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Guided Notes about the Moon and the Tides

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Guided Notes about the Moon and the Tides Just as the Sun appears to change its position in the sky, so too, does the Moon.This is a result of the movement of the ... – PowerPoint PPT presentation

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Title: Guided Notes about the Moon and the Tides


1
Guided Notes about the Moon and the Tides
2
  • Just as the Sun appears to change its position in
    the sky, so too, does the Moon.This is a result
    of the movement of the Moon around the Earth and
    our changing viewpoint on Earth relative to the
    Sun.

3
  • 2. The sequential changes in the appearance of
    the Moon are called lunar phases.

4
  • 3. The Moon does not emit visible light instead
    we see the Moons reflection of the Suns light.

5
  • 4. The new moon is the phase created when the
    Moon is positioned between Earth and the Sun.

6
  • 5. As the Moon moves along in its orbit, the
    amount of reflected light that we can see
    increases. The increase in the portion of the
    sunlit side of the Moon is called waxing. When
    we can see half of the sunlit side, it is called
    the first quarter.

7
  • 6. The full moon is the phase created when Earth
    is between the Moon and the Sun, and we are able
    to see the entire sunlit side of the Moon.

8
  • 7. The decrease in the amount of the sunlit side
    of the Moon is called waning. During this phase,
    when we see half of the sunlit side, it is called
    the third quarter.

9
  • 8. As the Moon orbits Earth, the same side faces
    Earth at all times because the Moon is rotating
    with a period equal to its orbital period, so it
    spins exactly once each time it goes around
    Earth.

10
  • 9. The lunar month is the length of time it
    takes for the Moon to go through a complete cycle
    of phases. The length of a lunar month is about
    29.5 days.

11
  • 10.One of the Moons effects on Earth is the
    formation of tides, which occur roughly every 12
    hours.

12
  • The basic causes of tides are the gravitational
    attraction among Earth, the Moon and the Sun.

13
  • 2. The Moon does not actually orbit Earth.
    Rather, both Earth and the Moon orbit around a
    common center of gravity. As a result of their
    motions, both Earth and the Moon experience
    differing gravitational forces. The unbalanced
    forces generate tidal bulges on opposite sides of
    the Earth.

14
  • 3. Lunar tides are more than twice as high as
    those caused by the Sun because the Moon is much
    closer to Earth. Earths tidal bulges are always
    aligned with the Moon.

15
  • 4. Solar tides can either enhance or diminish
    lunar tides. Spring tides are large tidal ranges
    that occur when the Moon is either full or new
    and the Sun, Moon, and Earth are aligned. Spring
    tides have high tides that are higher than normal
    and low tides that are lower than normal.

16
  • 5. Neap tides occur when there is a first- or
    third- quarter Moon. During these times, the
    Sun, Moon, and Earth form a right angle.During
    neap tides, high tides are lower than normal and
    low tides are higher than normal. Spring tides
    are, on average, three times higher than neap
    tides.
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