# Physics 130 Astronomy Exam #1 July 19, 2004

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 Physics 130 Astronomy Exam #1 July 19, 2004 Name Multiple Choice: 1. A scientist observes a new phenomenon that disagrees with his explanation or hypothesis. Following the scientific methods, he should a. discard the observation as erroneous. b. modify his hypothesis c. rejects those observations which do not agree with the theory d. wait until someone develops an adequate explanation before announcing his observation. 2. Which fundamental belief about the universe, established by the Greeks and adopted by the early Christian Church, was shattered by Galileo s observation of moons orbiting Jupiter? a. The belief that the Moon was the only moon orbiting around a planet in our solar system. b. The belief that everything in the universe orbits the Earth. c. The belief that everything in the universe orbits the Sun. d. The belief that everything in the visible universe must orbit the center of the Milky Way. 3. An Astronomical Unit (AU) is a. a unit of length, the average distances between the Sun and the Earth. b. a standard unit of length, defined as the wavelength of light from Krypton gas. c. a unit of time, equal to the time taken for the Earth to orbit the Sun once. d. a unit of mass, equal to one solar mass. 4. A light-year is a measure of a. arc length along an orbit b. time c. distance d. the expansion rate of the universe 1

2 5. An astronomer finds an object at a distance of 6.8 AU from the Earth. Which type of object is this likely to be? a. A comet in our solar system b. A distant galaxy c. A star in our Galaxy d. An artificial satellite orbiting the Earth. 6. How much of the overall sky is above the celestial equator, that is, in the northern hemisphere? a. More than one half, because of the precession of the poles b. Exactly one half c. All of it, by definition d. Less than one half, because of the tilt of the equator to the ecliptic plane 7. The zenith defines a direction a. toward the Sun at noon. b. vertically above a point on the equator. c. Vertically above the observer. d. Vertically above the North Pole. 8. The difference in declination angles between the North and South celestial poles is a. variable depending on the season b. 180 c d The nightly motion of objects across our sky is caused by a. the revolution of Earth around the Sun b. the rotation of the Earth on its axis c. the motion of the solar system around the galaxy d. the rotation of the whole celestial sphere of stars around the fixed earth 10. The Sun rises due East in the sky when viewed a. from any site upon Earth on the first day of summer and the first day of winter. b. from any site along the Earth s equator at midsummer and midwinter. c. from any site upon Earth ONLY on the first day of spring and the first day of fall. d. from any site on the equator on everyday of the year. 2

3 11. Over the period of one complete year, an observer at the South Pole would be able to see what fraction of the overall sky? a. 100% b. a variable amount, depending on his longitude c. a variable amount, depending upon which year d. 50% 12. If observed carefully night by night, a particular star will be seen to a. rise about 4 minutes earlier every night b. rise about 4 minutes later every night c. rise at a varying time every night, sometimes earlier, sometimes later than a specified time, because of the Earth s differing orbital speed d. rise at the same time every night 13. A time zone on the Earth, defined for convenience as that region over which civil time is the same at al locations, extends over what range of longitude, on average? a. 1 b. 15 c. 90 d Leap years, containing an extra day, are necessary because a. the Earth s speed of revolution around its orbit varies throughout the year b. the rotation rate of Earth around its axis varies, leading to days of different length c. the length of a year is not an exact number of days d. 365 days is not exactly divisible by The Sun s apparent path across our sky against the background stars (which would be seen if the sunlit sky were not light) is known as a. the great circle b. the ecliptic c. the celestial equator d. the celestial meridian 3

4 16. The Earth would not have seasons if a. its axis of rotation was perpendicular to its equatorial plane. b. the observer s vertical axis were perpendicular to the Earth s orbital plane c. its axis of rotation were perpendicular to its orbital plane d. its equatorial plane were perpendicular to its orbital plane 17. When the Sun is at one of its equinoxes a. the day is longer than the night in one hemisphere of the Earth and shorter in the other hemisphere. b. day and night are of equal length only for people on the equator c. people on the equator have perpetual daylight d. day and night are of equal length everywhere on the Earth 18. Precession is a. the slow coming motion of the spin of the Earth, similar to that of a spinning top b. another name for a parade. c. the motion of the Earth along its orbital path during the year. d. the daily spinning motion of the Earth, producing the apparent motion of the Sun and the stars. 19. At approximately what time will the new moon rise? a. Midnight b. Sunset c. Midday d. Close to sunrise 20. How much of the total surface of the Moon is illuminated by the Sun when it is at quarter phase? a. One quarter b. All of it c. One half d. Very little 4

