Astronomy Introduction Trivia
Here In this quiz, you will get huge questions on Astronomy science! Let's play and learn more about it!
- 1.
When a solid body is heated the result is a(n)
- A.
Continuous specturm
- B.
Emission line
- C.
Emission spectrum
- D.
Absorption line
- E.
Absorption spectrum
Correct Answer
A. Continuous specturm -
- 2.
Our Sun is of spectral type
- A.
B
- B.
G
- C.
K
- D.
M
- E.
O
Correct Answer
B. G -
- 3.
The study of the positions of stars and their motions across the sky is
- A.
Astrometry
- B.
Color indexing
- C.
Spectroscopic parallax
- D.
Speckle interferometry
- E.
Trigonometric parallax
Correct Answer
A. Astrometry -
- 4.
The magnitude a star would have if it were at a standard distance of 10 parsecs is its
- A.
Absolute magnitude
- B.
Apparent magnitude
- C.
Standard magnitude
- D.
Luminosity
- E.
Apparent luminosity
Correct Answer
A. Absolute magnitude -
- 5.
A temperature-luminosity diagram of stars usually includes a diagonal band called the
- A.
H-R line
- B.
Main line
- C.
Main sequence
- D.
Color index
- E.
Star diagonal
Correct Answer
C. Main sequence -
- 6.
The speed of an object in the direction toward or away from an observer is its
- A.
Relative velocity
- B.
Proper motion
- C.
Radial velocity
- D.
Space velocity
- E.
Transverse velocity
Correct Answer
C. Radial velocity -
- 7.
A star that appears double when observed directly, and is held together by mutual gravitation is called a(n)
- A.
Astrometric binary
- B.
Optical double
- C.
Eclipsing binary
- D.
Spectroscopic binary
- E.
Visual binary
Correct Answer
E. Visual binary -
- 8.
The main value in the study of binary stars is the ability it gives us to determine stellar
- A.
Colors
- B.
Masses
- C.
Periods
- D.
Sizes
- E.
Ages
Correct Answer
B. Masses -
- 9.
The period-luminosity relation applies to
- A.
Cepheid variables
- B.
Eclipsing binaries
- C.
Irregular variables
- D.
Mira variables
- E.
RR Lyrae variables
Correct Answer
A. Cepheid variables -
- 10.
Star clusters with irregular shapes, and containing relatively young stars, are called
- A.
Globular clusters
- B.
Open clusters
- C.
Star clusters
- D.
New Population clusters
- E.
Galaxies
Correct Answer
B. Open clusters -
- 11.
One class of low-mass, erratically variable pre-main-sequence stars is called
- A.
Cepheids
- B.
Mira variables
- C.
RR Lyrae variables
- D.
T Tauri stars
- E.
R. Monocerotis stars
Correct Answer
D. T Tauri stars -
- 12.
A stellar-sized hot body that derives its energy from free-falling gravitational collapse is a
- A.
Brown dwarf
- B.
Circumstellar disk
- C.
Main-sequence star
- D.
Protostar
- E.
White dwarf
Correct Answer
D. Protostar -
- 13.
The fusion process which produces energy in most stars forms helium from the nuclei of
- A.
Carbon
- B.
Hydrogen
- C.
Iron
- D.
Oxygen
- E.
Nitrogen
Correct Answer
B. Hydrogen -
- 14.
When an atom loses an electron, it becomes a(n)
- A.
Element
- B.
Ion
- C.
Isotope
- D.
Nucleus
- E.
Plasma
Correct Answer
B. Ion -
- 15.
The number of protons in the nucleus of an atom of sub 6 C^14 is
- A.
2
- B.
6
- C.
8
- D.
14
- E.
20
Correct Answer
B. 6 -
- 16.
If normal carbon is sub 6 C^14, the number of electrons in singly-ionized carbon will be
- A.
4
- B.
5
- C.
6
- D.
7
- E.
8
Correct Answer
B. 5 -
- 17.
The process of building heavier atoms from lighter ones is called
- A.
Atom building
- B.
Ionization
- C.
Isotope production
- D.
Nucleosynthesis
- E.
Nuclear mitosis
Correct Answer
D. Nucleosynthesis -
- 18.
The nuclei of atoms are held together by the
- A.
