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PHYS 1830

Chantal Delaquis 10 preguntas

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Preguntas del test (10)

  1. 1What is the Celestial Sphere?
    1. AThe sphere surrounding the Earth
    2. BA layer of the atmosphere
    3. CSpherical coordinates to locate sky objects, similar to latitude and longitude
  2. 2The Earth's equator is projected to make the celestial equator.
    1. AVerdadero
    2. BFalso
  3. 3Why do constellations appear to move across the sky?
    1. AThe rotation of the Earth around the Sun
    2. BThe rotation of the galaxy on its axis
    3. CThe Earth spins on it's axis
    4. DThe rotation of the sky
  4. 4When stars are in the same place; fixed stars in the sky behind Sun:
    1. ADiurnal motion
    2. BSidereal day
    3. CSeasonal changes
  5. 5Seasonal change in the night sky are due to the Moon's motion around the Earth.
    1. AVerdadero
    2. BFalso
  6. 6What is the Ecliptic?
    1. Atwelve constellations called the zodiac are revealed as the Sun moves through the year
    2. Bplane of Earth's path around the Sun; 23.5 degrees to the celestial equator; path that the Sun, Moon, and the planets follow through the constellations
    3. CThe tilt in the Earth's axis
    4. DWhen the Sun eclipses the Moon
  7. 7Precession is the rotation of Earth's axis itself; will make one complete circle in about 26 000 years
    1. AVerdadero
    2. BFalso
  8. 8What is the difference between the Synodic month and the Sidereal month?
    1. AThe synodic month is the 29.5 days it takes for the moon to go through a whole cycle of phases and the sidereal month is the full rotation of the moon around the Earth
    2. BThe synodic month is the time to make a full rotation around the Earth and the sidereal month is the 29.5 days it takes for the moon to go through a full cycle of phases
    3. CSynodic month is the phases of the moon and the sidereal month is the time it takes for the moon to circle the Earth twice
  9. 9The corona is always visible, except during a solar eclipse.
    1. AVerdadero
    2. BFalso
  10. 10Which of the following is false about parallax?
    1. Alooks at apparent motion of the object against distant background from two vantage points
    2. BParallax angle is inversely proportional to distance
    3. CVery different form triangulation
    4. DUses the Earth's position at one time and then 1/2 a year later

Información

Descripción
PHYS 1830 Test sobre PHYS 1830 , creado por Chantal Delaquis el 08/04/2017.
Idioma
English
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