Phys141 Principles of Physical Science Chapter 17 The Moon Instructor: Li Ma Office: NBC 126 Phone: (713) 313-7028 Webpage:

Slides:

Advertisements

Similar presentations

Moon Phases Describe the changes in the observable shape of the moon over the course of about a month. Today, we are going to take a closer look at the.

Advertisements

Earth & Moon Mr. Skirbst Physical Science Topic 28.

Earth’s Moon Chapter 20 Lesson 2. Facts 1.2% less than Earth’s mass 1.2% less than Earth’s mass 27% less than Earth’s diameter 27% less than Earth’s diameter.

Revolution and Rotation of the Moon

Guiding Questions Why does the Moon go through phases?

Observing the Moon and Eclipses Astronomy 311 Professor Lee Carkner Lecture 4.

The Lunar Cycle NSF North Mississippi GK-8.

Different Faces in the Night

Aim: Does the moon actually change shape?. Earth was hit by the impactors too but we have weather, water, erosion, plants, plate tectonics that changes.

The Earth’s Moon.

The Moon Phases of the Moon Tides Characteristics of the Moon Spherical; made of rock Has no atmosphere, no water, and no living things Drastic temperature.

Phases of the Moon NSF North Mississippi GK-8.

PTYS/ASTR 206Lunar Phases / Eclipses 1/25/07 Today: Moon Phases.

DO NOW: WHY DOES THE MOON APPEAR TO SHINE? AIM 15: Why does the moon appear to look different to us on Earth every day? HOMEWORK: Textbook pages

The Night Sky. Ancient Astronomy Early astronomers paid attention to the sky and were careful to not offend the gods that rule the skies. The time it.

Motion of the Moon.

The Moon The moon’s light. The sun’s light is reflected off of the moon’s surface. The different colors on the moon’s surface are caused by the different.

I.The Moon and Sun cause affects that we can see on Earth. These effects are caused by their gravity and their position in relation to each other. The.

Phys141 Principles of Physical Science Chapter 16 Place and Time

Week 2 Earthly Phenomena: Seasons Lunar Phases Solar and Lunar Eclipses Tides Reading: E2, E3, 5.2 (12 pages)

 Rotation  The amount of time it takes for Earth to spin around once.  ONE DAY  Revolution  The amount of time it takes for Earth to go around the.

THE MOON. REVOLUTION AND ROTATION Relative to stars, Moon moves eastward by about 13° per day. Eastward motion is faster than that of Sun; meaning Moon.

1. what moon is this  A) waxing gibbous B) Waning gibbous C) Waning crescent D) New moon.

The Moon Formation - Impact from Mars-size object ejects material into orbit… forms Moon. - Best model to explain Moon’s composition.

LUNAR PHASES. “Everybody is a moon, and has a dark side which he never shows to anybody” -Mark Twain.

Moon Vocabulary. rotation One complete turn, on its axis.

Phases, Eclipses, and Tides Phases, Eclipses, and Tides As the moon revolves around Earth and Earth revolves around the sun, the relative positions of.

Phases of the Moon Standard 1 Students will understand that the appearance of the moon changes in a predictable cycle as it orbits Earth and as Earth rotates.

Observing the Phases of the Moon. Moon Orbit Moon orbits Earth every 27.3 days As it revolves it also rotates on its axis Therefore, the same side of.

The Sun, Earth, and Moon System

Phys141 Principles of Physical Science Chapter 15 The Solar System Instructor: Li Ma Office: NBC 126 Phone: (713)

7.3 Movements of Earth and the Moon

Unit 4 Motions of Earth, Moon, and Sun. Apparent Motions of Celestial Objects Apparent Apparent motion is the motion an object appears to make. Can be.

Eclipses and the Motion of the Moon

The Moon and Moon Phases

EARTH’S MOON. WHAT CAUSES MOON PHASES? HALF LIT AND HALF DARK CLICK.

Identify the following moon phase.

© A. Weinberg Turn to page 78 of your textbook. Work with your table group to answer the boxes numbered 1-6.

Moon and its motions.

ASTR 111 – 003 Fall 2007 Lecture 02 Sep. 10, 2007 Introducing Astronomy (chap. 1-6) Introduction To Modern Astronomy I: Solar System Ch1: Astronomy and.

The Moon. Motions of the Moon Moon takes 27 1/3 days to revolve around Earth Moon takes 27 1/3 days to revolve around Earth Half of the Moon is always.

ASTR 111 – 003 Fall 2006 Lecture 03 Sep. 18, 2006 Introducing Astronomy (chap. 1-6) Introduction To Modern Astronomy II Ch1: Astronomy and the Universe.

Lesson 5: Investigating Lunar Phases. The moon goes through a cycle of changes in its apparent shape which are referred to as “Phases.” We see these phases.

