# ASTR 1010 Astronomy of the Solar System Professor Caillault Fall 2009 Semester Exam 1 Answers

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 ASTR 1010 Astronomy of the Solar System Professor Caillault Fall 2009 Semester Exam 1 Answers 1. The number of degrees in a full circle is (c) An arcsecond is a measure of (d) angle. 3. How many arcseconds are there in a full circle? (d) If the Moon subtends about ½ and is about 400,000 km from Earth, what is its approximate diameter? (c) 3500 km 5. The diameter of the hydrogen atom, meters can be written in scientific notation as (c) m (10 to the power 0) is (b) 1 7. What is the approximate angular diameter of the Sun in arcseconds? (d) Astronauts on the Moon look back at Earth, a distance of about 400,000 km away. If the cities of Washington, D.C., and New York are separated by about 300 km, what will be the angle between them when viewed from the Moon? (a) Consider the angular diameter of the planet Saturn as viewed from Earth. Which of the following is a correct statement about this angular diameter? (c) This value changes. The angular diameter gets larger as the Earth s distance to Saturn becomes smaller, and smaller as the Earth s distance to Saturn becomes larger. 10. The average distance from Earth to the Sun, 149,600,000 km, can be written in scientific notation as (b) km 11. By what approximate factor in scientific notation is a human being (height about 2 m) larger than the nucleus of a hydrogen atom, or proton (diameter about m)? (b) One astronomical unit, or one AU is defined as the (b) mean distance between the Sun and Earth.

2 13. Diurnal motion of objects in the sky is caused by the (d) rotation of Earth on its axis. 14. You are observing from the east coast of the United States as a star rises above the horizon. At this same instant your friend on the west coast will find that this star (d) has not yet risen. 15. What basic pattern do stars seem to trace out in our sky if you watch (or photograph) stars near the north celestial pole for a period of several hours? (a) circles, with the north celestial pole at the center 16. In late September, Andromeda appears high in the sky at midnight. Six months later Virgo appears high in the sky at midnight. Where is Andromeda at this time of the year? (a) It is high in the sky at noon and is thus not visible. 17. How much of the overall sky is north of the celestial equator, that is, in the northern hemisphere? (b) exactly one half 18. The celestial equator is defined as the (a) line in the sky that is perpendicular to Earth's spin axis. 19. Which of the following lines or points is always directly over your head, no matter where on Earth you go? (a) zenith 20. The ecliptic crosses the celestial equator at (d) two points, known as equinoxes. 21. If you view the sky from twenty degrees north of the equator, the north circumpolar stars (which do not rise and set) would be (b) the stars within twenty degrees of Polaris, the north star. 22. The apparent path of the Sun across our sky, day by day, throughout the year, is known as the (c) ecliptic. 23. If we could observe background stars in daylight, how would the Sun appear to move against this background because of our motion on an orbiting Earth? (a) 1 per day, from west to east 24. What is the primary cause of Earth s seasons? (b) Earth s rotation axis tilts with respect to the plane of its orbit around the Sun.

3 25. In the northern hemisphere, summertime occurs when (b) sunlight falls more directly on this hemisphere, heating it more than at other times of the year. 26. The direction of Earth s rotation about its axis is the same as the direction of its revolution about the Sun. How does a solar day compare to a sidereal day on Earth? (a) A solar day is always longer. 27. What does it mean to be in the tropics ; that is, between the Tropic of Cancer and the Tropic of Capricorn? (b) The Sun is directly overhead on at least one day of the year. 28. The vernal equinox is that time of the year when the (a) Sun crosses the equatorial plane, or celestial equator, moving north. 29. At the summer solstice in the northern hemisphere, the Sun (b) reaches its highest angle above the southern horizon for the whole year. 30. During one complete year, an observer on the equator would be able to see what fraction of the overall sky? (d) 100% 31. Precession is (b) a very slow conical motion of Earth's axis of rotation. 32. Precession of Earth's axis of rotation is caused by (c) the gravitational pull of the Moon and the Sun on the equatorial bulge of Earth. 33. An observer's meridian passes through (a) his zenith and the north and south celestial poles. 34. If you were going to send a spacecraft to circle the Moon and photograph the entire far side (the side not visible from Earth), during which lunar phase (as seen from Earth) would you do the photography? (a) new moon 35. Why do we see different phases of the Moon? (b) The motion of the Moon in its orbit around Earth causes us to see different amounts of the sunlit side of the Moon. 36. If the Moon is located at the vernal equinox on the first day of spring, what then is the phase of the Moon? (a) new 37. When will the first quarter moon rise, approximately? (b) noon

