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Astronomical Phenomena : Space
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Practice Test
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Question 1 of 31
What is the term for the explosion of a star at the end of its life cycle?
Choose 1 answer
Supernova
Pulsar
Quasar
Neutron star
Question 2 of 31
What is the closest star to Earth after the Sun?
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Sirius
Alpha Centauri
Proxima Centauri
Betelgeuse
Question 3 of 31
What is the name of the galaxy that contains our Solar System?
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Andromeda Galaxy
Milky Way Galaxy
Whirlpool Galaxy
Triangulum Galaxy
Question 4 of 31
What is the term for the apparent backward motion of planets as seen from Earth?
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Retrograde motion
Prograde motion
Epicyclic motion
Heliocentric motion
Question 5 of 31
What is a pulsar?
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A rapidly rotating neutron star
A type of black hole
A planet orbiting a red dwarf
A type of comet
Question 6 of 31
What is the name of the first man-made satellite to orbit the Earth?
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Sputnik 1
Voyager 1
Apollo 11
Hubble Space Telescope
Question 7 of 31
Which planet is known for having the Great Red Spot, a giant storm?
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Mars
Saturn
Jupiter
Neptune
Question 8 of 31
What is a solar eclipse?
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Earth passing between the Sun and the Moon
Moon passing between the Sun and Earth
Sun passing between Earth and Mars
Moon blocking light from the Earth
Question 9 of 31
What phenomenon causes the Northern and Southern Lights (Auroras)?
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Solar wind interacting with Earth's magnetic field
Meteor showers
Atmospheric pressure changes
Refraction of sunlight through ice crystals
Question 10 of 31
Which planet in our solar system has the highest number of moons?
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Saturn
Jupiter
Mars
Neptune
Question 11 of 31
What is the term for a small solar system body made of ice and dust that develops a tail when near the Sun?
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Comet
Asteroid
Meteor
Meteorite
Question 12 of 31
Which planet is known as the 'Evening Star' due to its bright appearance in the night sky?
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Mars
Venus
Mercury
Saturn
Question 13 of 31
What is the event called when the Moon passes directly into Earth's shadow?
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Solar eclipse
Lunar eclipse
Blood moon
Blue moon
Question 14 of 31
What is the cosmic microwave background radiation?
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Radiation left over from the Big Bang
Solar radiation
Galactic noise
Radiation from black holes
Question 15 of 31
Which planet has the shortest day in the Solar System, completing one rotation in about 10 hours?
Choose 1 answer
Earth
Jupiter
Mars
Neptune
Question 16 of 31
What is the name of the boundary around a black hole beyond which nothing can escape?
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Event horizon
Singularity
Schwarzschild radius
Photon sphere
Question 17 of 31
Which phenomenon explains the redshift of distant galaxies, indicating that the universe is expanding?
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Doppler effect
Cosmic inflation
General relativity
Big Bang
Question 18 of 31
What is the largest planet in our Solar System?
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Earth
Saturn
Jupiter
Neptune
Question 19 of 31
What is the Oort Cloud?
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A cloud of gas surrounding Jupiter
A region of icy bodies surrounding the Solar System
A collection of stars near the Milky Way's core
A spiral arm of the Milky Way
Question 20 of 31
Which of the following is NOT a type of galaxy?
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Elliptical
Spiral
Irregular
Planetary
Question 21 of 31
What is the term for a group of stars that are gravitationally bound and orbit a common center?
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Star cluster
Galaxy
Nebula
Constellation
Question 22 of 31
What type of galaxy is characterized by a central bulge and spiral arms extending outward?
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Elliptical galaxy
Irregular galaxy
Spiral galaxy
Lenticular galaxy
Question 23 of 31
What is the phenomenon where light bends around a massive object due to gravity?
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Gravitational lensing
Redshift
Doppler effect
Cosmic inflation
Question 24 of 31
What is the name of the boundary of a black hole where the escape velocity equals the speed of light?
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Event horizon
Schwarzschild radius
Singularity
Accretion disk
Question 25 of 31
What celestial object is known for having a surface with extreme temperatures and is often classified as a failed star?
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Brown dwarf
Neutron star
White dwarf
Pulsar
Question 26 of 31
Which planet in our Solar System has a rotation axis tilted at an extreme angle, causing extreme seasonal variations?
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Mars
Uranus
Saturn
Neptune
Question 27 of 31
What is the name of the region in space where stars are born?
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Nebula
Quasar
Galaxy
Supernova remnant
Question 28 of 31
Which type of star is characterized by a very high temperature and density, often found in binary star systems?
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White dwarf
Red giant
Neutron star
Main sequence star
Question 29 of 31
What is the name of the hypothetical boundary beyond which the gravitational pull of a black hole becomes so strong that escape is impossible?
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Event horizon
Photon sphere
Schwarzschild radius
Accretion disk
Question 30 of 31
What is the term for a star system consisting of two stars orbiting a common center of mass?
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Binary star system
Triple star system
Star cluster
Galaxy
Question 31 of 31
What is the name of the brightest star in the night sky, located in the constellation Canis Major?
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Sirius
Betelgeuse
Rigel
Polaris
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