Astronomy Test: Can You Pass?
Astronomy is a natural science, and it's applies maths, physics, chemistry and geography, Let's start and know more about it!
- 1.
The basic unit of length in the metric system is the
- A.
Micron
- B.
Meter
- C.
Mile
- D.
Kilometer
Correct Answer
B. Meter -
- 2.
Which of the following numbers has the same meaning as 8670
- A.
8.67 x 10 ^ 3
- B.
8.67 x 10 ^ 2
- C.
8.67 x 10 ^ 1
- D.
0.867 x 10 ^ 3
Correct Answer
A. 8.67 x 10 ^ 3 -
- 3.
The distance traveled by light or by an object is equal to speed times
- A.
Frequency
- B.
Meters
- C.
Mass
- D.
Time
Correct Answer
D. Time -
- 4.
The procedure of writing numbers as a decimal value between 1 and 10 times 10 raised toa n integer power (e.g., 2.4 x 10 ^4) is called
- A.
The scientific method
- B.
Mathematical precision
- C.
Scientific notation
- D.
Astronomical designation
Correct Answer
C. Scientific notation -
- 5.
A light-year is defined as the
- A.
Speed of light in a vacuum
- B.
Average distance from the Earth to the Sun
- C.
Length of the Solar Year
- D.
Distance light travels in one year
Correct Answer
D. Distance light travels in one year -
- 6.
Which unit of measure, often used by astronomers, is not a preferred SI unit of combination?
- A.
Meter
- B.
Second
- C.
Kg/m^3
- D.
Km/s
- E.
Angstrom
Correct Answer
E. Angstrom -
- 7.
In space light travels about
- A.
3 m/s
- B.
300 m/s
- C.
300 km/s
- D.
300,000 km/s
Correct Answer
D. 300,000 km/s -
- 8.
The process of breaking light down into its component colors creates a(n)
- A.
Image
- B.
Hologram
- C.
Spectrum
- D.
Pulse
Correct Answer
C. Spectrum -
- 9.
Ancient astronomers divided the sky into regions containing distinct groups of stars called
- A.
Clusters
- B.
Coordinates
- C.
Constellations
- D.
Galaxies
- E.
Nebula
Correct Answer
C. Constellations -
- 10.
Scientific results must be
- A.
Hyptothetical
- B.
Reproducible
- C.
Controversial
- D.
Believed by at least 50% of scientists
Correct Answer
B. Reproducible -
- 11.
The Earth's atmosphere shields us from most kinds of electromagnetic radiation. The exceptions are
- A.
Visible light and radio waves.
- B.
X-rays and ultraviolet radiation.
- C.
Only visible light frequencies.
- D.
X-rays and gamma rays
- E.
X-rays and radio waves.
Correct Answer
A. Visible light and radio waves. -
- 12.
Compared with visible-light photons, a photon of radio waves has
- A.
Less energy.
- B.
More energy
- C.
The same energy
- D.
Redder energy
- E.
AM energy.
Correct Answer
A. Less energy. -
- 13.
The type of electromagnetic radiation with a wavelength just longer than that of red light is
- A.
Radio waves.
- B.
X-rays.
- C.
Infrared radiation.
- D.
Gamma rays.
- E.
Ultraviolet radiation.
Correct Answer
C. Infrared radiation. -
- 14.
The rule describing the relationship between the temperature of a material and the wavelength of its peak emittedradiation is
- A.
The blackbody rule.
- B.
The quantum theory.
- C.
Planck's law.
- D.
The Stefan-Boltzmann law.
- E.
Wien's law.
Correct Answer
E. Wien's law. -
- 15.
The rule describing the relationship between the total radiant energy emitted by a blackbody to its temperature is
- A.
The blackbody rule.
- B.
The quantum theory.
- C.
Planck's law.
- D.
The Stefan-Boltzmann law.
- E.
The Wien displacement law.
Correct Answer
D. The Stefan-Boltzmann law. -
- 16.
The atomic model that places electrons in definite orbits around the nucleus but allows only certain orbits to exist isthe
- A.
Bohr model.
- B.
Einstein model.
- C.
Feynman model.
- D.
Rutherford model.
- E.
Thomson model.
Correct Answer
A. Bohr model. -
- 17.
If electrons are or removed from a neutral atom the atom is said to be
- A.
Nuclear.
- B.
Ionized.
- C.
Doubly neutral.
- D.
Electronic.
- E.
A proto-atom.
Correct Answer
B. Ionized. -
- 18.
The lowest possible energy state of an atom is called the
- A.
Excited state.
- B.
Ground state.
- C.
Neutral state.
- D.
Photon level.
- E.
Balmer level.
Correct Answer
B. Ground state. -
- 19.
When a gas removes energy at a particular wavelength from radiation passing through it, it creates a(n)
- A.
Continuous spectrum.
- B.
Emission line.
- C.
Stellar spectrum.
- D.
Absorption line.
- E.
Black hole.
Correct Answer
D. Absorption line. -
- 20.
