Universal Gravitation
... Scientists then observed that Uranus’s path was abnormal It seemed to respond to the pull of another distant but unknown body Using mathematical analysis, scientists predicted where the unknown body would have to be and began searching for it In 1846, scientists discovered the planet Neptune ...
... Scientists then observed that Uranus’s path was abnormal It seemed to respond to the pull of another distant but unknown body Using mathematical analysis, scientists predicted where the unknown body would have to be and began searching for it In 1846, scientists discovered the planet Neptune ...
1 Timeline 2 Geocentric model
... • Ptolemy invented the device called the eccentric • The eccentric is the center of the deferent • Sometimes the eccentric was slightly off center from the center of the Earth Ptolemy’s Geocentric Model • Uniform circular motion could not account for speed of the planets thus Ptolemy used a device c ...
... • Ptolemy invented the device called the eccentric • The eccentric is the center of the deferent • Sometimes the eccentric was slightly off center from the center of the Earth Ptolemy’s Geocentric Model • Uniform circular motion could not account for speed of the planets thus Ptolemy used a device c ...
Inferior planets.
... Using these three laws and Kepler’s Laws, Newton was able to explain the motion of the planets in terms of forces operating and masses involved. This is called dynamics, as opposed to what Kepler did, kinematics, a description of motion. Newton’s starting assumption: there is some kind of force of a ...
... Using these three laws and Kepler’s Laws, Newton was able to explain the motion of the planets in terms of forces operating and masses involved. This is called dynamics, as opposed to what Kepler did, kinematics, a description of motion. Newton’s starting assumption: there is some kind of force of a ...
UNIVERSAL GRAVITATION
... relative sizes of the planetary orbits was known but not their absolute sizes. Example: Rmars/Rearth = 1.52 In 1672 French astronomers triangulated Mars when in opposition, observing it from Paris and Cayenne at the same time. Result: Earth-Sun distance = 87 million miles (modern value = 93 million ...
... relative sizes of the planetary orbits was known but not their absolute sizes. Example: Rmars/Rearth = 1.52 In 1672 French astronomers triangulated Mars when in opposition, observing it from Paris and Cayenne at the same time. Result: Earth-Sun distance = 87 million miles (modern value = 93 million ...
Exam Name___________________________________
... 10) According to Copernicus, the retrograde motion for Mars must occur A) at quadrature, when Mars lies exactly 90 degrees east or west of the Sun. B) at greatest elongation, when Mars can get up to 47 degrees from the Sun. C) at opposition, when the Earth overtakes Mars and passes between Mars and ...
... 10) According to Copernicus, the retrograde motion for Mars must occur A) at quadrature, when Mars lies exactly 90 degrees east or west of the Sun. B) at greatest elongation, when Mars can get up to 47 degrees from the Sun. C) at opposition, when the Earth overtakes Mars and passes between Mars and ...
Planets or other objects orbiting a star are accelerating
... To observe Kepler’s and Newton's laws INTRODUCTION Planets or other objects orbiting a star are accelerating -- they are continually changing direction. The force that produces this acceleration is the gravitational attraction to the star. PROCEDURE Go to http://phet.colorado.edu, click on “play w ...
... To observe Kepler’s and Newton's laws INTRODUCTION Planets or other objects orbiting a star are accelerating -- they are continually changing direction. The force that produces this acceleration is the gravitational attraction to the star. PROCEDURE Go to http://phet.colorado.edu, click on “play w ...
Celestial Objects
... Precession 6 – The Earth behaves somewhat like a spinning top, causing the axis of rotation to trace out a circle. This slow conical motion of the Earth’s axis of rotation is called precession, and is due to the gravitational effects of the Sun and Moon on the Earth’s equatorial bulge. Precession sl ...
... Precession 6 – The Earth behaves somewhat like a spinning top, causing the axis of rotation to trace out a circle. This slow conical motion of the Earth’s axis of rotation is called precession, and is due to the gravitational effects of the Sun and Moon on the Earth’s equatorial bulge. Precession sl ...