4 38. If an observer on Earth sees the Moon to be full, than at the same time an observer on the Moon would see Earth to be at what phase? (a) new 39. You are standing in the middle of the far side of the Moon. Which one of the following statements about what you can and cannot see would be true? (b) You could never see Earth from that location. 40. How does the Moon rotate to keep one face pointed toward Earth at all times? (a) It rotates once per month. 41. The term synodic month refers to the (b) time for a complete cycle of lunar phases. 42. The term sidereal month refers to the (d) time over which the Moon completes one orbit around Earth, relative to the stars. 43. During a lunar eclipse the (b) Earth comes between the Sun and the Moon. 44. During a total lunar eclipse (as viewed from Earth) you are standing on the Moon looking back at Earth. What do you see? (d) Earth appears as a black disk with only a faint glow around the edges. 45. A total lunar eclipse is visible in principle (assuming clear skies everywhere) (d) to everyone in one hemisphere of Earth. 46. The line of nodes of the Moon's orbit is the (b) line of intersection between the Moon's orbit and Earth's orbit (the ecliptic plane). 47. During a solar eclipse, the (d) Moon comes between Earth and the Sun. 48. There is about a 5 angle between the orbit of the Moon and the (b) plane of the ecliptic, or Earth's orbit. 49. Which of the following factors makes it far more likely that a person will have seen a total lunar eclipse than a total solar eclipse? (c) A total lunar eclipse can be seen by people on most of the nighttime side of Earth, while a specific total solar eclipse can be seen only by people within a narrow strip of Earth's surface. 50. Assuming clear skies everywhere, a total solar eclipse is visible (d) only to people in a long narrow path much smaller than a hemisphere.

5 51. Eratosthenes measured the radius of Earth by (d) noting the different angles of the Sun at midday on the same day of the year at different positions on Earth. 52. How did the ancient Greek astronomer Aristarchus of Samos determine that the Moon's diameter was about 1/3 that of Earth? (d) by measuring the time it takes the Moon to move through Earth's shadow during a lunar eclipse 53. What is the cause of an annular eclipse? (c) The Moon's position in its orbit is near apogee, its farthest point from Earth. 54. In about 280 B.C., Aristarchus devised a method of estimating the relative distance of the Sun and the Moon from Earth by (a) measuring the angle between the Sun and Moon when the Moon is at first or third quarter. 55. When observing planetary motions from Earth, the phrase retrograde motion refers to (d) a slow westward motion of the planet from night to night against the background stars. 56. Ptolemy's model for the solar system was (d) Earth-centered, with epicyclic planetary orbits. 57. In Ptolemy's description of the solar system, the deferent is (b) a circular path (around Earth) along which the center of a planet's epicycle moves. 58. The early Copernican system for planetary motions is (c) Sun-centered, with planets moving in perfect circles around the Sun. 59. When Mercury is at greatest elongation, what is the angle between the line from Earth to Mercury and the line from Mercury to the Sun? (b) What is the angle between the line from Earth to Jupiter and the line from Earth to the Sun when Jupiter is at opposition? (c) The synodic period of a planet is the time between (a) successive alignments of Sun, planet, and Earth (e.g., time between successive oppositions). 62. If a particular asteroid with a circular orbit is seen at opposition every 1.44 years, then its sidereal period is (d) 3.27 years.

6 63. What did Galileo see when he observed Venus through his telescope? (d) Venus has phases like the Moon and has its largest angular diameter at crescent phase. 64. Which of the following statements correctly states the significance of Galileo's observation that Jupiter has satellites (moons)? (b) It showed that bodies can orbit an object other than Earth. 65. Kepler's first law states that the orbit of a planet about the Sun is (c) an ellipse with the Sun at one focus. 66. According to Kepler's second law, an object in an elliptical orbit around the Sun is traveling fastest when it is at what position? (c) perihelion, closest point to the Sun 67. Which of the following statements is true, according to Kepler's third law? (c) The larger the orbit, the longer it takes for the planet to complete one revolution. 68. According to Newton's first law, (d) if no force is acting on an object, then the object's speed and direction of travel will both be constant. 69. Newton's second law states that acceleration produced by a force is (d) inversely proportional to the mass on which the force acts. 70. Which of the following statements is a correct version of Newton's third law? (c) Whenever object A exerts a force on some other object B, B must exert a force of equal magnitude on A in the opposite direction. 71. The phenomenon of parallax is the (b) change in apparent position of a nearby object as the observer moves. 72. Suppose an asteroid is discovered in an elliptical orbit with a period of exactly one year and at perihelion it is 0.5 AU from the Sun. How far from the Sun is this asteroid when at aphelion? (c) 1.5 AU 73. If the mass of the Sun were doubled, the gravitational force on Jupiter due to the Sun would be (b) twice its present value. 74. If the mass of the Sun were increased by a factor of four, the period of Jupiter s orbit around the Sun would be (a) half its present value.