In a spectrum, bright lines that appear at wavelengths where there is more radiation than at neighboring wavelengthsare called
- A.
Absorption lines.
- B.
Emission lines.
- C.
Fraunhofer lines.
- D.
Continuum lines
- E.
Stellar lines.
Correct Answer
B. Emission lines. -
- 21.
A curved lens or mirror can form an image by bringing light to a(n)
- A.
Aberration.
- B.
Focus.
- C.
Resolution.
- D.
Divergence.
- E.
Ray.
Correct Answer
B. Focus. -
- 22.
A reflecting telescope that uses a secondary mirror to reflect light to the side of the telescope is called a(n)
- A.
Newtonian.
- B.
Cassegrain.
- C.
Schmidt.
- D.
Gregorian.
- E.
Halleyan.
Correct Answer
A. Newtonian. -
- 23.
All other things being equal, and ignoring atmospheric effects, a reflecting telescope with a large objective mirror willhave, compared with a telescope with a smaller mirror,
- A.
Better light-gathering power only
- B.
Better resolution only.
- C.
Better light-gathering power and better resolution.
- D.
Better light-gathering power but poorer resolution.
- E.
Better infrared sensitivity.
Correct Answer
C. Better light-gathering power and better resolution. -
- 24.
Today, sites for new large ground-based telescopes are selected primarily on the basis of all the following except
- A.
Proximity to universities and research centers
- B.
Elevation above sea level.
- C.
The characteristics of the atmosphere above the proposed site.
- D.
Ability to see the southern sky.
- E.
Dark sky.
Correct Answer
A. Proximity to universities and research centers -
- 25.
The Hubble Space Telescope is a(n)
- A.
Ground-based refracting telescope
- B.
Ground-based reflecting telescope.
- C.
Orbiting refracting telescope.
- D.
Orbiting reflecting telescope.
- E.
Orbiting radio telescope.
Correct Answer
D. Orbiting reflecting telescope. -
- 26.
A radio telescope 100 meters across, when used to measure 10-centimeter waves, is
- A.
1,000,000 wavelengths across.
- B.
1000 wavelengths across.
- C.
100 wavelengths across.
- D.
10 wavelengths across.
- E.
1 wavelength across.
Correct Answer
B. 1000 wavelengths across. -
- 27.
A method for improving the images produced by ground-based optical telescopes despite blurring by the Earth'satmosphere is called
- A.
Fourier transformation.
- B.
Very long baseline interferometry
- C.
Down-conversion
- D.
Adaptive optics.
- E.
Narrow-band filtering.
Correct Answer
D. Adaptive optics. -
- 28.
The ability to distinguish between details or to distinguish two adjacent objects as separate is
- A.
Reflection.
- B.
Refraction
- C.
Aperture.
- D.
Resolution.
- E.
Spectroscopy.
Correct Answer
D. Resolution. -
- 29.
NASA's successor to the Hubble Space Telescope is to be the
- A.
Planck Telescope.
- B.
Extremely Large Telescope.
- C.
Neil Armstrong Space Telescope.
- D.
George Washington Telescope.
- E.
James Webb Space Telescope.
Correct Answer
E. James Webb Space Telescope. -
- 30.
NASA's set of Great Observatories includes all but
- A.
Hubble Space Telescope
- B.
Spitzer Space Telescope
- C.
Compton Gamma-ray Observatory
- D.
Chandra X-ray Observatory
- E.
Keck Telescope
Correct Answer
E. Keck Telescope -
- 31.
The most obvious difference between the images of planets and stars, as seen from the ground, is that stars
- A.
Twinkle.
- B.
Change color.
- C.
Are very small.
- D.
Move through the sky.
- E.
Change their shape.
Correct Answer
A. Twinkle. -
- 32.
For any location on the Earth there is a point directly overhead in the sky called the
- A.
Autumnal equinox.
- B.
Vernal equinox.
- C.
Hour circle.
- D.
Meridian.
- E.
Zenith.
Correct Answer
E. Zenith. -
- 33.
The calendar containing 365 days with every fourth year a leap year, except century years not divisible by 400, is the
- A.
Babylonian calendar.
- B.
Gregorian calendar.
- C.
Julian calendar
- D.
Roman calendar
- E.
King James calendar.
Correct Answer
B. Gregorian calendar. -
- 34.
If the Sun is just setting, and the Moon is at its first quarter phase, the Moon will be
- A.
Directly overhead.
- B.
On the meridian.
- C.
On the eastern horizon.
- D.
Below the horizon
- E.
5° below the zenith.
Correct Answer(s)
B. On the meridian.
E. 5° below the zenith. -
- 35.
The period between new Moons is called a
- A.
Lunar year
- B.
Month.
- C.
Sidereal day
- D.
Fortnight
- E.
Saros.
Correct Answer
B. Month. -
- 36.
The photosphere of the Sun as seen from Earth, covers an angle of about
- A.
1/2°.
- B.
1°.
- C.
