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No Slide Title
No Slide Title

... The Gas Giants, continued • Saturn has the most extensive ring system. – Saturn is 95 times the mass of the Earth and takes over 29 y to orbit the sun. It rotates in 10.7 h. – Saturn’s rings are narrow bands of tiny particles of dust, rock, and ice. – Saturn has more than 40 satellites. • Saturn may ...
Our Solar System and its Origin
Our Solar System and its Origin

... Giotto was the first to take close up photos of a comet; the Giotto spacecraft flew by both comet Halley in 1986 and comet Grigg-Skjellerup in 1992. ESA operates three different missions currently that study the Sun and various solar phenomena that affect Earth. In 2005, after the Cassini spacecraft ...
Lecture 3
Lecture 3

... objects hit the surface at high speeds. At such high speeds, the impact releases enough energy to vaporize solid rock and form a crater. Debris shoots high enough above the surface and rains down over a large area. If the impact is large enough, some of the ejected material can completely escape fro ...
Ch 21 Directed Reading Pg 644 – 673
Ch 21 Directed Reading Pg 644 – 673

... 23. What makes Io so volcanically active? a. Io is larger than Jupiter. b. Io has underground oceans. c. Jupiter and Europa keep tugging on Io. d. Io’s inner core is cooling too quickly. 24. What suggests that Europa might contain life? a. Europa’s surface is rocky. ...
planets - The Solar System WebQuest
planets - The Solar System WebQuest

... We have made these Solar System Charts as A4 size for each section. Normally I would glue or tape the 2 sections together to form an A3 size chart for each planet. If this is too big for you - just change your printer settings in ‘properties’ - ‘page layout’ - 2 in 1 or even smaller 4 in 1. ...
Chapter 19.3 Student Study Guide
Chapter 19.3 Student Study Guide

... Describe the current theory of how the Earth’s moons formed. • While Earth was still in its molten stage, it was struck by a Mars-sized body. A large part of Earth’s mantle was blasted into space and along with debris from the impacting body formed the moon. ...
Jeopardy for solar System overview
Jeopardy for solar System overview

... Heaavier elements compared to Jovian such as carbon dioxide, nitrogen, and water ...
Lecture 11
Lecture 11

... 1. The moon orbits the Earth. Therefore, some real force on the moon must be responsible for its acceleration. That force is the gravitational force exerted by the Earth. 2. The weight of any object on Earth is really the gravitational force exerted by the Earth on that object. 3. Therefore, we can ...
Gravitation - courses.psu.edu
Gravitation - courses.psu.edu

... tells us: F = GMm/R2. For all objects at Earth's surface, R (Earth's radius) is the same, as is the mass of Earth (M). So, the gravitational force law tells us that the force which accelerates an object toward Earth is porportional to that object's mass: when the mass doubles, the force doubles; whe ...
WHAT ELSE IS OUT THERE BESIDES THE PLANETS
WHAT ELSE IS OUT THERE BESIDES THE PLANETS

... The word meteor is used to describe the streak of light produced as a rock in the solar system falls into Earth's atmosphere creating temporary light as a result of the friction between the atmosphere and the object. This typically occurs at heights of 50 to 68 miles above Earth's surface. Meteors a ...
Planetary Interiors
Planetary Interiors

... • The gravity field of a planet, i.e. the gravitational force it exerts on an external body, depends on the planet’s internal mass distribution • the main factors affecting the gravity field are a planet’s shape, internal mass distribution and rotation. • Measurements of the gravitational field of a ...
South Eastern School District Science Curriculum Astronomy
South Eastern School District Science Curriculum Astronomy

... D. Discuss the benefits of modern observatories. E. Interpret the observational data of different radio telescopes. EARTH A. Develop an understanding of rotation and revolution and their effects. B. Describe the surface, interior, atmosphere, and the evolution of the Earth. C. Relate the magnetosphe ...
Ch. 6
Ch. 6

... Now known: Solar system has 166 moons, one star, eight planets (added Uranus & Neptune), many objects in the new class called dwarf planets (Pluto, Ceres, Eris, …), asteroids, comets, and meteoroids ...
class 3, S11 (ch. 2b 1-18-11)
class 3, S11 (ch. 2b 1-18-11)

... • The Earth’s axis precesses (wobbles) like a top, once about every 26,000 years. • Precession changes the positions in the sky of the celestial poles and the equinoxes.  Polaris won't always be the north star.  However the tilt in the axis is the same (23.5 degrees) as the Earth’s axis precesses ...
THE Planets - mad4scienceandalittlemathtoo
THE Planets - mad4scienceandalittlemathtoo

