1) This motion of the Moon around the Earth is called (rotation/revolution) \ 2) The time that it takes for the Moon to make one complete revolution around the Earth is known as a (sidereal/synodic) month.\ 3) How many Earth days does it take for the Moon to make one complete revolution around the Earth? \ 4) How many degrees does the Moon move during one complete revolution around the Earth? \ 5) Using your answers from questions 3 and 4, determine how many degrees the Moon moves each Earth day. \ 6) Using your answer from question #5 above, determine how many degrees the Moon moves in 1 hour. \ \ Pt 2: Repeat the entire activity, moving the Moon around the Earth. Make sure that the dot on the Moon always faces the Earth as it revolves around the Earth.\ 7) Does an Earth-bound observer ever see the back side of the Moon (that is, the side with no dot) at any point during the Moons rotation? \ 8) To an Earth-bound observer, does the Moon appear to rotate? \ 9) Does the Moon actually rotate? \ \ Pt 3: Repeat the entire activity again, moving the Moon around the Earth. Make sure that the dot always faces the Earth as it revolves around the Earth.\ 10) Did the dot on the Moon always face the Sun? \ 11) Would an observer on the Sun ever see the back of the Moon (that is, the side with no dot on it) at any point during the Moons rotation? \ 12) To an observer on the surface of the Sun, does the Moon appear to rotate? \ 13) From this activity you should be able to see that the Moon rotates on its axis as it revolves around Earth. To an Earth-bound observer, however, the Moon does not appear to rotate as it revolves around the Earth. For this to occur, the Moon must rotate (faster than/slower than/at exactly the same rate as) it revolves.\ 14) In other words, the Moons rate of rotation is equal to its revolution. Therefore, how many Earth days does it take for the Moon to complete one rotation? \ 15) A day is defined as the amount of time it takes for a body to complete one rotation. A year is defined as the time it takes a body to complete one revolution. A day on the Moon is (shorter than/longer than/ exactly as long as) one Moon year. (HINT: Remember the Moons rate of rotation is equal to its revolution.)\ \ ACTIVITY #2:\ THE PHASES OF THE MOON AND THE EARTH\ \ 1) The term used to describe the Moon as the lit portion increases is \ 2) The term used to describe the Moon as the lit portion decreases is \ 3) As the moon moves from new to full which side of the Moon is lit the left or the right? \ \ Locate Diagram 4 (The Orbit of the Moon) and use it to move the moon through its orbital motion.\ \ Position 1\ 4) What is the phase of the Moon in Position 1? \ 5) How many days will pass before this phase will be repeated? \ 6) The time period in question 3, above, is the length of a (sideral/synodic) month.\ \ Position 2\ 7) What is the phase of the Moon in Position 2? \ \ Position 3\ 8) At Position 3, the Moon has now completed percent of its orbit around the Earth.\ 9) Approximately how long does it take for the Moon to travel from position 1 to position 3? (HINT: How many days make up 25% of the lunar cycle?) \ 10) What is the phase of the Moon in Position 3? \ \ Position 4\ 11) What is the phase of the Moon in Position 4? Be sure to note whether the Moon is waxing or waning. \ \ Position 5\ 12) The Moon has now completed percent of its orbit around the Earth.\ 13) Approximately how long does it take for the Moon to travel from position 1 to position 5? \ 14) What is the phase of the Moon in Position 5? \ \ Position 6\ 15) What is the phase of the Moon in Position 6? \ \ Position 7\ 16) The Moon has now completed percent of its orbit around the Earth.\ 17) Approximately how long does it take for the Moon to travel from position 1 to position 7? \ 18) What is the phase of the Moon in Position 7? \ \ Position 8\ 19) What is the phase of the Moon in Position 8? \ \ Position 1 (at completion of orbit)\ 20) What is the phase of the Moon when it has returned to Position 1? \ 21) From new moon back to new moon means that the Moon has completed one (sidereal/synodic) month. \ \ ACTIVITY #3 WORKSHEET THE PHASES OF THE MOON AND THE EARTH\ \ \ \ \ \ \ Questions:\ 1) Explain and define what it means that the moon is tidally locked.\ \ \ \ \ 2) Explain and describe in detail what causes phases of the moon. Include a drawing to explain.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3) Explain and describe in detail why we dont have eclipses every month. You will need to look in your textbook for help with this answer. Again, include a drawing.