7 75. Does the Sun or the Moon have a greater effect in causing the tides on Earth? (d) The Moon, because it has a larger difference between pulling on the near side and pulling on the far side of Earth.

### EDMONDS COMMUNITY COLLEGE ASTRONOMY 100 Winter Quarter 2007 Sample Test # 1

Instructor: L. M. Khandro EDMONDS COMMUNITY COLLEGE ASTRONOMY 100 Winter Quarter 2007 Sample Test # 1 1. An arc second is a measure of a. time interval between oscillations of a standard clock b. time

### Aphelion The point in the orbit of a planet or other celestial body where it is furthest from the Sun.

SKYTRACK Glossary of Terms Angular distance The angular separation between two objects in the sky as perceived by an observer, measured in angles. The angular separation between two celestial objects in

### Celestial Sphere. Celestial Coordinates. Lecture 3: Motions of the Sun and Moon. ecliptic (path of Sun) ecliptic (path of Sun)

Lecture 3: Motions of the and Moon ecliptic (path of ) ecliptic (path of ) The 23.5 degree tilt of Earth s spin axis relative to its orbital axis around the causes the seasons Celestial Sphere Celestial

### Astronomy 1140 Quiz 1 Review

Astronomy 1140 Quiz 1 Review Prof. Pradhan September 15, 2015 What is Science? 1. Explain the difference between astronomy and astrology. (a) Astrology: nonscience using zodiac sign to predict the future/personality

### Today FIRST HOMEWORK DUE NEXT TIME. Seasons/Precession Recap. Phases of the Moon. Eclipses. Lunar, Solar. Ancient Astronomy

Today FIRST HOMEWORK DUE NEXT TIME Seasons/Precession Recap Phases of the Moon Eclipses Lunar, Solar Ancient Astronomy How do we mark the progression of the seasons? We define four special points: summer

### The Four Seasons. A Warm Up Exercise. A Warm Up Exercise. A Warm Up Exercise. The Moon s Phases

The Four Seasons A Warm Up Exercise What fraction of the Moon s surface is illuminated by the Sun (except during a lunar eclipse)? a) Between zero and one-half b) The whole surface c) Always half d) Depends

### Today. Solstices & Equinoxes Precession Phases of the Moon Eclipses. Ancient Astronomy. Lunar, Solar FIRST HOMEWORK DUE NEXT TIME

Today Solstices & Equinoxes Precession Phases of the Moon Eclipses Lunar, Solar Ancient Astronomy FIRST HOMEWORK DUE NEXT TIME The Reason for Seasons Hypothesis check: How would seasons in the northern

### Solar System. 1. The diagram below represents a simple geocentric model. Which object is represented by the letter X?

Solar System 1. The diagram below represents a simple geocentric model. Which object is represented by the letter X? A) Earth B) Sun C) Moon D) Polaris 2. Which object orbits Earth in both the Earth-centered

### CELESTIAL CLOCK - THE SUN, THE MOON, AND THE STARS

INTRODUCTION CELESTIAL CLOCK - THE SUN, THE MOON, AND THE STARS This is a scientific presentation to provide you with knowledge you can use to understand the sky above in relation to the earth. Before

### What s going on during a solar eclipse. Solar Eclipses. Total Solar Eclipse on March 29, 2006 (viewed from Turkey) Partial, Total, and Annular

Solar Eclipses The Sun disappears behind the Moon The Moon is always in the New phase during a solar eclipse Can only be seen from certain places on Earth These events are even more rare than lunar eclipses

### 1-2. What is the name given to the path of the Sun as seen from Earth? a.) Equinox b.) Celestial equator c.) Solstice d.

Chapter 1 1-1. How long does it take the Earth to orbit the Sun? a.) one sidereal day b.) one month c.) one year X d.) one hour 1-2. What is the name given to the path of the Sun as seen from Earth? a.)