... Saturn travels around the sun in an elliptical (oval-shaped) orbit. Its distance from the sun varies from about 941,070,000 miles (1,514,500,000 kilometers) at its farthest point to about 840,440,000 miles (1,352,550,000 kilometers) at its closest point. The planet takes about 10,759 Earth days, or ...
Readers_Theatre_-_Solar_System_key
Readers_Theatre_-_Solar_System_key

... Earth (interrupting): People used to think that you (points to Sun), the Moon and these other guys (pointing to other planets) orbited me. But then that darn scientist Johannes Kepler ...
Lecture 1 Forces on a rotating planet Lecture 2 We will describe the
Lecture 1 Forces on a rotating planet Lecture 2 We will describe the

... 1. An air parcel is moving westward at 2 ms-1 along the equator. What is the centrifugal force per unit mass acting on it due to the rotation of the Earth, and what fraction of gravity is this? What is the northward component of any Coriolis acceleration? 2. A train engine with a mass of 2 x 105 kg ...
theory comes unstuck! - Creation Resources Trust
theory comes unstuck! - Creation Resources Trust

... form in the hotter region near their star, and lighter “gas giants” further out. But these “hot Jupiters” are large planets which are very near their star, and, as their name suggests, unlike the gas giants in our solar system they are very hot. Some astronomers have suggested that they must have fo ...
Carbon dioxide on other planets
Carbon dioxide on other planets

... temperature. Liquid condenses from the atmospheric vapor, that is, it rains, and additional water accretion gives more and more rain, leading to river formation and oceans, but not to more atmospheric pressure. Earth's atmosphere, notable by comparison to the other two planets, is different...fortu ...
3. 1 Astronomy before Copernicus 3. 2 Nicolaus Copernicus 3. 3
3. 1 Astronomy before Copernicus 3. 2 Nicolaus Copernicus 3. 3

... great philosopher Aristotle, who argued that the sun, moon, and stars were carried around Earth on rotating crystalline spheres. About AD 140, Ptolemy gave mathematical form to Aristotl e's model. Ptolemy kept the geocentric (Earth-centered) and uniform circular motion principles, but he added off-c ...
PLANETARY DATA Mean Distance Mass
PLANETARY DATA Mean Distance Mass

... 03. Suppose a car moves at a constant speed along a mountain road. At what place does it exert the greatest and least forces on the road: (a) at the top of the hill, (b) at a dip between two hills, (c) on a level stretch near the bottom of the hill. Explain!!! 04. Describe all the forces acting on a ...
solar system trail
solar system trail

... 4. Earth is unique, the only place we know of in the Solar System and galaxy that supports life. It lies within the Sun’s ‘habitable zone’ with liquid water on its surface and with life-supporting concentrations and amounts of chemicals. The core of iron is covered by a thick mantle of liquid rock. ...
Solar System Trail - City of Port Phillip Heritage website
Solar System Trail - City of Port Phillip Heritage website

... 4. Earth is unique, the only place we know of in the Solar System and galaxy that supports life. It lies within the Sun’s ‘habitable zone’ with liquid water on its surface and with life-supporting concentrations and amounts of chemicals. The core of iron is covered by a thick mantle of liquid rock. ...
Early Theories on the Distance to the Sun
Early Theories on the Distance to the Sun

... end of the seventeenth century that it was found that Ptolemy’s estimate was wrong by a factor of about seventeen. In this paper we sketch the early history of the knowledge of the distance of the sun from the Indian sources, sources that Neugebauer was not familiar with. We now know that the knowle ...
Mars: First Order Landforms
Mars: First Order Landforms

...  Mars has one of the greatest eccentricities in the solar system at 0.0934  Earth is one of the more circular at 0.0167 ...
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Earth's rotation



Earth's rotation is the rotation of the planet Earth around its own axis. The Earth rotates from the west towards east. As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise.The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface. This point is distinct from the Earth's North Magnetic Pole. The South Pole is the other point where the Earth's axis of rotation intersects its surface, in Antarctica.The Earth rotates once in about 24 hours with respect to the sun and once every 23 hours 56 minutes and 4 seconds with respect to the stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation. Atomic clocks show that a modern-day is longer by about 1.7 milliseconds than a century ago, slowly increasing the rate at which UTC is adjusted by leap seconds.
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