Foundations of Astronomy

The plane of the Earth's path around the sun is called:

• The Diurnal Plane

• Celestial Sphere

• The Sidereal Day

• The Ecliptic Plane

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NGSS.MS-ESS1-1

A "lunar month" is a period of how many days?

• 30 days

• 29.5 days

• 31.5 days

• 29 days

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When the Sun, Moon, and Earth form a straight line, what happens?

• A Sidereal Day

• A Synodic Month

• An Eclipse

• A Solstice

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Stars and objects in space appear to be on the inside of an imaginary object called the:

• Cosmic Cube

• Celestial Sphere

• The Universal Circle

• The Ecliptic Plane

The time from one Vernal Equinox to the next is called:

• Tropical Day

• Sidereal Year

• Tropical Year

• Sidereal Day

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What is the "lunar month" called?

• A Synodic Month

• A Diurnal Month

• A Sidereal Month

• An Equinox

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What makes the Zodiac constellations so special?

• They determine your personality

• They are always visible in the sky

• The sun passes through them

• They are visible everywhere in the world

Earth's seasons are caused by

• the precession of Earth's axis.

• its distance from the Sun.

• wobbles in its orbit and axis of rotation.

• its tilt; revolution around the Sun, and spherical shape.

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NGSS.MS-ESS1-1

Why does the sun appear to move across the sky over the course of a day?

• The Earth is stationary and the sun revolves around it.

• The Sun is stationary and the Earth rotates upon its axis.

• The Sun is stationary and the Earth revolves around it.

• Both the Sun and the Earth are revolving around each other.

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When we watch the nighttime sky, we find that

• the stars and constellations remain fixed in our sky, not rising or setting in a time as short as one night because they are so far away.

• most stars and constellations slowly rise in the east and set in the west.

• most stars and constellations slowly rise in the west and set in the east.

• all stars and constellations reach their highest point in the sky at midnight.