Our team has conducted extensive research to compile a set of Introduction To Astronomy MCQs. We encourage you to test your Introduction To Astronomy knowledge by answering these 90+ multiple-choice questions provided below.
Simply scroll down to begin!
A. Protostar.
B. Supernova remnant
C. Planetary nebula.
D. Red supergiant.
A. Increases; apparent recessional velocity
B. The greater the distance to a galaxy, the greater is the galaxy's redshift.
C. The number of logs used.
D. Emit large amounts of energy at all wavelengths.
A. About the width of your fist held at arm's length
B. About the width of a finger held at arm's length
C. Less than the thickness of a human hair held at arm's length
D. Slightly more than the width of a basketball held at arm's length
A. It must rotate faster
B. What is considered High mass
C. Best way to detect a Black hole:
D. When two galaxies collide they tend to
A. Only high-mass stars do fusion by the CNO cycle
B. Carbon fusion can occur only in the stars known as carbon stars
C. The cores of low-mass stars never get hot enough for carbon fusion
D. The cores of low-mass stars never contain significant amounts of carbon
A. Hundreds of millions of years.
B. 1 billion solar masses
C. Globular galaxies
D. 100 billion
A. Spacetime rapidly expanded during a brief period of inflation.
B. Most matter in the early universe was annihilated by antimatter.
C. By the time the universe was about 3 minutes old
D. Fainter and has most of its photons at longer wavelengths
A. It is now 1 billion light-years away.
B. It was 1 billion light-years away when the light left the galaxy.
C. It is 400 million years old.
D. Its light traveled through space for 1 billion years to reach us.
A. The Sun
B. Europa
C. Titan
D. Methane
A. Active galactic nuclei.
B. 1 billion solar masses
C. Globular galaxies
D. The cosmological horizon
A. A core layer of molten, convecting material and sufficiently rapid rotation
B. A layer of relatively strong, rigid rock, encompassing the crust and part of the mantle
C. A place where a seafloor plate is sliding under a continental plate
D. A global
A. All of the above
B. Feelings of euphoria
C. Help them talk through their issues
D. A suicide cluster occurs when multiple people attempt suicide at one time.
A. X rays
B. Visible light
C. Infrared light
D. Radio waves
A. Ounger it is.
B. Closer it is to us.
C. Faster it's approaching us.
D. Farther it is from us
A. A cluster of galaxies
B. About the size of our solar system.
C. The presence of globular clusters in the halos of galaxies
D. Redder and more luminous
A. As massive as the Sun but only about as large in size as the Earth.
B. An object with gravity so strong that not even light can escape
C. Supernovas of very massive stars in distant galaxies
D. Both involve explosions on the surface of stellar corpse.
A. The gravitational lens effect
B. Seyfert
C. Emit a very large amount of energy per second
D. Most; a few percent
E. Synchrotron radiation
A. The more distant a galaxy, the faster it is moving away from us.
B. A type of luminous star that makes an excellent standard candle.
C. Moving away from Earth and are farther from Earth than galaxies with lower speeds
D. Its light traveled through space for 1 billion years to reach us
A. Protostar, main-sequence star, red giant, planetary nebula, white dwarf
B. Much less than half as long as the Sun
C. The core shrinks while the rest of the star expands.
D. Hydrogen fusion in a shell surrounding the central core
A. Impact cratering, volcanisms, tectonics, and erosion.
B. Seafloor crust is thinner, younger, and higher in density.
C. A greenhouse effect that keeps getting stronger until all of a planet's greenhouse gases are in its atmosphere
D. A layer of relatively strong, rigid rock, encompassing the crust and part of the mantle
A. The astrometric technique of planet detection works best for
B. Their light is overwhelmed by the light from their star.
C. The amount and frequency of the star's motion are both higher.
D. Only a small fraction of stars that have planets
A. Resolution