### CELESTIAL MOTIONS. In Charlottesville we see Polaris 38 0 above the Northern horizon. Earth. Starry Vault

CELESTIAL MOTIONS Stars appear to move counterclockwise on the surface of a huge sphere the Starry Vault, in their daily motions about Earth Polaris remains stationary. In Charlottesville we see Polaris

### 1 Newton s Laws of Motion

Exam 1 Ast 4 - Chapter 2 - Newton s Laws Exam 1 is scheduled for the week of Feb 19th Bring Pencil Scantron 882-E (available in the Bookstore) A scientific calculator (you will not be allowed to use you

### The Celestial Sphere. Questions for Today. The Celestial Sphere 1/18/10

Lecture 3: Constellations and the Distances to the Stars Astro 2010 Prof. Tom Megeath Questions for Today How do the stars move in the sky? What causes the phases of the moon? What causes the seasons?

### Exam # 1 Thu 10/06/2010 Astronomy 100/190Y Exploring the Universe Fall 11 Instructor: Daniela Calzetti

Exam # 1 Thu 10/06/2010 Astronomy 100/190Y Exploring the Universe Fall 11 Instructor: Daniela Calzetti INSTRUCTIONS: Please, use the `bubble sheet and a pencil # 2 to answer the exam questions, by marking

### Motions of Earth, Moon, and Sun

Motions of Earth, Moon, and Sun Apparent Motions of Celestial Objects An apparent motion is a motion that an object appears to make. Apparent motions can be real or illusions. When you see a person spinning

### Celestial Observations

Celestial Observations Earth experiences two basic motions: Rotation West-to-East spinning of Earth on its axis (v rot = 1770 km/hr) (v rot Revolution orbit of Earth around the Sun (v orb = 108,000 km/hr)

### OBJECT: To become familiar with some of the motions of the stars, Sun, Moon and planets as seen from the surface of the Earth.

INSIDE LAB 2: Celestial Motions OBJECT: To become familiar with some of the motions of the stars, Sun, Moon and planets as seen from the surface of the Earth. DISCUSSION: As seen from a point of view centered

### Lecture 13. Gravity in the Solar System

Lecture 13 Gravity in the Solar System Guiding Questions 1. How was the heliocentric model established? What are monumental steps in the history of the heliocentric model? 2. How do Kepler s three laws

### Chapter 3 The Science of Astronomy

Chapter 3 The Science of Astronomy Days of the week were named for Sun, Moon, and visible planets. What did ancient civilizations achieve in astronomy? Daily timekeeping Tracking the seasons and calendar

### Newton s Law of Gravity

Gravitational Potential Energy On Earth, depends on: object s mass (m) strength of gravity (g) distance object could potentially fall Gravitational Potential Energy In space, an object or gas cloud has

### Assignment 2. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

Assignment 2 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. What would you have to change about the Earth to stop our planet from having

### Periods of Western Astronomy. Chapter 1. Prehistoric Astronomy. Prehistoric Astronomy. The Celestial Sphere. Stonehenge. History of Astronomy

Periods of Western Astronomy Chapter 1 History of Astronomy Western astronomy divides into 4 periods Prehistoric (before 500 B.C.) Cyclical motions of Sun, Moon and stars observed Keeping time and determining

### Lab Activity on the Causes of the Seasons

Lab Activity on the Causes of the Seasons 2002 Ann Bykerk-Kauffman, Dept. of Geological and Environmental Sciences, California State University, Chico * Objectives When you have completed this lab you

### Earth-Sun Relationships. The Reasons for the Seasons

Earth-Sun Relationships The Reasons for the Seasons Solar Radiation The earth intercepts less than one two-billionth of the energy given off by the sun. However, the radiation is sufficient to provide

### Earth In Space Chapter 3

Earth In Space Chapter 3 Shape of the Earth Ancient Greeks Earth casts a circular shadow on the moon during a lunar eclipse Shape of the Earth Ancient Greeks Ships were observed to disappear below the

### Time, Day, Month, and the Moon

Time, Day, Month, and the Moon Announcements o First Homework will start on Tue Sept 20st; due on Thu, Sept 29th. o Accessible through SPARK Assigned Reading n Units 7 and 8 Goals for Today n To discuss

### Reasons for Seasons. Question: TRUE OR FALSE. Question: TRUE OR FALSE? What causes the seasons? What causes the seasons?