Document
... the top of Mt. Everest in a direction tangent to the ground. If the initial speed were high enough to cause the ball to travel in a circular trajectory around Earth Earth, the ball’s ball s acceleration would – a) be much less than g (because the ball doesn’t fall to the ground). Note: someone in a ...
... the top of Mt. Everest in a direction tangent to the ground. If the initial speed were high enough to cause the ball to travel in a circular trajectory around Earth Earth, the ball’s ball s acceleration would – a) be much less than g (because the ball doesn’t fall to the ground). Note: someone in a ...
Sample Exam 1
... 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. 19. What are the main constituents of the jovian planets? a. rocky minerals an dwat ...
... 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. 19. What are the main constituents of the jovian planets? a. rocky minerals an dwat ...
Ch6-2014-P
... apple fall from a tree and realized that if the gravitational force could extend above the ground to a tree, it might also reach the Sun. The inspiration of Newton’s apple is a part of worldwide folklore and may even be based in fact. Great importance is attached to it because Newton’s universal law ...
... apple fall from a tree and realized that if the gravitational force could extend above the ground to a tree, it might also reach the Sun. The inspiration of Newton’s apple is a part of worldwide folklore and may even be based in fact. Great importance is attached to it because Newton’s universal law ...
"WITH THE STARS" i - Royal Astronomical Society of Canada
... of the most interesting objects for the amateur astronomer with a small telescope. Saturn, at an average distance of 886 million miles from the Sun, takes nearly 30 years to complete one revolution. Second only to Jupiter in size, it is 72,000 miles in diameter and weighs about 95 times as much as E ...
... of the most interesting objects for the amateur astronomer with a small telescope. Saturn, at an average distance of 886 million miles from the Sun, takes nearly 30 years to complete one revolution. Second only to Jupiter in size, it is 72,000 miles in diameter and weighs about 95 times as much as E ...
Measuring the diameter of our star teacher notes
... It is probably best to have the procedure as a floating exercise that could be used at some point in a course when it happens to be sunny. Get the students to rub out their pencil marks on the cards so that they can be reused. The distance to the Sun was first calculated by trigonometry. The mathema ...
... It is probably best to have the procedure as a floating exercise that could be used at some point in a course when it happens to be sunny. Get the students to rub out their pencil marks on the cards so that they can be reused. The distance to the Sun was first calculated by trigonometry. The mathema ...
Lec4_2D
... Example of Gravity – Tides The effects of gravity do not depend on the composition of a body, just its mass and distance. The Moon exerts a force on the Earth, but since the Earth has a finite size, this force is different from one side of the Earth to the other. The side of the Earth near the Moon ...
... Example of Gravity – Tides The effects of gravity do not depend on the composition of a body, just its mass and distance. The Moon exerts a force on the Earth, but since the Earth has a finite size, this force is different from one side of the Earth to the other. The side of the Earth near the Moon ...
Gravitation and Rotational Motion
... p.s. (multiply by sin theta if used at an angle) Newton’s Second Law for Rotational Motion: states that angular acceleration is directly proportional to the net torque and inversely proportional to the moment of inertia. Center of Mass- this is the point on an object that moves in the same way that ...
... p.s. (multiply by sin theta if used at an angle) Newton’s Second Law for Rotational Motion: states that angular acceleration is directly proportional to the net torque and inversely proportional to the moment of inertia. Center of Mass- this is the point on an object that moves in the same way that ...
Moons and Small Solar System Bodies Sections 17.1-17.6
... Parts of a Comet • A comet consists of four parts • Nucleus – typically a few kilometers in diameter and composed of rocky or metallic material • Coma (head) – surrounds the nucleus. Several hundred kilometers in diameter. Formed from the nucleus as it approaches 5AU of the Sun. • Tail – long and v ...
... Parts of a Comet • A comet consists of four parts • Nucleus – typically a few kilometers in diameter and composed of rocky or metallic material • Coma (head) – surrounds the nucleus. Several hundred kilometers in diameter. Formed from the nucleus as it approaches 5AU of the Sun. • Tail – long and v ...
of universal gravitation and of
... the proper range for their orbits to be of elliptical nature. The Second Law-Law of Equal Areas In deriving the law of equal areas, two methods are used. The first method is that undertaken by Newton in his Principia. The second method is done with use of the calculus. The first method is taken dire ...
