File
... 21. This triangle was drawn as a triangulation to determine the distance to a tree across a river. The baseline was measured as 800 m and then angles carefully determined from each end to the tree. The scale drawing was made based on these measurements. The actual distance to the tree would be A. 7 ...
... 21. This triangle was drawn as a triangulation to determine the distance to a tree across a river. The baseline was measured as 800 m and then angles carefully determined from each end to the tree. The scale drawing was made based on these measurements. The actual distance to the tree would be A. 7 ...
Sample pages 1 PDF
... Angular diameter—the apparent size of a celestial object, measured in degrees, minutes, and/or seconds, as seen from Earth. OK, let’s define the three words in that sentence. A degree is 1/360 of a circle. Said another way, a circle contains 360°. A minute (short for minute of arc or arcminute) is 1 ...
... Angular diameter—the apparent size of a celestial object, measured in degrees, minutes, and/or seconds, as seen from Earth. OK, let’s define the three words in that sentence. A degree is 1/360 of a circle. Said another way, a circle contains 360°. A minute (short for minute of arc or arcminute) is 1 ...
oct8
... 1000, 100-watt light bulbs. With about 6 billion people this would only be 6 1014 watts. We would need 670 billion more Earth’s doing the same thing to equal the energy output of the Sun. ...
... 1000, 100-watt light bulbs. With about 6 billion people this would only be 6 1014 watts. We would need 670 billion more Earth’s doing the same thing to equal the energy output of the Sun. ...
Problem Set No. 5
... sun only burns a fraction (about 10%) of its hydrogen before leaving the main sequence. While a 0.4 M⊙ star may burn a larger fraction of its hydrogen, we do not think it would burn it all before leaving the main sequence. If, however, it were fully mixed, it would burn all its hydrogen and could th ...
... sun only burns a fraction (about 10%) of its hydrogen before leaving the main sequence. While a 0.4 M⊙ star may burn a larger fraction of its hydrogen, we do not think it would burn it all before leaving the main sequence. If, however, it were fully mixed, it would burn all its hydrogen and could th ...
friction Pluto
... 4. What is one of the theories behind the existence of the asteroid belt? 5. What is the process of accretion? 6. What is a shooting star? What is the scientific name of a shooting star? 7. What can scientists learn form meteorites? 8. How is Pluto Different from the other eight planets? 9. If you w ...
... 4. What is one of the theories behind the existence of the asteroid belt? 5. What is the process of accretion? 6. What is a shooting star? What is the scientific name of a shooting star? 7. What can scientists learn form meteorites? 8. How is Pluto Different from the other eight planets? 9. If you w ...
Teacher`s Guide - Discovery Education
... The DVD starting screen has the following options: Play Video—This plays the video from start to finish. There are no programmed stops, except by using a remote control. With a computer, depending on the particular software player, a pause button is included with the other video controls. Video Inde ...
... The DVD starting screen has the following options: Play Video—This plays the video from start to finish. There are no programmed stops, except by using a remote control. With a computer, depending on the particular software player, a pause button is included with the other video controls. Video Inde ...
Gravitation - prettygoodphysics
... A. They went high enough so there was very little gravity acting on them. B. The plane was accelerating downward at 9.8m/s2 so they were “falling” while inside the plane. C. They had powerful magnets in the plane, but in order for them to work they needed to be off the ...
... A. They went high enough so there was very little gravity acting on them. B. The plane was accelerating downward at 9.8m/s2 so they were “falling” while inside the plane. C. They had powerful magnets in the plane, but in order for them to work they needed to be off the ...
4-night-sky - High Point University
... planets circling the Sun, the Moon circling the Earth, etc., we only observe things from the Earth (or near the Earth in the case of space-based telescopes). • Our only reference frame for observation is that of the Earth (except for the few space probes, telescopes, etc.) • The positions of stars ( ...
... planets circling the Sun, the Moon circling the Earth, etc., we only observe things from the Earth (or near the Earth in the case of space-based telescopes). • Our only reference frame for observation is that of the Earth (except for the few space probes, telescopes, etc.) • The positions of stars ( ...
Astrophysics 2012_2013 Grade 10 April 29, 2013
... some pass through the inner solar system only once before entering interstellar space. Comet Encke has an orbital period of three years, the shortest of any known comet, while Comet Catalina‘s orbital period is estimated to be about six million years – its last sighting was recorded on March 23, 199 ...
... some pass through the inner solar system only once before entering interstellar space. Comet Encke has an orbital period of three years, the shortest of any known comet, while Comet Catalina‘s orbital period is estimated to be about six million years – its last sighting was recorded on March 23, 199 ...
The Solar System Powerpoint
... big does a planet need to be to become a full-fledged planet instead of a dwarf? You might think the minimum size requirement is arbitrary, but the size cutoff is actually based on other properties of the object and its history in the Solar System. Both planets and dwarf planets orbit the Sun, not o ...
... big does a planet need to be to become a full-fledged planet instead of a dwarf? You might think the minimum size requirement is arbitrary, but the size cutoff is actually based on other properties of the object and its history in the Solar System. Both planets and dwarf planets orbit the Sun, not o ...
Solar System - Bellevue ISD
... big does a planet need to be to become a full-fledged planet instead of a dwarf? You might think the minimum size requirement is arbitrary, but the size cutoff is actually based on other properties of the object and its history in the Solar System. Both planets and dwarf planets orbit the Sun, not o ...