Reasons for Seasons Question: TRUE OR FALSE? Earth is closer to the Sun in summer and farther from the Sun in winter. Question: TRUE OR FALSE? Earth is closer to the Sun in summer and farther from the

### ASTRONOMY 161. Introduction to Solar System Astronomy

ASTRONOMY 161 Introduction to Solar System Astronomy Seasons & Calendars Monday, January 8 Season & Calendars: Key Concepts (1) The cause of the seasons is the tilt of the Earth s rotation axis relative

### ASTR 1030 Astronomy Lab 65 Celestial Motions CELESTIAL MOTIONS

ASTR 1030 Astronomy Lab 65 Celestial Motions CELESTIAL MOTIONS SYNOPSIS: The objective of this lab is to become familiar with the apparent motions of the Sun, Moon, and stars in the Boulder sky. EQUIPMENT:

### Note S1: Eclipses & Predictions

The Moon's Orbit The first part of this note gives reference information and definitions about eclipses [14], much of which would have been familiar to ancient Greek astronomers, though not necessarily

### From Aristotle to Newton

From Aristotle to Newton The history of the Solar System (and the universe to some extent) from ancient Greek times through to the beginnings of modern physics. The Geocentric Model Ancient Greek astronomers

### 1. In the diagram below, the direct rays of the Sun are striking the Earth's surface at 23 º N. What is the date shown in the diagram?

1. In the diagram below, the direct rays of the Sun are striking the Earth's surface at 23 º N. What is the date shown in the diagram? 5. During how many days of a calendar year is the Sun directly overhead

### Basic Coordinates & Seasons Student Guide

Name: Basic Coordinates & Seasons Student Guide There are three main sections to this module: terrestrial coordinates, celestial equatorial coordinates, and understanding how the ecliptic is related to

### Chapter 25.1: Models of our Solar System

Chapter 25.1: Models of our Solar System Objectives: Compare & Contrast geocentric and heliocentric models of the solar sytem. Describe the orbits of planets explain how gravity and inertia keep the planets

### Sun Earth Relationships

1 ESCI-61 Introduction to Photovoltaic Technology Sun Earth Relationships Ridha Hamidi, Ph.D. Spring (sun aims directly at equator) Winter (northern hemisphere tilts away from sun) 23.5 2 Solar radiation

### 8.5 Motions of Earth, the Moon, and Planets

8.5 Motions of, the, and Planets axis axis North Pole South Pole rotation Figure 1 s axis is an imaginary line that goes through the planet from pole-to-pole. orbital radius the average distance between

### Page. ASTRONOMICAL OBJECTS (Page 4).

Star: ASTRONOMICAL OBJECTS ( 4). Ball of gas that generates energy by nuclear fusion in its includes white dwarfs, protostars, neutron stars. Planet: Object (solid or gaseous) that orbits a star. Radius

### astronomy 2008 1. A planet was viewed from Earth for several hours. The diagrams below represent the appearance of the planet at four different times.

1. A planet was viewed from Earth for several hours. The diagrams below represent the appearance of the planet at four different times. 5. If the distance between the Earth and the Sun were increased,

### Motions of the Earth. Stuff everyone should know

Motions of the Earth Stuff everyone should know Earth Motions E W N W Noon E Why is there day and night? OR Why do the Sun and stars appear to move through the sky? Because the Earth rotates around its

### Night Sky III Planetary Motion Lunar Phases

Night Sky III Planetary Motion Lunar Phases Astronomy 1 Elementary Astronomy LA Mission College Spring F2015 Quotes & Cartoon of the Day Everything has a natural explanation. The moon is not a god, but

### Motion and Gravity in Space

Motion and Gravity in Space Each planet spins on its axis. The spinning of a body, such a planet, on its axis is called rotation. The orbit is the path that a body follows as it travels around another

### An Introduction to Astronomy and Cosmology. 1) Astronomy - an Observational Science

An Introduction to Astronomy and Cosmology 1) Astronomy - an Observational Science Why study Astronomy 1 A fascinating subject in its own right. The origin and Evolution of the universe The Big Bang formation

### A. 81 2 = 6561 times greater. B. 81 times greater. C. equally strong. D. 1/81 as great. E. (1/81) 2 = 1/6561 as great.

