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
- 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
- 3.The distance traveled by light or by an object is equal to speed times
- A.
Frequency
- B.
Meters
- C.
Mass
- 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
- 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
- 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
- 7.In space light travels about
- A.
3 m/s
- B.
300 m/s
- C.
300 km/s
- 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
- 9.Ancient astronomers divided the sky into regions containing distinct groups of stars called
- A.
Clusters
- B.
Coordinates
- C.
Constellations
- D.
Galaxies
- E.
Nebula
- 10.Scientific results must be
- A.
Hyptothetical
- B.
Reproducible
- C.
Controversial
- D.
Believed by at least 50% of scientists
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
Questions: 10 | Attempts: 10618 | Last updated: Dec 17, 2019
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