... big does a planet need to be to become a full-fledged planet instead of a dwarf? You might think the minimum size requirement is arbitrary, but the size cutoff is actually based on other properties of the object and its history in the Solar System. Both planets and dwarf planets orbit the Sun, not o ...
PowerPoint Presentation - No Slide Title
... planets circling the Sun, the Moon circling the Earth, etc., we only observe things from the Earth (or near the Earth in the case of space-based telescopes). • Our only reference frame for observation is that of the Earth (except for the few space probes, telescopes, etc.) • The positions of stars ( ...
... planets circling the Sun, the Moon circling the Earth, etc., we only observe things from the Earth (or near the Earth in the case of space-based telescopes). • Our only reference frame for observation is that of the Earth (except for the few space probes, telescopes, etc.) • The positions of stars ( ...
conjunction and opposition
... Mercury can only be seen at a few times through the year, as it is often in a line of sight close with the Sun and impossible to see as a result. In the evening, about 30 to 45 minutes after sunset, or in the morning about 30 to 45 minutes before sunrise – these are the only times you will be able t ...
... Mercury can only be seen at a few times through the year, as it is often in a line of sight close with the Sun and impossible to see as a result. In the evening, about 30 to 45 minutes after sunset, or in the morning about 30 to 45 minutes before sunrise – these are the only times you will be able t ...
Lecture 20: Formation of Planets, Exoplanets 3/30
... • close to star: planets = heavy elements (iron,silicon) -water may be trapped at beginning in dust grains or come later from comets hitting surface??? • further from star: Gas Giants ices (water H2O, methane CH4) froze out early larger protoplanets more material to accrete • comets, meteors, as ...
... • close to star: planets = heavy elements (iron,silicon) -water may be trapped at beginning in dust grains or come later from comets hitting surface??? • further from star: Gas Giants ices (water H2O, methane CH4) froze out early larger protoplanets more material to accrete • comets, meteors, as ...
The Study of the Universe
... 7. Explain how spacecraft are launched into orbit. What are some of the challenges that must be overcome? 8. Describe three health problems astronauts experience when they are working aboard the ISS? 9. How do astronauts protect themselves against radiation hazards when they are working outside the ...
... 7. Explain how spacecraft are launched into orbit. What are some of the challenges that must be overcome? 8. Describe three health problems astronauts experience when they are working aboard the ISS? 9. How do astronauts protect themselves against radiation hazards when they are working outside the ...
Document
... ~ The moon takes 29 ½ days, one month to revolve around the Earth. ~ The moon completes one rotation in the same amount of time it takes to orbit the Earth so we see the same side of the moon all the time. ~ The moon reflects light from the sun. ~ Phases of the moon are the apparent changes in the s ...
... ~ The moon takes 29 ½ days, one month to revolve around the Earth. ~ The moon completes one rotation in the same amount of time it takes to orbit the Earth so we see the same side of the moon all the time. ~ The moon reflects light from the sun. ~ Phases of the moon are the apparent changes in the s ...
Lecture4 - University of Waterloo
... The most commonly occurring minerals are made of the most commonly occurring elements” In the inner SS these are dominantly O, Si, Mg, and Fe with lesser amounts of things like Na, Al, Ca, and Ni. The minerals we find are vastly dominated by SiO4 – these are called ...
... The most commonly occurring minerals are made of the most commonly occurring elements” In the inner SS these are dominantly O, Si, Mg, and Fe with lesser amounts of things like Na, Al, Ca, and Ni. The minerals we find are vastly dominated by SiO4 – these are called ...
The Sky Above: A First Look
... 6. Why does it seem like the sun moves across the sky? Earth turns or revolves one complete turn each day. 1. As the planets orbit the sun, what keeps them from flying away? The sun has a force called gravity that keeps the planets in their orbits. 8. What makes up our solar system? The video expla ...
... 6. Why does it seem like the sun moves across the sky? Earth turns or revolves one complete turn each day. 1. As the planets orbit the sun, what keeps them from flying away? The sun has a force called gravity that keeps the planets in their orbits. 8. What makes up our solar system? The video expla ...
Chp. 3 The sun-earth
... object in the universe attracts every other object." That applies to celestial bodies in the solar system as well. While the Sun's mass exerts a much greater gravitational pull on Earth than Earth does on the Sun, both bodies attract one another. The Sun's great mass keeps its eight planets circling ...
... object in the universe attracts every other object." That applies to celestial bodies in the solar system as well. While the Sun's mass exerts a much greater gravitational pull on Earth than Earth does on the Sun, both bodies attract one another. The Sun's great mass keeps its eight planets circling ...
File
... radiation (radio waves) caused by electrons accelerating along the planet’s magnetic lines of force. ...
... radiation (radio waves) caused by electrons accelerating along the planet’s magnetic lines of force. ...
Stars and the Sun
... • Runs out of He, core shrinks, outer layers float into space (planetary nebula) • Core left over, small and hot (white dwarf) • Eventually fuses up to carbon, ends as small cold ball of carbon (black dwarf) ...
... • Runs out of He, core shrinks, outer layers float into space (planetary nebula) • Core left over, small and hot (white dwarf) • Eventually fuses up to carbon, ends as small cold ball of carbon (black dwarf) ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.