5 21. A full moon will always be at its highest in our sky at about a. midday b. sunrise c. sunset d. midnight 22. How does the Moon rotate in order to keep one face pointed toward the Earth at all times, a. It does not rotate at all b. It rotates once per day c. It rotates once per year d. It rotates once per month 23. The Moon s path across our sky a. is confined to a band of sky around the ecliptic, the zodiac b. is always along the ecliptic plane, by definition c. can be anywhere in our sky d. is confined to regions north of the celestial equator. 24. What is the phase of the Moon during a total solar eclipse? a. Crescent b. First Quarter c. New d. Full 25. If the plane of the Moon s orbit were to be the same as the ecliptic plane, there would be a lunar eclipse a. once every month b. every day c. twice per month d. only twice per year 26. The Moon does not look completely dark when it is in the Earth s shadow during a total lunar eclipse because a. atmospheric refraction bends red solar light onto the Moon b. there is a remnant glow from the hot lunar surface c. there are faint emissions from the tenuous lunar atmosphere, excited by solar wind bombardment d. of light reflected from the clouds on the Earth, the earthshine 5

6 27. A person standing in the Moon s penumbra will see a. a total lunar eclipse b. a partial lunar eclipse c. a partial solar eclipse d. a total solar eclipse 28. The motions of the planets against the background stars in our sky can best be described as a. general eastward motions but with occasional stationary periods, with no motions at all. b. regular and uniform eastward motion c. regular patterns with general eastward motion interrupted by periods of westward motion. d. Regular patterns with general westward motion interrupted by periods of eastward motion. 29. In the geocentric model for the solar system developed by Ptolemy, to what does the word epicycle refer? a. The length of time from when the planet is furthest from Earth to the next time it is furthest from Earth. b. The large circle (orbit) which carries the planet around the Earth, while the planet itself is moving in a smaller circle. c. A small circle about which a planet moves while the center of this circle moves around the Earth. d. One complete cycle of planetary motions after which the motions repeat themselves (almost) exactly. 30. The Copernican System for planetary motions is a. Earth-centered, with the planets, sun, and stars mounted on crystal spheres, pivoted to allow the correct motions around the Earth. b. Earth-centered, with the planets moving in epicycles around the Earth. c. Sun-centered, with the planets moving in elliptical orbits, the sun being at one focus of the ellipse. d. Sun centered, with the planets moving in perfect circles around the sun. 6

7 31. The phenomenon of parallax is a. the change in apparent position of a nearby object as the observer moves, compared to background objects. b. The apparent change in angular size of an object as it moves toward or away from an observer. c. The change in direction of motion of a planet from retrograde to direct motion. d. The change in the apparent position of an object compared to background objects, as a result of the motion of the object. 32. Tycho Brahe a. developed the first detailed heliocentric model for the solar system, which replaced the geocentric model of Ptolemy. b. Improved the refracting telescope, which allowed him to extend Galileo s observations of the sky. c. Made accurate measurements of planetary motions, which Kepler later used to find the shapes of planetary orbits. d. Developed a reflecting telescope, which used a curved mirror to focus the light. 33. The major contribution of Johannes Kepler to the development of modern astronomy was to a. prove that planetary orbits are ellipses b. develop the first mathematical heliocentric model of the solar system c. use parallax to prove the Earth moves around the Sun. d. observe the satellites (moons) of Jupiter. 34. If an object has an orbit around the sun that has an eccentricity of 0.1, then the orbit is a. a straight line b. exactly circular c. almost circular, but not quite d. a long, thin ellipse 35. Where is a planet when it is moving most rapidly in its orbit? a. At aphelion b. At the focus of its orbit c. At perihelion d. approaching the closest distance to the sun 7

8 36. Kepler s third law, the harmonic law, provides a relationship between a planet s a. Orbital period and mass b. Orbital speed and orbital eccentricity c. Orbital eccentricity and length of semimajor axis d. Orbital period and length of semimajor axis 37. If a planet were to exist in our solar system in a circular orbit with a radius of 3 AU, about how long would it take to orbit the sun once? a. 5.2 years b. 27 years c. 3 years d. 2.1 years 38. What did Galileo see when he observed Venus through his telescope? a. Four satellites (moons) orbiting Venus b. Nothing interesting, since Venus is perpetually cloud covered c. A set of rings d. Phases like the Moon. 39. According to Newton s first law, a. as the rate of change of speed of an object is larger, the larger the force acting upon the object. b. an applied force always causes a change in the direction of travel of an object. c. if no force is acting upon an object then the object s speed and direction of travel will both be constant. d. an applied force always causes a change in the speed of an object. 40. Which path would a planet (like Earth) take if the force of gravity from the Sun were to be suddenly removed? a. The planet would begin to move in a long ellipse with the Sun at one focus. b. The planet would move in a straight-line outward, directly away from the Sun s position. c. The planet would move in a straight line tangential to its present orbit. d. The planet would stop moving altogether since there would now be no gravity acting upon it. 8