B. Improve the angular resolution of radio telescopes
C. They have poorer angular resolution than a refractor
D. Increase their angular resolution and collect the very weak radio photons.
A. Metals sunk to the centers a long time ago when the interiors were molten throughout
B. The terrestrial worlds as a whole are made mostly of metal
C. The core contained lots of radioactive elements that decayed into metals
D. Over billions of years, convection gradually brought dense metals downward to the core
A. Are uniform throughout all layers of Earth
B. Decrease at a constant rate with depth
C. Increase at a constant rate with depth
D. Generally increase with depth, but occasionally make abrupt jumps
A. Diameter
B. Light pollution
C. Reflecting
D. Focus
A. Jupiter
B. Mars
C. Venus
D. Mercury
A. Spectral types and distance from Earth.
B. Absolute magnitudes and luminosities.
C. Luminosities and distance from Earth.
D. Orbital period and average orbital distance.
A. Pacific ocean
B. James Cook
C. Isostatic adjustment
D. None of these
A. Pea
B. A large member of the Kuiper belt
C. Being a fragment from Comet Halley
D. Generally away from the Sun
E. Evidence of recent geological activity
A. May be either a neutron star or a black hole
B. Iron cannot release energy either by fission or fusion.
C. Its mass
D. All of this
A. Have a lower abundance of heavy elements
B. Have a greater abundance of heavy elements
C. Become denser and hotter
D. Become denser and have a greater abundance of heavy elements
A. They contain more hot young stars than other parts of the disk
B. The stars that formed first could orbit the center of the galaxy in any direction at any inclination.
C. It is by far the brightest source of visible light lying in the direction of the galactic center.
D. None of these
A. Circumference
B. Radius
C. Density
D. Diameter
A. Visible light
B. Light pollution
C. Ultraviolet light
D. Infrared light
A. Galaxies are transparent to visible light.
B. We are really smart astronomers.
C. We can watch as they interact in real time.
D. The farther away we look, the further back in time we see.
A. Monitoring stars for slight dimming that might occur as unseen planets pass in front of them
B. The size of the Doppler shift that we detect depends on the tilt of a planet's orbit.
C. A planet that is Jupiter-like in size but orbits very close to its star
D. None of these
A. Infrared
B. X-ray
C. Radio
D. Ultraviolet
A. Top right
B. Earth's orbit
C. Moon's orbit
D. Earth's axis
A. The energy generated by fusion and the product of (mass lost through fusion) x c2
B. The energy reaching the Sun's photosphere and the energy radiated from the photosphere into space
C. The energy released in the core by fusion and the energy radiated from the Sun's surface into space
D. None of these
A. Ordinary stars
B. We don't know
C. In x rays.
D. In space
A. Whether a star is moving toward or away from earth
B. Refracting
C. Hydrogen from which stars are formed
D. Convection and radiation
E. Cooler than the rest of the surface
A. The sun
B. Meteoroids
C. The Earth
D. Water
A. The animation shows that any location on Earth
B. Passes through both tidal bulges
C. The places where the tides are smallest
D. Nonr of this
A. Almost entirely from their interiors
B. Almost entirely from the Sun
C. Both the Sun and their interiors, in roughly equal proportions
D. Tidal heating
A. Much larger
B. Much brighter
C. A prominence
D. Much hotter
A. A diffraction grating.
B. Adaptive optics.
C. A telescope.
D. A flat glass mirror.
A. Photometer
B. Charge-coupled device
C. Spectrograph
A. Discover the laws of planetary motion
B. Discover the law of gravity
C. Create a detailed model of our solar system with the Sun rather than Earth at the center
D. Prove that the Earth is not the center of the universe
A. Subatomic particles are packed as tightly as the laws of quantum mechanics allow
B. The merger of two black holes
C. Electron dengeneracy pressure
D. All of this
A. As a main sequence star
B. Much less than half as long as the Sun
C. In hydrostatic equilibrium
D. Hydrogen burning shell expands