EARTH SCIENCE MRS. DAVIS

Slides:

Advertisements

Similar presentations

Kepler’s laws.

Advertisements

Early Astronomers & Planetary Motion

Famous Astronomers. Ptolemy Thought the Earth was at the center of the universe and that the other planets revolved around it (GEOcentric model) Thought.

Geocentric Model Earth is center of our Solar System

Models of the Solar System. The observations that you have been making of the Sun, Moon and stars were the same observations made by early scientists.

ASTRONOMY 161 Introduction to Solar System Astronomy Class 6.

MODELS OF THE SOLAR SYSTEM. ARISTOTLE Greek philosopher ( BC) He promoted an earth centered called geocentric, model of solar system He said the.

Bell Ringer 9/8 OPINION QUESTION – How do you believe the solar system was formed?

Chapter 2: The Rise of Astronomy. Ancient Roots: Early Homo-Sapiens.

The History of Astronomy brought to you by: Mr. Youngberg.

History of Astronomy. Our Universe Earth is one of nine planets that orbit the sun The sun is one star in 100 billion stars that make up our galaxy- The.

Astronomy The Science that Studies The Universe Ancient Greeks To Isaac Newton.

Chapter 2 The Copernican Revolution. Units of Chapter Ancient Astronomy 2.2 The Geocentric Universe 2.3 The Heliocentric Model of the Solar System.

SPACE SCIENCE UNIT 2 LESSON 1 Historical Modes of the Solar System.

Chapter 2 The Copernican Revolution. Chapter 2 Learning Objectives  Know the differences and similarities between the geocentric and heliocentric models.

Astronomy  Astronomy is the study of the planets and other objects in space.  The “Golden Age of Astronomy” occurred during 600 – 150 B.C. when the ancient.

Ch. 22 Origin of Modern Astronomy Sec. 1 Early Astronomy 200.

EARTH & SPACE SCIENCE Chapter 27 Planets of the Solar System 27.2 Models of the Solar System.

Ch. 29 Sec. 1 Overview of Solar System. Early Ideas  Humans have watched the sky for thousands of years  Planets change position relative to the stars.

“Intro to Astronomy” §Terms You Need To Know! 1. Astronomy- The study of everything outside of the earth’s atmosphere. 2. Celestial Sphere - Imaginary.

Ch 22 Astronomy. Ancient Greeks 22.1 Early Astronomy  Astronomy is the science that studies the universe. It includes the observation and interpretation.

Kepler’s Laws of planetary motion Newton’s law of universal gravitation Free fall acceleration on surface of a planet Satellite motion Lecture 13: Universal.

Chapter 1 The Copernican Revolution. The planets’ motions Wanderers among the stars Retrograde motion.

History of Astronomy How have ideas about the solar system and our place in it changed over time? How have ideas about the solar system and our place.

Kepler’s Three Laws of Planetary Motion. YMXtohttp:// YMXto.

KEPLER’S LAWS OF PLANETARY MOTION Objective: I will summarize Kepler’s three laws of planetary motion. 11/10/15.

Modern Day Astronomers (sort of) The New Guys. The Astronomers Copernicus Galileo Tycho Brahe Johannes Kepler Sir Isaac Newton.

Historical Models of our Solar System and Kepler’s Laws of Planetary Motion.

Ancient Greeks Early Astronomy  Astronomy is the science that studies the universe. It includes the observation and interpretation of celestial bodies.

Bellwork 1.Who is credited with the revolutionary model of a HELIOCENTRIC solar system? A. Aristotle B. Ptolemy C. Galileo D. Copernicus 2.The planets.

PHYS 155 – Introductory Astronomy observing sessions: - observing sessions: Sunday – Thursday, 9pm, weather permitting

Starter 1.What is astronomy? 2.The movement around the sun is ______. 3.The movement around an axis is____. 4.Compare and contrast global warming and greenhouse.

Observing the Solar System A History. Geocentric Model Early astronomers believed that Earth was actually the center of the universe. As early as 6000.

Kepler’s Three Laws of Planetary Motion

CHAPTER 2: Gravitation and the Waltz of the Planets.

From Aristotle to Newton

Formation of the Solar System

Origin of Modern Astronomy

MODELS OF THE SOLAR SYSTEM

Chatfield Senior High Physics

Science Starter Answer the following in your notebook: 1. When is the Earth closest to the Sun? 2. Does the speed of the Earth’s revolution change? 3.

Origin of Modern Astronomy

22.1 Early Astronomy.

History of our Knowledge of the Solar System

Ch. 22: Astronomers Mr. Litaker 11/10/2018.

Models of Motions in Our Sky

What is the universe Part 2 Motion in Space

Section 2: Models of the Solar System

Kepler and Planetary Motion

Solar System Overview.

Models of the Solar System

Origins of Modern Astronomy

A History of Astronomy Ptolemy ( AD ) geocentric theory.

The Laws of Planetary Motion

Origin of Modern Astronomy

Classical Astronomy Introduction

LESSON 12: KEPLER’S LAWS OF PLANETARY MOTION

Lesson 2 Models of the Universe

Planetary Motion Intro Video.

CHAPTER 27.2: Gravitation and the

Nicolaus Copernicus Johannes Kepler Tycho Brahe

Aim: How do we compute Eccentricity?

Models of Motions in Our Sky

Kepler’s Laws of Planetary Motion

Planetary Motion.

History of Modern Astronomy

Periods of Western Astronomy

Chapter 2 Sections

Kepler’s Three Laws of Planetary Motion

Presentation transcript:

EARTH SCIENCE MRS. DAVIS The Universe EARTH SCIENCE MRS. DAVIS

Our View of the Cosmos Astronomy has seen 3 scientific revolutions in cosmology… 2nd Century: Claudius Ptolemy (Physics of Aristotle) Geocentric: Earth-centered model of the universe 16th Century: Nicolaus Copernicus (Physics of Newton) Heliocentric: Sun-centered model of the universe 20th Century: Edwin Hubble (Physics of Einstein) Big Bang Cosmology

Geocentric Model

What’s wrong with this idea? The geocentric model couldn’t explain retrograde motion. Planets like Mars look like they drift from side to side.

Retrograde Motion

Heliocentric Model

New(ish) Ideas -- Brahe 1546-1601 Didn’t believe the heliocentric model Stars should demonstrate parallax Apparent shift in position

New(ish) Ideas -- Kepler 1571-1630 Developed 3 laws of planetary motion

Kepler’s 1st Law Orbits are shaped like an ellipse with sun as one focus Perihelion-closest to the sun Aphelion- farthest from the sun Major Axis Minor (semi-major) axis Keplers 1st Law

Ellipse

Ellipse

Kepler’s 2nd Law A planet sweeps out an equal area in equal time no matter how fast it is moving. https://youtu.be/qd3dIGJqRDU

Kepler’s 2nd Law

Kepler’s 3rd Law The farther away a planet is from the sun, the longer it takes for one complete period. 1 astronomical unit (1 AU) is the average distance from sun to Earth https://youtu.be/KbXVpdlmYZo

New(ish) Ideas -- Galileo Created telescope Observed Jupiter’s moons Saw planets are spheres Moon surface Sun spots House arrest http://www.youtube.com/watch?v=-mwKEmqK8dI http://www.youtube.com/watch?v=RIRs6fwRjpM

New(ish) Ideas -- Newton 1642-1727 Law of Universal Gravitation: Gravity keeps planets from flying away Mass is proportional (Mass goes up, gravitational force goes up) Longer the radius, weaker the gravitational pull.