2°.
- D.
5°.
- E.
10°.
Correct Answer
A. 1/2°. -
- 37.
A star that is 100 times fainter than another star at the same distance will be
- A.
1 magnitude dimmer
- B.
2.5 magnitudes dimmer.
- C.
3 magnitudes dimmer.
- D.
5 magnitudes dimmer.
- E.
10 magnitudes dimmer.
Correct Answer
D. 5 magnitudes dimmer. -
- 38.
The moon looks reddish at a total lunar eclipse because
- A.
The Sun hits it at sunset.
- B.
It is illuminated mainly by the Sun's H-alpha red radiation.
- C.
It is red hot.
- D.
It is Dopper shifted into the red.
- E.
Sunlight is bent through the Earth's atmosphere, with blue scattered out.
Correct Answer
E. Sunlight is bent through the Earth's atmosphere, with blue scattered out. -
- 39.
If the North Star is Polaris, the South Star is
- A.
Betelgeuse
- B.
Orion
- C.
Non-existent.
- D.
Octans.
- E.
Sirius.
Correct Answer
C. Non-existent. -
- 40.
When the next total solar eclipse occurs in the United States, viewers will have to
- A.
Use solar filters during totality.
- B.
Travel to a path about 200 km wide.
- C.
Use pinhole cameras to see it.
- D.
Pay admission.
- E.
Cover their eyes.
Correct Answer
B. Travel to a path about 200 km wide. -
- 41.
Not long after the death of Nicholas Copernicus, a Danish nobleman used giant instruments to makeobservations of the planet's motions with unprecedented accuracy. This astronomer was
- A.
Galileo Galilei
- B.
Johannes Kepler.
- C.
Isaac Newton.
- D.
Tycho Brahe.
- E.
Ole Rømer.
Correct Answer
D. Tycho Brahe. -
- 42.
Ptolemy's ideas about the Universe and a summary of the ideas of his predecessors were contained in his majorwork,
- A.
The Almagest.
- B.
The Encyclopedia.
- C.
Primum Mobile.
- D.
Revolutionibus.
- E.
Sidereus Nuncius.
Correct Answer
A. The Almagest. -
- 43.
Which pair of planets was known to the ancient Greeks?
- A.
Venus, Mars
- B.
Earth, Uranus
- C.
Jupiter, Pluto
- D.
Saturn, Neptune
- E.
Pluto, Mars
Correct Answer
A. Venus, Mars -
- 44.
The closer a planet, asteroid, or comet is to the Sun in its orbit, the faster it moves. This is a consequence of
- A.
Kepler's first law.
- B.
The Law of Equal Areas.
- C.
Kepler's third law.
- D.
The speed of light.
- E.
Newton's second law.
Correct Answer
B. The Law of Equal Areas. -
- 45.
Galileo's telescopic observations of Venus proved conclusively that
- A.
Venus does not travel on a deferent centered on the Earth.
- B.
The Earth orbits the Sun.
- C.
The orbit of Venus is elliptical.
- D.
The orbit of the Earth is elliptical.
- E.
The axis of the Earth is inclined.
Correct Answer
A. Venus does not travel on a deferent centered on the Earth. -
- 46.
If a satellite orbiting just above the surface of the Earth orbits in about 1.5 hours, then at about how many Earthradii from the Earth's center must a satellite orbit to have a period of 24 hours?
- A.
2.1
- B.
6.4
- C.
8
- D.
11.3
- E.
24
Correct Answer
B. 6.4 -
- 47.
The line that extends from one edge of an ellipse to the other, passing through both foci of the ellipse is calledthe
- A.
Eccentric.
- B.
Major axis.
- C.
Semimajor axis.
- D.
Minor axis.
- E.
Semiminor axis.
Correct Answer
B. Major axis. -
- 48.
An object is moving through space. If all forces are removed from the object, then it will
- A.
Continue in a straight line but slow down and stop
- B.
Move in random directions.
- C.
Continue in a straight line at constant speed.
- D.
Enter a circular orbit.
Correct Answer
C. Continue in a straight line at constant speed. -
- 49.
Two remarkable aspects of our solar system that must be accounted for in any theory of cosmogony are that
- A.
The planets all have the same density and composition
- B.
All of the planets revolve around the Sun in the same sense as the Sun rotates, and the orbits of all of the planets lie in nearly the same plane.
- C.
All of the planets rotate in the same sense as the Sun, and all have a density similar to that of water
- D.
The orbits of all of the planets lie in nearly the same plane, and all have the same composition
Correct Answer
B. All of the planets revolve around the Sun in the same sense as the Sun rotates, and the orbits of all of the planets lie in nearly the same plane. -
- 50.
Which is the only planet (of the 9-planet system) whose orbit is significantly tilted with respect to the ecliptic?
- A.
Mercury
- B.
Earth
- C.
Jupiter
- D.
Saturn
- E.
Pluto
Correct Answer
E. Pluto -
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Mar 21, 2022Quiz Edited by
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