Charge force
- B.
Electromagnetic force
- C.
Gravitational force
- D.
Strong force
- E.
Weak force
Correct Answer
D. Strong force -
- 19.
Compared with low-mass stars, high-mass stars have main-sequence lifetimes that are
- A.
Shorter
- B.
Longer
- C.
About the same
- D.
Infinite
- E.
The low-mass lifetime to the fourth power
Correct Answer
A. Shorter -
- 20.
The spectrum of a brown dwarf can show strong
- A.
Helium and hydrogen
- B.
Carbon and uranium
- C.
Water vapor and DNA
- D.
Methane and water vapor
- E.
Silicon and iron
Correct Answer
D. Methane and water vapor -
- 21.
After a star enters its red giant phase its core will heat up enough for the triple-alpha process to begin to produce
- A.
Carbon
- B.
Helium
- C.
Hydrogen
- D.
Nitrogen
- E.
Oxygen
Correct Answer
A. Carbon -
- 22.
Stars retaining less than 1.4 solar masses after their unstable phase will become
- A.
Neutron stars
- B.
Protostars
- C.
Red giants
- D.
Variable
- E.
White dwarfs
Correct Answer
E. White dwarfs -
- 23.
A nova involves material from a companion star falling on a
- A.
Dust cloud
- B.
Main-sequence star
- C.
Protostar
- D.
Red giant
- E.
White dwarf
Correct Answer
E. White dwarf -
- 24.
As a white dwarf ages it will
- A.
Get bluer
- B.
Cool
- C.
Contain more iron
- D.
Heat up and expand
- E.
Spontaneously explode
Correct Answer
B. Cool -
- 25.
A very massive star at the end of its main-sequence life becomes a
- A.
Red supergiant
- B.
Red variable
- C.
White dwarf
- D.
White main-sequence
- E.
White giant
Correct Answer
A. Red supergiant -
- 26.
When the core of a massive star collapses, rebounds, and explodes into a supernova, it picks up much of its energy from the outflow of
- A.
Ions
- B.
Neutral atoms
- C.
Neutrinos
- D.
Photons
- E.
Positions
Correct Answer
C. Neutrinos -
- 27.
Protons and other atomic nuclei moving through space at high velocities are called
- A.
Cosmic rays
- B.
Extrasolar radiation
- C.
Nuclear radiation
- D.
Supernova remnants
- E.
X-rays
Correct Answer
A. Cosmic rays -
- 28.
The progenitor of Supernova 1987A was a(n)
- A.
Main sequence O star
- B.
Blue supergiant
- C.
Brown dwarf in a binary system
- D.
M star
- E.
Planetary nebula
Correct Answer
B. Blue supergiant -
- 29.
In 1967, Jocelyn Bell Burnell discovered a new type of celestial object called a
- A.
Binary star
- B.
Neutron star
- C.
Pulsar
- D.
Radio star
- E.
Quasar
Correct Answer
C. Pulsar -
- 30.
The model that describes pulsars as beams of radio waves from rotating neutron stars is the
- A.
Flashlight model
- B.
Lighthouse model
- C.
Neutron pulsed model
- D.
LED model
- E.
IPod model
Correct Answer
B. Lighthouse model -
- 31.
After a supernova, if the stellar core retains more than 2 or 3 solar masses, the result will be a
- A.
Black dwarf
- B.
Black hole
- C.
Neutron star
- D.
Supermassive star
- E.
White dwarf
Correct Answer
B. Black hole -
- 32.
The existence of black holes is predicted by
- A.
The General Theory of Relativity
- B.
Keplar's laws
- C.
Newton's third law
- D.
Quantum mechanics
Correct Answer
A. The General Theory of Relativity -
- 33.
The spherical surface around a collapsed star in which light can orbit is the
- A.
Ergosphere
- B.
Event horizon
- C.
Exit cone
- D.
Photon sphere
- E.
Schwarzschild radius
Correct Answer
D. Photon sphere -
- 34.
The region around a black hole from which energy can theoretically be extracted is the
- A.
Ergosphere
- B.
Event horizon
- C.
Exit cone
- D.
Photon sphere
- E.
Schwarzchild radius
Correct Answer
A. Ergosphere -
- 35.