... the proper range for their orbits to be of elliptical nature. The Second Law-Law of Equal Areas In deriving the law of equal areas, two methods are used. The first method is that undertaken by Newton in his Principia. The second method is done with use of the calculus. The first method is taken dire ...
January 2007 - Western Nevada Astronomical Society
... two successive meridian transits by the Sun. A sidereal day is 23 hours, 56 minutes, 4 seconds long, the length it takes a star to cross your meridian two times successively. A solar day is about 4 minutes longer than a sidereal day because while the Earth rotates on its axis it also moves along in ...
... two successive meridian transits by the Sun. A sidereal day is 23 hours, 56 minutes, 4 seconds long, the length it takes a star to cross your meridian two times successively. A solar day is about 4 minutes longer than a sidereal day because while the Earth rotates on its axis it also moves along in ...
850616SemStudyGuide_AstSns
... continued to "stay" with Jupiter even though Jupiter moved through space. Therefore, he thought, that means that Earth could move through space and it's moon would "follow" it as the planet moved. 2. Briefly describe the major astronomical discoveries of Brahe, Newton, Kepler and Hubble. Brahe: Made ...
... continued to "stay" with Jupiter even though Jupiter moved through space. Therefore, he thought, that means that Earth could move through space and it's moon would "follow" it as the planet moved. 2. Briefly describe the major astronomical discoveries of Brahe, Newton, Kepler and Hubble. Brahe: Made ...
The celestial sphere, the coordinates system, seasons, phases of
... surface, no more than 270 km diameter. Because the Earth and the Moon are moving, this area drift across the Earth’s surface and may cover a total of 7,000 km. An observer located inside this strip will see a total solar eclipse. Partial solar eclipse: If the observer is located in the penumbral par ...
... surface, no more than 270 km diameter. Because the Earth and the Moon are moving, this area drift across the Earth’s surface and may cover a total of 7,000 km. An observer located inside this strip will see a total solar eclipse. Partial solar eclipse: If the observer is located in the penumbral par ...
Longitude by the Method of Lunar Distance
... every four seconds, steadily ticking off as the world turns. Even the best pendulum clocks could not keep time on a tossing ship, and early mariners could only estimate their longitude by dead reckoning. Columbus, although he made contributions to navigation, had a particularly poor concept of longi ...
... every four seconds, steadily ticking off as the world turns. Even the best pendulum clocks could not keep time on a tossing ship, and early mariners could only estimate their longitude by dead reckoning. Columbus, although he made contributions to navigation, had a particularly poor concept of longi ...
Lecture 4 (pdf from the powerpoint)
... • The four fundamental forces are all important in making the Universe, but gravitation is most important. This is because of two of its basic properties that set it apart from the other forces: 1) it is long-ranged and thus can act over cosmological ...
... • The four fundamental forces are all important in making the Universe, but gravitation is most important. This is because of two of its basic properties that set it apart from the other forces: 1) it is long-ranged and thus can act over cosmological ...
The Night Sky This Month - Usk Astronomical Society
... Mercury is at inferior conjunction on the 14th and is best observed very early in the month following the Sun down, or very late in the month rising just before the Sun; with the added advantage that it is above the ecliptic. Venus is best observed early in the month when its elongation is largest. ...
... Mercury is at inferior conjunction on the 14th and is best observed very early in the month following the Sun down, or very late in the month rising just before the Sun; with the added advantage that it is above the ecliptic. Venus is best observed early in the month when its elongation is largest. ...
Mar - Wadhurst Astronomical Society
... electrons, rather than water, and did not evolve oxygen Many significant factors were essential to life as we know it, such as a stable sun, the presence of suitable elements, the right amount of gravity to retain the atmosphere and we are in what is known as the habitable zone where we orbit the Su ...
... electrons, rather than water, and did not evolve oxygen Many significant factors were essential to life as we know it, such as a stable sun, the presence of suitable elements, the right amount of gravity to retain the atmosphere and we are in what is known as the habitable zone where we orbit the Su ...