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Astronomy

Test Description: Planets, and orbits

Instructions: Answer all questions to get your test result.

1) Why do the pole stars appear to move around Polaris?

AThe earth revolves around the sun BThe earth is an oblate spheroid CThe earth rotates on ts axis DThe earth's orbit is elliptical

2) Polaris is used for navigation because

AIt rises in the east and sets in the west BIt circles the earth in a cyclic manner CIt's altitude increases as you head toward the equator DIt appears to remain stationary in the sky

3) The rotation of the earth was best proved by

AThe movement of constellations in the sky BThe changes in seasons CThe phases of the moon DThe swinging of the Foucault Pendulum

4) The Milky Way Galaxy is

Aa spiral galaxy consisting of one star, our sun Ba spiral galaxy consisting of hundreds of stars Ca spiral galaxy consisting of billions of stars Dan elliptal galaxy consisting of millions of stars

5) The corilois effect causes winds to

Adeflect to the left in the northern hemisphere and to the right in the southern Bdefelect to the right in the northern hemisphere and to the left in the southern Cdeflect left in both hemispheres Ddeflect to the right in both hemispheres

6) The apparnt motion of the rising and setting of the moon is caused by

Athe earth's rotation Bthe sun's rotation Cthe sun's revolution Dthe earth's revolution

7) Compared to the Jovian planets, the terrestial planets are

Aless dense and smaller Bmore dense and larger Cless dense and larger Dmore dense and smaller

8) As a planet's eccentricity decreases, the shape will

Abecome less eccentric and more elongated Bbecome more eccentric and closer to a circle Cbecome less eccentric and closer to a circle Dbecome more eccentric and more elongated

9) The sun is the center of

Aour universe Bthe big dipper Cour galaxy Dour solar system

10) In a geocentric universe

Athe earth revolves around the sun but other planets revolve around the earth Ball celestial objects revolve around the earth Call celestial objects revolve around the sun Dthe sun revolves around the earth but other planets revolve around the sun

*select an answer for all questions

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