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StarWalkKiDS manual en
StarWalkKiDS manual en

... Information gives a full pack of information along with the media on chosen object and provides an access to Wikipedia pages. Movies are short animated films that explain the most important cosmic phenomena in ...
Notes in pdf format
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... piece of matter, small enough in size to be regarded as a mathematical point. For two particles that have masses m1 and m2 and are separated by a distance r, the force that each exerts on the other is directed along the line joining the particles and has a magnitude given by: ...
Unit 3, Prelab Unit 3
Unit 3, Prelab Unit 3

... that were to exist even if matter did not exist. For our purposes, you can take the intuitive idea of space and time that you probably now have, also adding the idea of force. (Weight is a good example of force.) This way Newton arrived at his three laws of motion and the gravitational law. From the ...
28. Planet Earth - Brigham Young University
28. Planet Earth - Brigham Young University

... same density as earth, it would be 1400 times more massive than our planet; in fact, it is only about 300 times more massive because its density is less than onefourth that of earth and only a little more than that of water. During the formation of the solar system, according to the nebular theory, ...
6th Grade Great Barrier Reef
6th Grade Great Barrier Reef

... The Universe: Big and Getting Bigger!  Beyond the Milky Way, there are billions more stars in the galaxies that are our closest neighbors.  One of our close neighbors is the Andromeda galaxy, but don’t expect to travel there soon.  Even though Andromeda is closer to us than most other galaxies, i ...
Newtons 2nd Law
Newtons 2nd Law

... • Sliding friction also acts on the book. • After you stop pushing, sliding friction causes the book to slow down and stop. ...
If you wish to a copy of this months Night Sky News
If you wish to a copy of this months Night Sky News

... sequence stars, about twice the size of the sun. They can be separated with a good small telescope. Castor B is now also known to be a spectroscopic binary whose components are even closer, at only 4.5 million km distance and having an orbital period of only three days. A distant 9th mag. companion ...
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First Grade Fourth Quarter Science Planning Guide

...  Pick one student to act as the Earth and one to act as the Moon. Ask student how long it takes for the Earth to spin around—24 hours. Explain that the Moon rotates much slower—it takes a little more than 27 days for the Moon to rotate all the way around. Ask students, "Which spins faster, the Eart ...
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... • Earth rotates twice as fast, orbit around Sun unchanged – Solar day = 12 hours, ~361 degree rotation – Sidereal day = 360 degree rotation – Half as long to rotate extra degree… ...
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Locating True North in Ancient China

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... constant at 950 m/s2. Therefore, your colleague concluded that the force for ship C is 950M Newton, different from yours. It turned out that your colleague did not completely shut down the engine and ship B actually accelerates with respect to you or an inertial system at an acceleration of 50 m/s2. ...
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... Previous/future knowledge: Students in 1st grade (1-3.4) illustrated the changes in the Moon’s appearance showing a pattern over time. The concept of tides and the fact that the Moon affects ocean tides is new to this grade. In the 8th grade (8-4.4) students will study many of the motions of Earth a ...
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... 5. Based on what you’ve seen how would you define gravity? Gravity is a force of attraction between objects based on their mass and their distance apart. Part 2 - Watch the following video: https://www.youtube.com/watch?v=lY3XV_GGV0M then answer the questions below. 6. The law of gravity states tha ...
fundamental concepts of physics
fundamental concepts of physics

... of physical reality. A useful example is the development of the explanation of the problem of planetary motion. It is likely that the problem of explaining the motion of planets in the night sky is one of the oldest to which humanity gave any attention. Ancient civilizations gave much thought to the ...
13 Universal Gravitation
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... from its source, it follows an inverse-square law. This law applies to the weakening of gravity with distance. It also applies to all cases where the effect from a localized source spreads evenly throughout the surrounding space. Examples are light, radiation, and sound. ...
Scale in the Solar System
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... times. You could fly from Los Angeles to New York and back every day and it would still take you 20 years to travel that far. Jupiter is ten times farther away. Students have a hard time dealing with such huge numbers. We need a simpler way to think about the solar system. It involves reducing the s ...
April - Magic Valley Astronomical Society
April - Magic Valley Astronomical Society

... All times, unless otherwise noted, are Universal Time Coordinate (subtract seven hours and, when appropriate, one calendar day for MST.) 4/1 Mercury is at the ascending node at 1:00; Pluto is 3.3 degrees south of the Moon at 3:00; the Curtiss Cross, an Xshaped clair-obscure illumination effect locat ...
The cosmic distance ladder
The cosmic distance ladder

... repeated itself every 780 days (the synodic period of Mars). ωEarth – ωMars = 1/780 days ...
The Sky This Month Feb 22 to Mar 22 2017
The Sky This Month Feb 22 to Mar 22 2017

... A few days after superior conjunction beyond the sun on March 7, Mercury commences the best evening apparition of the year for northern hemisphere observers, becoming visible low in the west after sunset from mid-month onwards. During the month, it approaches Earth – causing its disk to increase in ...
The cosmic distance ladder
The cosmic distance ladder

... repeated itself every 780 days (the synodic period of Mars). ωEarth – ωMars = 1/780 days ...
Jul - Wadhurst Astronomical Society
Jul - Wadhurst Astronomical Society

... Brian looked at how the Moon was formed. He said the most popular theory at present is that in the distant past the Earth was struck by a Mars sized body subsequently given the name Theia. The resulting strike may be why the Earth’s axis is at an angle to the plane of the Sun but this does give us ...
Pitt County Schools
Pitt County Schools

... objects move they way they do. Distinguish between mass and weight. Use these laws in the description of physical phenomena. 1.11 State Newton’s Law of Gravity in own words and describe what Law of Inverse-Square means.  Explain why gravity is needed to keep one object orbiting around another by u ...
Astronomical Knowledge Questionnaire (Student
Astronomical Knowledge Questionnaire (Student

...  It will have lost its outer layers, leaving its core behind.  It will explode, destroying Earth.  It will not die due to its mass.  I do not know the answer to this question. 13 How did the planets orbiting our Sun form?  The planets and the Sun formed at the time of the Big Bang.  The planet ...
Grade 4 Big Idea 5 final 610 - I
Grade 4 Big Idea 5 final 610 - I

... that support understanding to obtain information (identifying the source), conduct both individual and team investigations through free exploration and systematic investigations, and generate appropriate explanations based on those explorations. SC.4.N.1.6 Keep records that describe observations mad ...
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Lunar theory

Lunar theory attempts to account for the motions of the Moon. There are many irregularities (or perturbations) in the Moon's motion, and many attempts have been made to account for them. After centuries of being problematic, lunar motion is now modeled to a very high degree of accuracy (see section Modern developments).Lunar theory includes: the background of general theory; including mathematical techniques used to analyze the Moon's motion and to generate formulae and algorithms for predicting its movements; and also quantitative formulae, algorithms, and geometrical diagrams that may be used to compute the Moon's position for a given time; often by the help of tables based on the algorithms.Lunar theory has a history of over 2000 years of investigation. Its more modern developments have been used over the last three centuries for fundamental scientific and technological purposes, and are still being used in that way.
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