By their size
c) By their color
d) By their spectral type
Which type of asteroid is the most common in the asteroid belt?
a) C-type (carbonaceous)
b) S-type (silicaceous)
c) M-type (metallic)
d) D-type (dark)
Which of the following is NOT an asteroid classification?
a) C-type
b) P-type
c) S-type
d) M-type
What is the estimated age of most asteroids?
a) 1 million years
b) 100 million years
c) 4.5 billion years
d) 10 billion years
What is the term for a space rock that survives its journey through the Earth’s atmosphere and lands on Earth?
a) Asteroid
b) Meteoroid
c) Meteor
d) Meteorite
Which asteroid did NASA’s OSIRIS-REx mission study?
a) Ryugu
b) Bennu
c) Ceres
d) Vesta
What is the name given to large asteroids that are over 100 kilometers in diameter?
a) Meteoroids
b) Minor planets
c) Planetesimals
d) Centaurs
What is the difference between an asteroid and a meteoroid?
a) Asteroids are larger
b) Meteoroids orbit planets
c) Meteoroids are made of ice
d) Asteroids have atmospheres
Which asteroid is known as the brightest object in the asteroid belt?
a) Ceres
b) Vesta
c) Pallas
d) Hygiea
What happens to most asteroids when they enter Earth’s atmosphere?
a) They become comets
b) They burn up
c) They grow larger
d) They bounce off
What is the main difference between asteroids and planets?
a) Asteroids are smaller
b) Planets have atmospheres
c) Planets have orbits
d) Asteroids have moons
What is the primary cause of asteroid impacts on Earth?
a) Asteroids’ gravitational pull
b) Planetary collisions
c) Their proximity to Earth’s orbit
d) Solar radiation
How many asteroids are estimated to be in the asteroid belt?
a) Hundreds
b) Thousands
c) Millions
d) Billions
Which type of asteroid is rich in carbon?
a) M-type
b) C-type
c) S-type
d) D-type
Which event 65 million years ago is thought to have been caused by an asteroid impact?
a) The Permian extinction
b) The ice age
c) The dinosaur extinction
d) The volcanic eruption
Where is the Chicxulub crater, believed to be the result of an asteroid impact, located?
a) United States
b) Russia
c) Mexico
d) Canada
Which asteroid is classified as a dwarf planet?
a) Ceres
b) Vesta
c) Pallas
d) Eros
Which asteroid family shares an orbit with Jupiter?
a) Apollo
b) Amor
c) Trojan
d) Aten
What is the main method scientists use to detect asteroids?
a) Space probes
b) Radar
c) Telescopes
d) Satellites
What happens to an asteroid if it gets too close to Jupiter?
a) It breaks apart
b) It accelerates
c) It is ejected from the solar system
d) It becomes a moon
Which of these is NOT a known asteroid type?
a) C-type
b) D-type
c) S-type
d) G-type
What is the key factor that differentiates asteroids from planets?
a) Their distance from the Sun
b) Their lack of an atmosphere
c) Their irregular shape
d) Their size
The largest asteroid impacts on Earth are thought to have caused what?
a) Earthquakes
b) Extinctions
c) Tidal waves
d) New land formations
Which of the following is NOT considered a near-Earth object?
a) 433 Eros
b) 243 Ida
c) 1999 AN10
d) 4179 Toutatis
What does the term “main-belt asteroid” refer to?
a) Asteroids near Earth
b) Asteroids between Mars and Jupiter
c) Asteroids near the Kuiper Belt
d) Asteroids orbiting close to the Sun
Which space mission is designed to prevent potential asteroid impacts on Earth?
a) Cassini
b) OSIRIS-REx
c) DART (Double Asteroid Redirection Test)
d) Dawn
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