9 41. To specify an object s velocity completely, we need to specify a. its direction of travel b. its speed c. the rate of change of its acceleration d. its speed and direction of travel 42. An unbalanced force acting on an object will ALWAYS cause it to a. change its speed or its direction of travel or both b. change its speed c. change its direction of travel d. change its acceleration 43. According to Newton s third law, if a force is acting on an object then a. the object must move in a circular path b. there must be some other force also acting on the object, with the same magnitude but in the opposite direction c. the object must accelerate d. there must be some other force acting on a different object, with the same magnitude but in the opposite direction. 44. The strength of gravity on Mars in about 40% of that on the Earth. If you were to take a standard red brick to Mars, which property of the brick would be significantly different on Mars than on the Earth? a. Its weight b. Its volume c. Its color d. Its mass 45. Suppose that a planet of the same mass as the Earth were orbiting the Sun at a distance of 10 AU. The gravitational force on this planet due to the Sun would be a. 100 times that which the Sun exerts on the Earth b. 1/100 of that which the Sun exerts on the Earth c. 10 times that which the Sun exerts on the Earth d. 1/10 of that which the Sun exerts on the Earth 9

10 46. A person orbiting the Earth in the space station feels weightless because a. two forces are acting on her in opposite directions, so they cancel and produce the same effect as if no force at all were acting. b. only one force (gravity) acts on her, but gravity also accelerates the station so the station does not push up on her to create the feeling of weight. c. her mass is zero in space, and weight requires mass. d. no forces act on her. 47. Which objects are often found to follow parabolic orbits? a. Comets b. No objects all orbits have to be ellipses c. Asteroids d. Small satellites of the outer planets. 48. An object orbiting the sun in a circle can be said to be a. always accelerating b. moving under the action of equal and opposite forces c. moving at a constant velocity d. weightless 49. The purpose of describing planetary orbits in terms of epicycles and deferents was to account for a. the pattern of alternating direct and retrograde motion. b. the general motion of all objects toward the west in the sky each day. c. the fact that a planet s speed in its orbit is fastest when it is closest to the sun. d. the pattern of alternating conjunctions and oppositions. 50. The time period between two successive passages of a planet past a particular star as seen from the sun is a. its sidereal period b. its precessional period c. its synodic period d. its rotational period 10

11 11

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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.)

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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?

### 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

### 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

### 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

### 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,

### 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

### Halliday, Resnick & Walker Chapter 13. Gravitation. Physics 1A PHYS1121 Professor Michael Burton

Halliday, Resnick & Walker Chapter 13 Gravitation Physics 1A PHYS1121 Professor Michael Burton II_A2: Planetary Orbits in the Solar System + Galaxy Interactions (You Tube) 21 seconds 13-1 Newton's Law

### Halliday, Resnick & Walker Chapter 13. Gravitation. Physics 1A PHYS1121 Professor Michael Burton

Halliday, Resnick & Walker Chapter 13 Gravitation Physics 1A PHYS1121 Professor Michael Burton II_A2: Planetary Orbits in the Solar System + Galaxy Interactions (You Tube) 21 seconds 13-1 Newton's Law

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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

### 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.

### 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.

### 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.

### 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.

### 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

### 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

### Astronomy 110 Homework #04 Assigned: 02/06/2007 Due: 02/13/2007. Name:

Astronomy 110 Homework #04 Assigned: 02/06/2007 Due: 02/13/2007 Name: Directions: Listed below are twenty (20) multiple-choice questions based on the material covered by the lectures this past week. Choose

### 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

### 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

### 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%)

### Newton s Law of Universal Gravitation

Newton s Law of Universal Gravitation The greatest moments in science are when two phenomena that were considered completely separate suddenly are seen as just two different versions of the same thing.

### Study Guide: Solar System

Study Guide: Solar System 1. How many planets are there in the solar system? 2. What is the correct order of all the planets in the solar system? 3. Where can a comet be located in the solar system? 4.

### 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:

### 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

### Unit 8 Lesson 2 Gravity and the Solar System

Unit 8 Lesson 2 Gravity and the Solar System Gravity What is gravity? Gravity is a force of attraction between objects that is due to their masses and the distances between them. Every object in the universe

### 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

### Appropriate space vocabulary for Primary School

Appropriate space vocabulary for Primary School Stuff Looks like Gas Dust Rock Liquid Fatter (moon) Thinner (moon) Faster Slower Hot Cold Material Shape Straight at (an object) Direct (light) Indirect

### Vocabulary - Understanding Revolution in. our Solar System

Vocabulary - Understanding Revolution in Universe Galaxy Solar system Planet Moon Comet Asteroid Meteor(ite) Heliocentric Geocentric Satellite Terrestrial planets Jovian (gas) planets Gravity our Solar

