Astronomy Question Preview (ID: 91)
Planets, And Orbits.
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Why do the pole stars appear to move around Polaris?
a) The earth rotates on ts axis
b) The earth's orbit is elliptical
c) The earth revolves around the sun
d) The earth is an oblate spheroid
Polaris is used for navigation because
a) It rises in the east and sets in the west
b) It circles the earth in a cyclic manner
c) It appears to remain stationary in the sky
d) It's altitude increases as you head toward the equator
The rotation of the earth was best proved by
a) The changes in seasons
b) The movement of constellations in the sky
c) The phases of the moon
d) The swinging of the Foucault Pendulum
The Milky Way Galaxy is
a) a spiral galaxy consisting of hundreds of stars
b) a spiral galaxy consisting of billions of stars
c) a spiral galaxy consisting of one star, our sun
d) an elliptal galaxy consisting of millions of stars
The corilois effect causes winds to
a) deflect to the left in the northern hemisphere and to the right in the southern
b) deflect to the right in both hemispheres
c) deflect left in both hemispheres
d) defelect to the right in the northern hemisphere and to the left in the southern
The apparnt motion of the rising and setting of the moon is caused by
a) the earth's revolution
b) the earth's rotation
c) the sun's rotation
d) the sun's revolution
Compared to the Jovian planets, the terrestial planets are
a) more dense and smaller
b) more dense and larger
c) less dense and smaller
d) less dense and larger
As a planet's eccentricity decreases, the shape will
a) become less eccentric and more elongated
b) become more eccentric and closer to a circle
c) become less eccentric and closer to a circle
d) become more eccentric and more elongated
The sun is the center of
a) our galaxy
b) our universe
c) the big dipper
d) our solar system
In a geocentric universe
a) all celestial objects revolve around the sun
b) the sun revolves around the earth but other planets revolve around the sun
c) all celestial objects revolve around the earth
d) the earth revolves around the sun but other planets revolve around the earth
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