Q12.1 The mass of the Moon is 1/81 of the mass of the Earth. Compared to the gravitational force that the Earth exerts on the Moon, the gravitational force that the Moon exerts on the Earth is A. 81 2

### Name: Earth 110 Exploration of the Solar System Assignment 1: Celestial Motions and Forces Due in class Tuesday, Jan. 20, 2015

Name: Earth 110 Exploration of the Solar System Assignment 1: Celestial Motions and Forces Due in class Tuesday, Jan. 20, 2015 Why are celestial motions and forces important? They explain the world around

### Week 1-2: Overview of the Universe & the View from the Earth

Week 1-2: Overview of the Universe & the View from the Earth Hassen M. Yesuf (hyesuf@ucsc.edu) September 29, 2011 1 Lecture summary Protein molecules, the building blocks of a living organism, are made

### Earth, Moon and Sun Study Guide

Name/Number: Part A: Define the following terms: Earth, Moon and Sun Study Guide Date: satellite: an object that moves around another object in space; the moon is a satellite of the Earth orbit: the path

### FIRST GRADE 1 WEEK LESSON PLANS AND ACTIVITIES

FIRST GRADE 1 WEEK LESSON PLANS AND ACTIVITIES UNIVERSE CYCLE OVERVIEW OF FIRST GRADE UNIVERSE WEEK 1. PRE: Describing the Universe. LAB: Comparing and contrasting bodies that reflect light. POST: Exploring

### Exemplar Problems Physics

Chapter Eight GRAVITATION MCQ I 8.1 The earth is an approximate sphere. If the interior contained matter which is not of the same density everywhere, then on the surface of the earth, the acceleration

### Motions of Earth LEARNING GOALS

2 Patterns in the Sky Motions of Earth The stars first found a special place in legend and mythology as the realm of gods and goddesses, holding sway over the lives of humankind. From these legends and

### Understanding the motion of the Universe. Motion, Force, and Gravity

Understanding the motion of the Universe Motion, Force, and Gravity Laws of Motion Stationary objects do not begin moving on their own. In the same way, moving objects don t change their movement spontaneously.

### The following words and their definitions should be addressed before completion of the reading:

Seasons Vocabulary: The following words and their definitions should be addressed before completion of the reading: sphere any round object that has a surface that is the same distance from its center

### Newton s Law of Gravity

Newton s Law of Gravity Example 4: What is this persons weight on Earth? Earth s mass = 5.98 10 24 kg Mar s mass = 6.4191 10 23 kg Mar s radius = 3400 km Earth s radius = 6378 km Newton s Form of Kepler

### Relationship Between the Earth, Moon and Sun

Relationship Between the Earth, Moon and Sun Rotation A body turning on its axis The Earth rotates once every 24 hours in a counterclockwise direction. Revolution A body traveling around another The Earth

### Solar Angles and Latitude

Solar Angles and Latitude Objectives The student will understand that the sun is not directly overhead at noon in most latitudes. The student will research and discover the latitude ir classroom and calculate

### Aileen A. O Donoghue Priest Associate Professor of Physics

SOAR: The Sky in Motion y Life on the Tilted Teacup Ride Phases of the Moon Aileen A. O Donoghue Priest Associate Professor of Physics Kiva December 1997 October 27, 2009 Celestial Coordinates Right Ascension

### APS 1010 Astronomy Lab 63 Motions of the Moon MOTIONS OF THE MOON

APS 1010 Astronomy Lab 63 Motions of the Moon MOTIONS OF THE MOON SYNOPSIS: The objective of this lab is to become familiar with the motion of the Moon and its relation to the motions of the Sun and Earth.

### Tides and Water Levels

Tides and Water Levels What are Tides? Tides are one of the most reliable phenomena in the world. As the sun rises in the east and the stars come out at night, we are confident that the ocean waters will

### Chapter 13 Newton s Theory of Gravity

Chapter 13 Newton s Theory of Gravity Chapter Goal: To use Newton s theory of gravity to understand the motion of satellites and planets. Slide 13-2 Chapter 13 Preview Slide 13-3 Chapter 13 Preview Slide

### Moon Phases & Eclipses Notes

Moon Phases & Eclipses Notes Melka 2014-2015 The Moon The Moon is Earth s one natural satellite. Due to its smaller size and slower speed of rotation, the Moon s gravity is 1/6 of the Earth s gravitational

### The following questions refer to Chapter 19, (PAGES 259 278 IN YOUR MANUAL, 7 th ed.)

GEOLOGY 306 Laboratory Instructor: TERRY J. BOROUGHS NAME: Locating the Planets (Chapter 19) and the Moon and Sun (Chapter 21) For this assignment you will require: a calculator, colored pencils, a metric

### Tropical Horticulture: Lecture 2

Lecture 2 Theory of the Tropics Earth & Solar Geometry, Celestial Mechanics The geometrical relationship between the earth and sun is responsible for the earth s climates. The two principal movements of

### Planetary Orbit Simulator Student Guide

Name: Planetary Orbit Simulator Student Guide Background Material Answer the following questions after reviewing the Kepler's Laws and Planetary Motion and Newton and Planetary Motion background pages.