The imaginary boundary around a rotating black hole at which no particles can remain at rest is the
- A.
Ergosphere
- B.
Event horizon
- C.
Schwarzschild radius
- D.
Singularity
- E.
Stationary limit
Correct Answer
E. Stationary limit -
- 36.
Matter from a companion star in orbit around a black hole forms a(n)
- A.
Ergosphere
- B.
Accretion disk
- C.
Event horizon
- D.
Singularity
- E.
Bipolar flow
Correct Answer
B. Accretion disk -
- 37.
An early candidate object possibly containing a black hole was
- A.
Barnard's star
- B.
Sirius
- C.
Polaris
- D.
Cygnus X-1
- E.
Subaru
Correct Answer
D. Cygnus X-1 -
- 38.
When a black hole rotates so fast its event horizon vanishes it produces a(n)
- A.
Ergosphere
- B.
Naked singularity
- C.
Photon sphere
- D.
Singularity
- E.
X-ray pulse
Correct Answer
B. Naked singularity -
- 39.
Supermassive black holes probably exist in
- A.
The outer solar system
- B.
Pulars
- C.
Novae
- D.
The centers of most galaxies
- E.
The halo of the Milky Way Galaxy
Correct Answer
D. The centers of most galaxies -
- 40.
The presence of a black hole in a galaxy core can be inferred from
- A.
The mass of the galaxy
- B.
The velocities of stars near the core
- C.
The color index of the galaxy
- D.
The distance of the galaxy from the Milky Way
Correct Answer
B. The velocities of stars near the core -
- 41.
A cloud of dust and gas that scatters the light of nearby stars is a(n)
- A.
Dark nebula
- B.
Emission nebula
- C.
Nebula
- D.
Reflection nebula
- E.
Spiral nebula
Correct Answer
D. Reflection nebula -
- 42.
While studying the distribution of globular clusters, Harlow Shapley discovered that we are not in the
- A.
Galactic disk
- B.
Center of the Galaxy
- C.
Galactic corona
- D.
Galactic halo
- E.
Milky Way Galaxy
Correct Answer
B. Center of the Galaxy -
- 43.
The "spiral arms" of the Galaxy are embedded in the
- A.
Disk
- B.
Galactic corona
- C.
Halo
- D.
Nuclear bulge
- E.
Galactic nucleus
Correct Answer
A. Disk -
- 44.
Stars in the galactic halo are generally
- A.
Very old
- B.
Very young
- C.
Very massive
- D.
Accompanied by clouds of gas and dust
- E.
Especially dense
Correct Answer
A. Very old -
- 45.
At which wavelength or energy do we see less radiation toward the center of our Galaxy than we do farther out?
- A.
21cm
- B.
2.6mm
- C.
2.2mm
- D.
110 MeV
- E.
6563 Å
Correct Answer
A. 21cm -
- 46.
The hydrogen in an H I region is predominantly
- A.
Ionized
- B.
Molecular
- C.
Hot
- D.
Within compounds
- E.
Neutral
Correct Answer
E. Neutral -
- 47.
The 21-cm line, widely used by radio astronomers, comes from
- A.
Ammonia (NH3) molecules
- B.
Synchrotron radiation
- C.
The hydrogen (H) spin-flip transition
- D.
Hydroxyl (OH) molecules
- E.
Neutrino production
Correct Answer
C. The hydrogen (H) spin-flip transition -
- 48.
A heavily-studied giant molecular cloud is in
- A.
Ursa Major
- B.
Orion
- C.
Our solar system
- D.
A distant quasar
- E.
Saturn's rings
Correct Answer
B. Orion -
- 49.
Which of the following has not been detected in interstellar space?
- A.
DNA
- B.
Water
- C.
Hydrogen
- D.
Ammonia
- E.
Dust
Correct Answer
A. DNA -
- 50.
The gamma-ray burst sources appear to be located in or near
- A.
The plane of the Milky Way
- B.
Star-forming regions of distant galaxies
- C.
The nucleus of the Milky Way
- D.
Old globular clusters in nearby galaxies
- E.
The Andromeda Galaxy
Correct Answer
B. Star-forming regions of distant galaxies -
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Current Version
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May 01, 2017Quiz Edited by
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Aug 05, 2010Quiz Created by
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