Moon Phases

The names and appearances of four Moon phases viewed by an observer in New York State in June are shown below.

Which diagram best represents the Moon's appearance on June 3?

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Tags

NGSS.MS-ESS1-1

Which diagram best represents the new gibbous phase of the Moon as seen by an observer in New York State?

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Tags

NGSS.MS-ESS1-1

How many days (d) are required for the Moon to complete a cycle of phases from one full Moon phase to the next full Moon phase?

• 15.0 d

• 27.3 d

• 29.5 d

• 365.3 d

Tags

NGSS.MS-ESS1-1

The same side of the Moon always faces Earth because the period of revolution of the Moon is

• shorter than the period of rotation of Earth

• shorter than the period of rotation of the Moon

• equal to the period of rotation of Earth

• equal to the period of rotation of the Moon

Tags

NGSS.MS-ESS1-1

Which diagram represents the phase of the Moon as viewed by an observer in New York State when the Moon is located at the position shown?

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Tags

NGSS.MS-ESS1-1

The diagram represents eight numbered positions of the Moon in its orbit around Earth.

Which phase of the Moon will be observed in New York State when the Moon is at position 8?

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Tags

NGSS.MS-ESS1-1

The diagram represents the Moon in eight positions, A through H, in its orbit around Earth.

Which Moon phase is observed in New York State when the Moon is located at position F?

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Tags

NGSS.MS-ESS1-1

How many days are required for the Moon to complete a cycle of phases from the new Moon position represented in the diagram to the new Moon the following month?

• 2.2 d

• 27.3 d

• 29.5 d

• 365.26 d

Tags

NGSS.MS-ESS1-1

Approximately how many days occur between the Moon's first-quarter phase and the Moon's last-quarter phase?

• 7 d

• 15 d

• 29.5 d

• 365.26 d

Tags

NGSS.MS-ESS1-1

What is the eccentricity of the Moon's orbit?

HINT: Use ESSRT page 2.

• 0.017

• 0.055

• 0.386

• 0.723