### Notes: Most of the material in this chapter is taken from Young and Freedman, Chap. 13.

Chapter 5. Gravitation Notes: Most of the material in this chapter is taken from Young and Freedman, Chap. 13. 5.1 Newton s Law of Gravitation We have already studied the effects of gravity through the

### Douglas Adams The Hitchhikers Guide to the Galaxy

There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.

### Worksheet Motion of the Sun and Moon

Worksheet Motion of the Sun and Moon Apparent Motion of the Sun 1. The Earth makes one complete orbit around the Sun in one year. From the point of view of someone on the Earth this makes the Sun appear

### Astronomy 10 Test #1 Practice Version

Given (a.k.a. `First ) Name(s): Family (a.k.a. `Last ) name: ON YOUR PARSCORE: `Bubble your name, your student I.D. number, and your multiple-choice answers. I will keep the Parscore forms. ON THIS TEST

### Understanding the motion of the Universe. Motion, Force, and Gravity

Understanding the motion of the Universe Motion, Force, and Gravity Laws of Motion Stationary objects do not begin moving on their own. In the same way, moving objects don t change their movement spontaneously.

### APS 1030 Laboratory 1 Motions of the Moon MOTIONS OF THE MOON

APS 1030 Laboratory 1 Motions of the Moon MOTIONS OF THE MOON SYNOPSIS: The objective of this lab is to become familiar with the motion of the Moon and its relation to the motions of the Sun and Earth.

### Name Period 4 th Six Weeks Notes 2015 Weather

Name Period 4 th Six Weeks Notes 2015 Weather Radiation Convection Currents Winds Jet Streams Energy from the Sun reaches Earth as electromagnetic waves This energy fuels all life on Earth including the

### Proffessor: J. C. Cersosimo

Proffessor: J. C. Cersosimo Objectives Student will: Recognize the Solar and Lunar calendar Demonstrate the how the Moon phases form Explain the main elements of an orbits Describe the orbit of the Earth

### LESSON 3 THE SOLAR SYSTEM. Chapter 8, Astronomy

LESSON 3 THE SOLAR SYSTEM Chapter 8, Astronomy OBJECTIVES Identify planets by observing their movement against background stars. Explain that the solar system consists of many bodies held together by gravity.

### Explain the Big Bang Theory and give two pieces of evidence which support it.

Name: Key OBJECTIVES Correctly define: asteroid, celestial object, comet, constellation, Doppler effect, eccentricity, eclipse, ellipse, focus, Foucault Pendulum, galaxy, geocentric model, heliocentric

### 1.1 A Modern View of the Universe" Our goals for learning: What is our place in the universe?"

Chapter 1 Our Place in the Universe 1.1 A Modern View of the Universe What is our place in the universe? What is our place in the universe? How did we come to be? How can we know what the universe was

### Chapter 5: Circular Motion, the Planets, and Gravity

Chapter 5: Circular Motion, the Planets, and Gravity 1. Earth s gravity attracts a person with a force of 120 lbs. The force with which the Earth is attracted towards the person is A. Zero. B. Small but

### Solar energy and the Earth s seasons

Solar energy and the Earth s seasons Name: Tilt of the Earth s axis and the seasons We now understand that the tilt of Earth s axis makes it possible for different parts of the Earth to experience different

### PHSC 3033: Meteorology Seasons

PHSC 3033: Meteorology Seasons Changing Aspect Angle Direct Sunlight is more intense and concentrated. Solar Incidence Angle is Latitude and Time/Date Dependent Daily and Seasonal Variation Zenith There

### The Analemma for Latitudinally-Challenged People

The Analemma for Latitudinally-Challenged People Teo Shin Yeow An academic exercise presented in partial fulfillment for the degree of Bachelor of Science with Honours in Mathematics Supervisor : Associate

### The Seasons on a Planet like Earth

The Seasons on a Planet like Earth As the Earth travels around the Sun, it moves in a giant circle 300 million kilometers across. (Well, it is actually a giant ellipse but the shape is so close to that

### Chapter 5 Astronomy 110 Motions of the Sun and the Moon 1

Chapter 5 Positions of the Sun and Moon Objects in our Solar System appear to move over the course of weeks to months because they are so close. This motion caused ancient astronomers to use the name planets,

