The diagram below shows the Moon orbiting Earth, as viewed ...



Base your answers to questions 1 through 3 on the diagram below, which shows the Moon at positions A through H in its orbit around Earth.

1) Which letters represent the two positions of the Moon when the least difference between the levels of high and low ocean tides occur on Earth?

____________________________

2) How many days does it take for the Moon to complete one cycle of phases as viewed from Earth?

____________________________

3) At which Moon position could a lunar eclipse occur?

____________________________

An observer recorded the times of three successive high tides at one Earth location as:

• 7:12 a.m.

• 7:38 p.m.

• 8:04 a.m.

4) ____ What was the time of the next high tide?

a) 8:12 p.m.

b) 8:30 p.m.

c) 8:38 p.m.

d) 9:04 p.m.

5) ____ The diagram shows the Moon as it revolves around Earth. The numbered locations represent different positions of the Moon in its orbit. Which Moon phase would be seen by an observer in New York State when the Moon is at position 2?

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6) ____ The photographs show the surface of the Moon as seen from Earth over an 80-minute period during a single night.

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Which motion is responsible for this changing appearance of the Moon?

a) The Moon moves into the shadow of Earth.

b) The Moon moves into the shadow of the Sun.

c) The Sun moves into the shadow of Earth.

d) The Sun moves into the shadow of the Moon.

7) ____ Which diagram best represents the

size of the Moon, compared to Earth,

when drawn to scale?

8) ____ How many days are required for the Moon to go from one full-Moon phase to the next full-Moon phase when viewed from Earth?

a) 24

b) 27.3

c) 29.5

d) 365

Base your answers to questions 9 through 11 on the information about a solar eclipse that will occur on August 21, 2017. The latitude and longitude coordinates for the movement of the center of the Moon’s shadow across Earth’s surface are given in the table.

9) On the graph provided, plot with an X the path of the center of the Moon’s shadow for each position given in the data table. Connect the Xs with a smooth, curved line. Shadow position number 1 has been plotted on the graph.

10) The path of the Moon’s shadow will be approximately 100 kilometers wide. On the graph provided, shade the area between positions 1 and 2 to show the width of the Moon’s shadow on Earth.

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11) On the diagram provided, place an X on the Moon’s orbit to show the Moon’s position during a solar eclipse.

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Base your answers to questions 12 through 15 on the diagram below, which shows Earth and the Moon in relation to the Sun. Positions A, B, C, and D show the Moon at specific locations in its orbit. Point X is a location on Earth’s surface.

12) ____ What is the time of day at point X?

a) 6 a.m.

b) noon

c) 6 p.m.

d) midnight

13) ____ On what date does the line separating day and night pass through Earth’s North Pole, as shown in this diagram?

a) December 21

b) January 21

c) March 21

d) June 21

14) ____ A solar eclipse might occur when the Moon is at location

a) A

b) B

c) C

d) D

15) ____ Which phase of the Moon would be observed on Earth when the Moon is at location A?

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