Name Roy G Biv

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Base your answers to questions 1 through 3 on the diagrams and tables below and on yourknowledge of Earth science. Each diagram represents the Moon's orbital position and eachtable lists times of high and low tides and tide heights, in meters, at New York City for thedate shown.

1. Determine the length of time between the two high tides shown for May 13.

2. On the diagram, shade the portion of the Moon that is in darkness to observers in New YorkCity on May 13.

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3. On the diagram, place an X on the Moon's orbit to represent the location of the Moon on May28.

4. Base your answer to the following question on diagram below, which shows Earth as viewedfrom above the North Pole. The nighttime side of Earth has been shaded. The Moon is shownat eight positions in its orbit around Earth. The name of each Moon phase is indicated at eachMoon position. The dark portion of each Moon position has not been shaded.

Explain what causes the Moon's phases when viewed from Earth.

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Base your answers to questions 5 and 6 on the diagram below, which represents eight positions of the Moon in its orbit around Earth.

5. Using the terms rotation and revolution, explain why the same side of the Moon always facesEarth.

6. The table below shows times of ocean tides on March 4 for a city on the Atlantic coast of theUnited States.

Determine the time when the next low tide occurred. Include a.m. or p.m. in your answer, ifneeded.

Base your answers to questions 7 and 8 on the diagram below and on your knowledge ofEarth science. The diagram represents the Moon in eight positions in its orbit around Earth.One position is labeled A.

7. State the number of days needed for the Moon to show a complete cycle of phases from onefull Moon to the next full Moon when viewed from New York State.

8. On the diagram above, circle the type of eclipse that may occur when the Moon is at position A. Explain why this type of eclipse may occur when the Moon is at this position.

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9. Base your answer to the following question on the calendar and data table below. The calendarshows the month of February 2007, indicating the dates when some lunar phases occurred.February 24 lists only the name of the Moon phase that occurred on that day. The data tableshows the highest and lowest tides (in feet) recorded for the Hudson River at Kingston, NewYork, over a 2-day period in February 2007.

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On the diagram below, draw a small circle (O) on the Moon's orbit to show the position of theMoon in its orbit on February 2.

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10. Base your answer to the following question on the data table below, which shows thepercentage of the lighted side of the Moon visible from Earth for the first fourteen days of July2003

The diagram below shows the orbit of the Moon around Earth. Place an X on the orbit to showwhere the Moon was in its orbit on July 14, 2003.

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Base your answers to questions 11 and 12 on the passage below.

The Moon Is Moving Away While Earth's Rotation Slows

Tides on Earth are primarily caused by the gravitational force of the Moon acting onEarth's surface. The Moon causes two tidal bulges to occur on Earth: the direct tidal bulgeoccurs on the side facing the Moon, and the indirect tidal bulge occurs on the oppositeside of Earth. Since Earth rotates, the bulges are swept forward along Earth's surface. Thisadvancing bulge helps pull the Moon forward in its orbit, resulting in a larger orbitalradius. The Moon is actually getting farther away from Earth, at a rate of approximately3.8 centimeters per year. The Moon's gravity is also pulling on the direct tidal bulge. This pulling on the bulgecauses friction of ocean water against the ocean floor, slowing the rotation of Earth at arate of 0.002 second per 100 years.

11.Explain why the force of gravity between the Moon and Earth will decrease over time.

12. Explain why the Moon has a greater influence than the Sun on Earth's tides.

13. Base your answer to the following question on the diagram below. The diagram shows theSun, Earth, and the Moon's orbit around Earth as viewed from space.

To represent the Moon's postion in its orbit when a solar eclipse is viewed from earth, draw acircle to represent the Moon's position in its orbit when a solar eclipse is viewed from Earth.

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Base your answers to questions 14 and 15 on the diagrams below. Diagram I represents theMoon orbiting the Earth as viewed from space above the North Pole. The Moon is shown at 8different positions in its orbit. Diagram II represents phases of the Moon as seen from theEarth when the Moon is at position 2 and at position 4.

14. State the two positions of the Moon at which an eclipse could occur.

15. Shade the circle provided to illustrate the Moon's phase as seen from the Earth when theMoon is at position 7.

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Base your answers to questions 16 and 17 on the diagram below and on your knowledge of Earth Science. The diagram represents theMoon at eight numbered positions in its orbit around Earth. The nighttime sides of the Moonand Earth are shaded.

16. Explain why the Moon's orbital velocity is slowest when the Moon is farthest from Earth.

17. The photograph below shows a phase of the Moon as observed from New York State.

State the numbered position at which the Moon was located when the photograph was taken.

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Base your answers to questions 18 and 19 on the diagram in your answer booklet, whichshows the Moon's orbit around Earth.

18. How long does it take the Moon to complete one revolution around Earth? Expressyour answer to the nearest tenth of a day.