Topic 4. What is the motion of the moon around Earth? The moon revolves around the Earth in a elliptical orbit that is titled 5 degrees from the Earth’s.

The Moon. Moons Surface  First seen up close with a telescope by Galileo in 1609  Covered with craters, mountains, and maria  Dry and airless (no atmosphere.

MOON PHASES Parts of the Lunar Cycle. Moon Phases During the lunar cycle, you see different portions of the daylight side of the moon. During the lunar.

1 PHASES OF THE MOON STUDY GUIDE. 2 3 What moon phase? waxing crescent.

View of Earth from the moon at night.. The Moon 5 th largest moon in Solar system Only ET object visited by humans Larger than Pluto.

Phases, Eclipses, and Tides Notes. Lunar Motions Our moon’s name = Luna The changing relative positions of the moon, Earth, and sun cause the phases of.

To the Moon! (use the model)  As the Apollo missions left the Earth's orbit and headed to the Moon, their speed was about 24,000 miles per hour. The.

The Moon’s Motions Aim: How does the moon move in relation to the Earth?

MOON LAB 4. LAB 4.1 As seen from space, half the Moon is illuminated and half is dark at each position as it orbits Earth. The exception to this is when.

Performance Indicator 8.E.4B.4

PHASES OF THE MOON.

7.3 Movements of Earth and the Moon (Pages )

Lunar Cycle Notes.

Sun-Earth-Moon Systems

Lunar Cycle Notes.

Lunar Cycle Notes.

THE MOON’S EFFECT ON EARTH

Phases of the Moon The moon revolves around Earth once a month causing the phases of the moon The phases are caused by the position of the moon relative.

The Moon & Tides Chapters 22.2 & 16.2

3. Lunar Motions & Eclipses

Presentation transcript:

Phys141 Principles of Physical Science Chapter 17 The Moon Instructor: Li Ma Office: NBC 126 Phone: (713) Webpage: Department of Computer Science & Physics Texas Southern University, Houston Nov. 22, 2004

Topics To Be Discussed General Features Lunar Motions Phases of the Moon Skip –§17.2 Composition and History of the Moon –§17.5 Eclipses –§17.6 Ocean Tides

About the Moon The Moon is related to the time measurement –The length of our present month is based on the motion and phases of the Moon The Moon appears as the second-brightest object in the sky because it is very close to us –The average distance between the Earth and the Moon is 384,000 km

General Features of the Moon The Moon revolves around the Earth in approximately 29.5 solar days Because it rotates at the same rate as it revolves around the Earth, we see only one side of the Moon So on the Moon –You can always see the Earth if you stand on the side facing the Earth –The Sun appears to rise and set once every 29.5 days

General Features of the Moon (cont) The nearly spherical Moon has a diameter of 3476 km, slightly greater than one-fourth of the Earth’s diameter The surface gravity of the Moon is only one- sixth that of the Earth The Moon does not possess a detectible magnetic field Its phases and the appearance of its surface are the Moon’s predominant features

General Features of the Moon (cont) The surface of the Moon is marked with craters, basins, plains, rays, rills, mountain ranges, and faults These features vary in size, shape, and structure The most outstanding of them are the craters that are clearly visible to an Earth’s observer with even a telescope

Lunar Motions The Moon revolves eastward around the Earth in an elliptical orbit There are two different months –The period of the Moon with respect to the Sun is a little over 29.5 days – synodic month, or the month of the phases –The period of the Moon with respect to a star other than the Sun is approximately days – sidereal month, the actual time it takes for the Moon to revolve 360°

Lunar Motions (cont) To an observer on the Earth, the Moon appears to rise in the east and set in the west each day. This apparent motion of the Moon is due to the Earth’s completing one revolution each day

Phases of the Moon The most outstanding feature is the periodic change in its appearance –A new moon: the illuminated half is all hidden –A full moon: the illuminated half is all presented –A crescent moon: less than one-quarter of the Moon’s surface appears illuminated –A gibbous moon: more than one-quarter of the Moon’s surface illuminated

Phases of the Moon (cont) The new phase of the Moon occurs when the Earth, Sun, and Moon are in the same plane, with the Moon positioned between the Sun and Earth The Moon is in first-quarter phase when it is 90° east of the Sun When the Moon is 270° east of the Sun, it will be in the last-quarter phase

Phases of the Moon (cont) When the Moon is 180° east of the Sun, it will be in full phase and will appear as a full moon to the Earthbound observer The waxing phase means that the illuminated portion of the Moon is getting larger The waning phase means that the illuminated portion of the Moon is getting smaller

Assignment Homework Assignment –Review Questions (page 455 – 456): 2,5,6,24,28,29,32,36 –Exercises (page 457): 2 –It’s due Monday, 12/6/04 Reading Assignment –Chapter 18