### 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

### Lab 6: Kepler's Laws. Introduction. Section 1: First Law

Lab 6: Kepler's Laws Purpose: to learn that orbit shapes are ellipses, gravity and orbital velocity are related, and force of gravity and orbital period are related. Materials: 2 thumbtacks, 1 pencil,

### 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.

### 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

### MODULE P7: FURTHER PHYSICS OBSERVING THE UNIVERSE OVERVIEW

OVERVIEW More than ever before, Physics in the Twenty First Century has become an example of international cooperation, particularly in the areas of astronomy and cosmology. Astronomers work in a number

### CELESTIAL EVENTS CALENDAR APRIL 2014 TO MARCH 2015

CELESTIAL EVENTS CALENDAR APRIL 2014 TO MARCH 2015 *** Must See Event 2014 ***April 8 - Mars at Opposition. The red planet will be at its closest approach to Earth and its face will be fully illuminated

### 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

### 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

### Gravitation and Newton s Synthesis

Gravitation and Newton s Synthesis Vocabulary law of unviversal Kepler s laws of planetary perturbations casual laws gravitation motion casuality field graviational field inertial mass gravitational mass

### 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

### 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

### 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

### 5- Minute Refresher: Daily Observable Patterns in the Sky

5- Minute Refresher: Daily Observable Patterns in the Sky Key Ideas Daily Observable Patterns in the Sky include the occurrence of day and night, the appearance of the moon, the location of shadows and

### Cycles in the Sky. Teacher Guide: Cycles in the Sky Page 1 of 8 2008 Discovery Communications, LLC

Cycles in the Sky What is a Fun damental? Each Fun damental is designed to introduce your younger students to some of the basic ideas about one particular area of science. The activities in the Fun damental

### Chapter 13. Gravitation

Chapter 13 Gravitation 13.2 Newton s Law of Gravitation In vector notation: Here m 1 and m 2 are the masses of the particles, r is the distance between them, and G is the gravitational constant. G = 6.67

### 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

### AE554 Applied Orbital Mechanics. Hafta 1 Egemen Đmre

AE554 Applied Orbital Mechanics Hafta 1 Egemen Đmre A bit of history the beginning Astronomy: Science of heavens. (Ancient Greeks). Astronomy existed several thousand years BC Perfect universe (like circles

### 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)

### Exercise: Estimating the Mass of Jupiter Difficulty: Medium

Exercise: Estimating the Mass of Jupiter Difficulty: Medium OBJECTIVE The July / August observing notes for 010 state that Jupiter rises at dusk. The great planet is now starting its grand showing for

### Answer Sheet. Astronomy. Your ES Teacher: Name. Spring School 2015. Page 7 Page 9 Page 10 #3) #5) #29) #39) #52) #40) #66) Tide height: #45) Time:

Your ES Teacher: Date: ( M W Th ) Astronomy CIRCLE ONE Answer Sheet Page 7 Page 9 Page 10 Name Spring School 2015 #3) #5) #29) Page 8 #36) #37) #38) #39) #40) #45) #46) #47) #52) #66) Tide height: Time:

### Local Sidereal Time is the hour angle of the First Point of Aries, and is equal to the hour angle plus right ascension of any star.

1 CHAPTER 7 TIME In this chapter we briefly discuss the several time scales that are in use in astronomy, such as Universal Time, Mean Solar Time, Ephemeris Time, Terrestrial Dynamical Time, and the several

### 1 The Nine Planets. What are the parts of our solar system? When were the planets discovered? How do astronomers measure large distances?

CHAPTER 4 1 The Nine Planets SECTION A Family of Planets BEFORE YOU READ After you read this section, you should be able to answer these questions: What are the parts of our solar system? When were the

### The Motions of Celestial Bodies, and Newton s Laws of Motion

The Motions of Celestial Bodies, and Newton s Laws of Motion Announcements The results of Quiz 1 are posted in OWL Looking ahead: Homework 1 is on-going, and is due on Thu, Sept. 29 th ; Homework 2 will

### Geography I Pre Test #1

Geography I Pre Test #1 1. The sun is a star in the galaxy. a) Orion b) Milky Way c) Proxima Centauri d) Alpha Centauri e) Betelgeuse 2. The response to earth's rotation is a) an equatorial bulge b) polar

### Science Standard 4 Earth in Space Grade Level Expectations

Science Standard 4 Earth in Space Grade Level Expectations Science Standard 4 Earth in Space Our Solar System is a collection of gravitationally interacting bodies that include Earth and the Moon. Universal

### 3 Phases of the Moon. 3.1 Introduction. Name(s): Date:

Name(s): Date: 3 Phases of the Moon 3.1 Introduction Every once in a while, your teacher or TA is confronted by a student with the question Why can I see the Moon today, is something wrong?. Surprisingly,

### 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

### 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