KAPLAN SC200 UNIT 2 QUIZ (LATEST 2015) 2015

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    Question 1. Question :
    Which of the following affects the life of a star?
    gravitational force
    mass
    temperature
    fusion processes
    all of these are correct
    Points Received: 1 of 1
    Question 2. Question :
    If you were to observe a pulsar what would you see?
    a blinking red glow
    intermittent radio waves
    a steady glow that oscillates among the stars
    the sudden brightening of a star
    the total eclipse of the Sun
    Points Received: 1 of 1
    Question 3. Question :
    Mendeleev’s periodic table was organized according to rules of scientific method. Which statement below follows those rules?
    The periodic table made predictions that could be tested.
    Only scientists could understand the periodic table.
    Information that refuted Mendeleev’s hypothesis was ignored.
    Mendeleev’s listed the elements alphabetically.
    The periodic table has not changed in 100 years.
    Points Received: 1 of 1
    Question 4. Question :
    The difference in appearance of a star from other stars is a function of
    the star’s gravitational force on the Earth.
    how far away the star is from other stars.
    the total energy emitted by the star.
    the composition of the core of the star.
    the star’s absolute brightness.
    Points Received: 1 of 1
    Question 5. Question :
    An object in the universe that will not allow the escape of anything from its gravitational field is a
    white dwarf
    black hole
    pulsar
    red dwarf
    neutron star
    Points Received: 1 of 1
    Question 6. Question :
    Which type of star is produced after a large star explodes in a supernova?
    a red giant
    a neutron star
    a proton star
    a red dwarf
    a white dwarf
    Points Received: 1 of 1
    Question 7. Question :
    The total collection of photons emitted by an atom is called its
    electromagnetic image
    periodic position
    spectrum
    energy signature
    stimulated emission
    Points Received: 1 of 1
    Question 8. Question :
    Which region of the electromagnetic spectrum can easily reach a telescope on the earth’s surface?
    radio waves
    microwaves
    ultraviolet
    X-rays
    gamma rays
    Points Received: 1 of 1
    Question 9. Question :
    The Hertzsprung-Russell diagram is a graphical technique used in astronomy to compare
    the surface temperature versus the energy output of a star.
    the star’s luminosity versus its distance from Earth.
    the absolute magnitude of the star versus the star’s relative temperature.
    the distance the Sun is from the nearest red giant.
    the location of possible solar systems in the Milky Way.
    Points Received: 1 of 1
    Question 10. Question :
    The dense central portion of an atom is its
    protons
    neutrons
    nucleus
    electrons
    spectrum
    Points Received: 1 of 1
    Question 11. Question :
    A material that cannot be broken down any further without losing its chemical properties is
    an ion
    a molecule
    an element
    a photon
    a laser
    Points Received: 1 of 1
    Question 12. Question :
    The electrically neutral particle found in an atom is the
    photon
    neutron
    electron
    nucleus
    Points Received: 1 of 1
    Question 13. Question :
    An electrically charged atom is
    a proton
    an ion
    an electron
    a neutron
    a molecule
    Points Received: 1 of 1

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