19. Explain why lunar eclipses only occur when the Moon and the Sun are on opposite sides ofEarth

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20. Base your answer to the following question on on the information below about a solar eclipse that will occur on August 21, 2017. Thelatitude and longitude coordinates for the movement of the center of the Moon's shadowacross the Earth's surface are given in the table.

The path of the Moon's shadow will be approximately 100 kilometers wide. On the graphnow shade the area between positions 1 and 3 to show the width of the Moon's shadow onEarth.

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21. Base your answer to the following question on the data table below and on your knowledge ofEarth science. The table shows the distance from Earth to the Moon for certain days duringDecember 2010. The percent of the Moon illuminated by the Sun as seen from Earth is alsogiven.

A lunar eclipse occurred during December 2010. On which date did this eclipse most likelyoccur?

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22. Base your answer to the next question on the information below about a solar eclipse that willoccur on August 21, 2017. The latitude and longitude coordinates for the movement of thecenter of the Moon's shadow across the Earth's surface are given in the table.

On the graph below, plot with an X the path of the center of the Moon's shadow for eachposition given in the data table. Connect the Xs with a smooth, curved line. Shadow positionnumber 1 has been plotted on the graph.

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23. Base your answer to the following question on the bar graph below and on the data table inyour answer booklet. The bar graph shows the number of partial lunar eclipses that occurredduring each of the last nine centuries (100-year intervals) on Earth. A partial lunar eclipseoccurs when only part of the Moon is within the darkest part of Earth's shadow. The datatable in your answer booklet shows the number of total lunar eclipses that occurred during thesame nine centuries. A total lunar eclipse occurs when the entire Moon is completely withinthe darkest part of Earth's shadow.]

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On the diagram below, draw an X so the center of the X indicates the position of Earth duringa lunar eclipse.

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24. Base your answer to the following question on the graph below and on your knowledge ofEarth science. The graph shows the average daily heights above or below sea level of highand low tides from April 15 to May 15, for a New York State location. Five Moon phases areindicated at the dates on which they occurred.

On the diagram,circle the two numbers on Earth's surface that best represent the locations ofhigh tide when the Moon is in the position shown on the diagram.

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25. Base your answer to the following question on the passage and map below and the tide table.The map shows the tidal range (the difference between the highest and lowest tides) in metersfor the Bay of Fundy, Chignecto Bay, and the Minas Basin. The table shows the times of highand low tides for Hopewell Cape for August 21 and 22,. 2005.

The Bay of Fundy has the Highest Tides on Earth

The unique shape of the Bay of Fundy contributes to the extremely high ocean tidesexperienced there. Frequently described as funnel shaped, the bay gradually becomesmore narrow and shallow to the northeast where it splits to form Chignecto Bay and theMinas Basin. The highest tides of the Bay of Fundy are found within these fingers of thebay and are caused by the incoming tides encountering seaward-moving river currents asthe bay narrows. The tide height is also affected by the amount of time it takes for hightide to flood the bay. This time is nearly identical from one high tide to the next.

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The diagram below shows the Moon's orbital path and Earth as viewed from space. Thepoints on Earth indicate two locations where high ocean tides are occurring. Place an X onthe Moon's orbital path to show where the Moon could be located when these high tides areproduced.

Answer Keymoon practice test

1. 12h 33 min2.

3.

4. Examples: —Moon phases arecaused by theMoon revolvingaround Earth. —The Moontraveling aroundEarth causes theMoon to show acycle of phases. —Different amountsof the lighted halfof the Moon areseen from Earth.

5. – The Moon'speriod of rotationequals its periodof revolution. –The Moon rotatesand revolves oncein 27.3 days. –The Moon rotatesand revolves at thesame rate.

6. –6:33 p.m. to 6:45p.m. or anymilitary time from18:33 to 18:45

7. 29 to 30 days

8. — The shadow ofthe Moon falls onEarth during asolar eclipse. —The Moon blockssome sunlightfrom reachingEarth. — TheMoon is alignedbetween the Sunand Earth. —Solar eclipsesoccur only duringthe New Moonphase.

9.

10.

11. — The Moon getsfarther away fromEarth. — Asdistance betweenobjects increases,the gravitationalattractiondecreases.

12. — The Moon iscloser to Earththan the Sun. —The Moon'sgravitationalattraction to Earthis greater than theSun's.

13.

14. positions 1 and 515.

16. –The gravitationalattraction betweenthe Moon andEarth is least whenthey are farthestapart. –The forceof gravity is less.–Gra- vitationalattraction isgreater when theMoon is closer toEarth.

17. 118. 27.3 days19. — During a lunar

eclipse, Earthblocks the sunlightfrom reaching theMoon. — Earth'sshadow must fallon the Moon. —The Moon mustmove into Earth'sshadow.

20.

21. —D- ecember 20,2010, or —D-ecember 21, 2010

22. .23.

24. numbers 1 and 5

25.