### Stellar, solar, and lunar demonstrators

Stellar, solar, and lunar demonstrators Rosa M. Ros, Francis Berthomieu International Astronomical Union, Technical University of Catalonia (Barcelona, España), CLEA (Nice, France) Summary This worksheet

### The changing phases of the Moon originally inspired the concept of the month

The changing phases of the Moon originally inspired the concept of the month Motions of the Moon The Moon is in orbit around the Earth, outside the atmosphere. The Moon `shines via reflected light (12%)

Project ATMOSPHERE This guide is one of a series produced by Project ATMOSPHERE, an initiative of the American Meteorological Society. Project ATMOSPHERE has created and trained a network of resource agents

### Summary: The Universe in 1650

Celestial Mechanics: The Why of Planetary Motions Attempts to Describe How Celestial Objects Move Aristotle, Hipparchus, and Ptolemy: The Ptolemaic System Aristarchus, Copernicus, and Kepler: The Copernican

### Coordinate Systems. Orbits and Rotation

Coordinate Systems Orbits and Rotation Earth orbit. The earth s orbit around the sun is nearly circular but not quite. It s actually an ellipse whose average distance from the sun is one AU (150 million

### EARTH'S MOTIONS. 2. The Coriolis effect is a result of Earth's A tilted axis B orbital shape C revolution D rotation

EARTH'S MOTIONS 1. Which hot spot location on Earth's surface usually receives the greatest intensity of insolation on June 21? A Iceland B Hawaii C Easter Island D Yellowstone 2. The Coriolis effect is

### Study Guide due Friday, 1/29

NAME: Astronomy Study Guide asteroid chromosphere comet corona ellipse Galilean moons VOCABULARY WORDS TO KNOW geocentric system meteor gravity meteorite greenhouse effect meteoroid heliocentric system

### The Reasons for the Seasons

The Reasons for the Seasons (The Active Learning Approach) Materials: 4 Globes, One light on stand with soft white bulb, 4 flashlights, Four sets of "Seasons" Cards, Four laminated black cards with 1 inch

### Kepler, Newton and Gravitation

Kepler, Newton and Gravitation Kepler, Newton and Gravity 1 Using the unit of distance 1 AU = Earth-Sun distance PLANETS COPERNICUS MODERN Mercury 0.38 0.387 Venus 0.72 0.723 Earth 1.00 1.00 Mars 1.52

### Moon Phases and Eclipses

Lecture 11 Moon Phases and Eclipses Full Moon near Saturn The Moon will be full on Sunday, 4/17/11 so on Saturday and Sunday night it will be near Saturn, which reached opposition last week and, like the

### Name Class Date. true

Exercises 131 The Falling Apple (page 233) 1 Describe the legend of Newton s discovery that gravity extends throughout the universe According to legend, Newton saw an apple fall from a tree and realized

### Astrock, t he A stronomical Clock

Astrock, t he A stronomical Clock The astronomical clock is unlike any other clock. At first glance you ll find it has similar functions of a standard clock, however the astronomical clock can offer much

### Where on Earth are the daily solar altitudes higher and lower than Endicott?

Where on Earth are the daily solar altitudes higher and lower than Endicott? In your notebooks, write RELATIONSHIPS between variables we tested CAUSE FIRST EFFECT SECOND EVIDENCE As you increase the time

### Earth, Sun and Moon is a set of interactives designed to support the teaching of the QCA primary science scheme of work 5e - 'Earth, Sun and Moon'.

is a set of interactives designed to support the teaching of the QCA primary science scheme of work 5e - ''. Learning Connections Primary Science Interactives are teaching tools which have been created

### The Sun-Earth-Moon System. Unit 5 covers the following framework standards: ES 9, 11 and PS 1. Content was adapted the following:

Unit 5 The Sun-Earth-Moon System Chapter 10 ~ The Significance of Earth s Position o Section 1 ~ Earth in Space o Section 2 ~ Phases, Eclipses, and Tides o Section 3 ~ Earth s Moon Unit 5 covers the following

### Answers for the Study Guide: Sun, Earth and Moon Relationship Test

Answers for the Study Guide: Sun, Earth and Moon Relationship Test 1) It takes one day for the Earth to make one complete on its axis. a. Rotation 2) It takes one year for the Earth to make one around

### The Solar System. Unit 4 covers the following framework standards: ES 10 and PS 11. Content was adapted the following:

Unit 4 The Solar System Chapter 7 ~ The History of the Solar System o Section 1 ~ The Formation of the Solar System o Section 2 ~ Observing the Solar System Chapter 8 ~ The Parts the Solar System o Section