PHSC 121 Quiz 2

PHSC 121 Quiz 2 Liberty University

  1. According to the DVD “Our Created Solar System,” the process of accretion that leads to the formation of planetesimals from dust is a well-defined process based on direct observation.
  2. Eudoxus of Cnidus (408–355 BCE), a student of Plato’s, applied the principle of heliocentric motion to produce a mathematical description of the motions of the Universe.
  3. Kepler discovered that planets do not move at uniform speeds along their elliptical orbits.
  4. Which planet did Galileo observe go through a complete set of phases, thus proving the Ptolemaic model wrong?
  5. According to the DVD “Our Created Solar System,” what specific explanation or model is most commonly used today by secular scientists to explain how planets form?
  6. When Tycho saw no parallax in the position of a new star, he published his evidence against which model of the Universe?
  7. Early astronomers believed that Earth did not move because they saw no ____, the apparent motion of an object because of the motion of the observer.
  8. The 99 years that revolutionized Astronomy ended with whose death?
  9. What was the most controversial issue surrounding the nature of the Universe during the Renaissance?
  10. Galileo’s discovery of Saturn’s moons proved that Earth, too, could move and still keep its satellite.
  11. Which publication was Kepler’s masterpiece, providing strong evidence to planetary motion and a heliocentric Universe?
  12. Greek philosophers used religion and astrology to understand the mysteries of the Universe.
  13. According to the DVD “Our Created Solar System,” we can determine the age of Venus because we know how often craters form on its surface today, and we know that this rate of formation has always been the same in the past.
  14. Which model did Galileo disprove by discovering the transit of Venus?
  15. What tool did Galileo use to prove that the Moon was not perfect?
  16. Visible light with wavelengths at the long-wavelength end (λ = 700 nm) appears as which color?
  17. If telescope A is 160 cm in diameter, and telescope B is 32 cm in diameter, how much more light does telescope A gather than telescope B?
  18. The Very Large Array radio telescope in New Mexico is an example of the use of which astronomical technique?
  19. The energy a photon carries is inversely proportional to __________.
  20. A(n) __________ is both an image-recording device and a photometer.
  21. Red light of the visible light spectrum has longer wavelengths than blue.
  22. Which form of radiation has the lowest frequency?
  23. What is so unique about the mirrors of telescopes such as the Keck Observatory, Gran Telescopio Canaries, and the soon-to-be-built Giant Magellan Telescope?
  24. No radio waves penetrate the Earth’s atmosphere.
  25. Which part of a telescope is responsible for magnifying an image?
  26. The larger the diameter of a telescope, the more light it will collect.
  27. What does a refracting telescope use to gather and focus light?
  28. The telescope that would be most useful for studying relatively “cool” objects or objects shrouded in dust would be
  29. Cosmic rays are made of photons.
  30. The ____ of a radio telescope collects and focuses radiation.
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