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Asteroids MCQs with Answers

Asteroids MCQs

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

Answer
c) Asteroid Belt

What are asteroids primarily composed of?
a) Gas and dust
b) Ice and rock
c) Metal and rock
d) Hydrogen and helium

Answer
c) Metal and rock

Which is the largest known asteroid in the asteroid belt?
a) Vesta
b) Pallas
c) Ceres
d) Hygiea

Answer
c) Ceres

Asteroids that share an orbit with a planet are known as what?
a) Meteoroids
b) Trojans
c) Comets
d) Centaurs

Answer
b) Trojans

Which spacecraft was the first to orbit an asteroid?
a) Dawn
b) Voyager 1
c) New Horizons
d) Galileo

Answer
a) Dawn

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

Answer
a) Asteroids are made of metal, comets are made of ice

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

Answer
a) Near-Earth Objects (NEOs)

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

Answer
c) Apollo asteroids

Which asteroid is known for having its own moon?
a) Vesta
b) Ceres
c) Pallas
d) Ida

Answer
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

Answer
b) Mars and Jupiter

What shape are most asteroids?
a) Spherical
b) Oval
c) Irregular
d) Cubic

Answer
c) Irregular

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

Answer
b) A small asteroid or fragment of an asteroid

Which asteroid did the Japanese spacecraft Hayabusa2 visit and return samples from?
a) Ceres
b) Bennu
c) Ryugu
d) Vesta

Answer
c) Ryugu

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

Answer
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)

Answer
a) C-type (carbonaceous)

Which of the following is NOT an asteroid classification?
a) C-type
b) P-type
c) S-type
d) M-type

Answer
b) P-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

Answer
c) 4.5 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

Answer
d) Meteorite

Which asteroid did NASA’s OSIRIS-REx mission study?
a) Ryugu
b) Bennu
c) Ceres
d) Vesta

Answer
b) Bennu

What is the name given to large asteroids that are over 100 kilometers in diameter?
a) Meteoroids
b) Minor planets
c) Planetesimals
d) Centaurs

Answer
b) Minor planets

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

Answer
a) Asteroids are larger

Which asteroid is known as the brightest object in the asteroid belt?
a) Ceres
b) Vesta
c) Pallas
d) Hygiea

Answer
b) Vesta

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

Answer
b) They burn up

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

Answer
a) Asteroids are smaller

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

Answer
c) Their proximity to Earth’s orbit

How many asteroids are estimated to be in the asteroid belt?
a) Hundreds
b) Thousands
c) Millions
d) Billions

Answer
c) Millions

Which type of asteroid is rich in carbon?
a) M-type
b) C-type
c) S-type
d) D-type

Answer
b) C-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

Answer
c) The dinosaur extinction

Where is the Chicxulub crater, believed to be the result of an asteroid impact, located?
a) United States
b) Russia
c) Mexico
d) Canada

Answer
c) Mexico

Which asteroid is classified as a dwarf planet?
a) Ceres
b) Vesta
c) Pallas
d) Eros

Answer
a) Ceres

Which asteroid family shares an orbit with Jupiter?
a) Apollo
b) Amor
c) Trojan
d) Aten

Answer
c) Trojan

What is the main method scientists use to detect asteroids?
a) Space probes
b) Radar
c) Telescopes
d) Satellites

Answer
c) Telescopes

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

Answer
a) It breaks apart

Which of these is NOT a known asteroid type?
a) C-type
b) D-type
c) S-type
d) G-type

Answer
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

Answer
c) Their irregular shape

The largest asteroid impacts on Earth are thought to have caused what?
a) Earthquakes
b) Extinctions
c) Tidal waves
d) New land formations

Answer
b) Extinctions

Which of the following is NOT considered a near-Earth object?
a) 433 Eros
b) 243 Ida
c) 1999 AN10
d) 4179 Toutatis

Answer
b) 243 Ida

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

Answer
b) Asteroids between Mars and Jupiter

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

Answer
c) DART (Double Asteroid Redirection Test)

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See Also  Kuiper Belt and Oort Cloud MCQs with Answers
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