Test yourself on the crossword! Increase your knowledge
... 5) Uranus is the coldest planet, it’s internal heat appears markedly lower than that of the other giant planets; in astronomical terms, it has a low thermal flux. 6) Uranus has rings, they are very dark and are composed of fairly large particles ranging up to 10 meters in diameter in addition to fin ...
... 5) Uranus is the coldest planet, it’s internal heat appears markedly lower than that of the other giant planets; in astronomical terms, it has a low thermal flux. 6) Uranus has rings, they are very dark and are composed of fairly large particles ranging up to 10 meters in diameter in addition to fin ...
Scale and Distance
... Pluto is a dwarf planet that usually orbits past the orbit of Neptune. It was classified as a dwarf planet in 2006; before that it was considered to be a planet, the smallest planet in our solar system. Pluto is smaller than a lot of the other planets' moons, including our moon. Pluto is the only "p ...
... Pluto is a dwarf planet that usually orbits past the orbit of Neptune. It was classified as a dwarf planet in 2006; before that it was considered to be a planet, the smallest planet in our solar system. Pluto is smaller than a lot of the other planets' moons, including our moon. Pluto is the only "p ...
Gravitational Force Problem Set
... kg. In one of its orbits, the electron is 5.3 × 10-11 m from the proton. What is the mutual attractive force between the electron and proton? A) 1.8 × 10-47 N B) 3.6 × 10-47 N C) 5.4 × 10-47 N D) 7.0 × 10-47 N 11. The gravitational attractive force between two masses is F. If the masses are moved to ...
... kg. In one of its orbits, the electron is 5.3 × 10-11 m from the proton. What is the mutual attractive force between the electron and proton? A) 1.8 × 10-47 N B) 3.6 × 10-47 N C) 5.4 × 10-47 N D) 7.0 × 10-47 N 11. The gravitational attractive force between two masses is F. If the masses are moved to ...
HW: PSI Gravity Problems Worksheet With Answers
... 2. Two objects, with masses m1 and m2, are originally a distance r apart. The magnitude of the gravitational force between them is F. The masses are changed to 2m1 and 2m2, and the distance is changed to 4r. What is the magnitude of the new gravitational force? A) F/16 B) F/4 C) 16F D) 4F 3. As a ro ...
... 2. Two objects, with masses m1 and m2, are originally a distance r apart. The magnitude of the gravitational force between them is F. The masses are changed to 2m1 and 2m2, and the distance is changed to 4r. What is the magnitude of the new gravitational force? A) F/16 B) F/4 C) 16F D) 4F 3. As a ro ...
Astro 10: Introductory Astronomy
... • Clever astronomers have used a new clue; measure the hydrogen isotope deuterium, whose abundance is directly proportional to ordinary hydrogen. They’ve done this for a young star TW Hydrae, which is only 310M yrs old, and find the disk is much more massive than they had guessed. • Maybe at least m ...
... • Clever astronomers have used a new clue; measure the hydrogen isotope deuterium, whose abundance is directly proportional to ordinary hydrogen. They’ve done this for a young star TW Hydrae, which is only 310M yrs old, and find the disk is much more massive than they had guessed. • Maybe at least m ...
PSI AP Physics 1 Gravitation
... 2. Two objects, with masses m1 and m2, are originally a distance r apart. The magnitude of the gravitational force between them is F. The masses are changed to 2m1 and 2m2, and the distance is changed to 4r. What is the magnitude of the new gravitational force? A) F/16 B) F/4 C) 16F D) 4F 3. As a ro ...
... 2. Two objects, with masses m1 and m2, are originally a distance r apart. The magnitude of the gravitational force between them is F. The masses are changed to 2m1 and 2m2, and the distance is changed to 4r. What is the magnitude of the new gravitational force? A) F/16 B) F/4 C) 16F D) 4F 3. As a ro ...
Document
... 2. AAT data shows 3.8 d peak 3. Individual data sets do not show either 39 d, or 124 d signal There might be a signal at ~4 d, but the fact that different data sets give different answers makes me doubt this The other two „planets“ are noise → This is not a robust or confirmed planetary system becau ...
... 2. AAT data shows 3.8 d peak 3. Individual data sets do not show either 39 d, or 124 d signal There might be a signal at ~4 d, but the fact that different data sets give different answers makes me doubt this The other two „planets“ are noise → This is not a robust or confirmed planetary system becau ...
Newton
... •How does the acceleration of gravity depend on the mass of a falling object? •It does not. All falling objects fall with the same acceleration (on a particular planet). ...
... •How does the acceleration of gravity depend on the mass of a falling object? •It does not. All falling objects fall with the same acceleration (on a particular planet). ...
The Moons of Other Planets
... The Moons of Mars • Phobos and Deimos are small, oddly shaped satellites. They look much like asteroids. • One possibility is that these two moons are asteroids that were caught by Mars’s gravity. ...
... The Moons of Mars • Phobos and Deimos are small, oddly shaped satellites. They look much like asteroids. • One possibility is that these two moons are asteroids that were caught by Mars’s gravity. ...
MIDTERM #1 AST209 - The Cosmos Feb 10, 2012 50 minutes
... D) It is impossible to say with only the information provided E) The one with the higher mass. 29. Why is it summer in the Northern Hemisphere when it is winter in the Southern Hemisphere? A) The Northern Hemisphere is tilted away from the Sun and receives more indirect sunlight. B) The Northern Hem ...
... D) It is impossible to say with only the information provided E) The one with the higher mass. 29. Why is it summer in the Northern Hemisphere when it is winter in the Southern Hemisphere? A) The Northern Hemisphere is tilted away from the Sun and receives more indirect sunlight. B) The Northern Hem ...
Meet Our Solar System
... system. Tell them that roads, bridges, and vehicles make up a transportation system. Discuss the digestive system next. Explain that the human digestive system is made of many body parts and that all these parts must work together in order to accomplish a single task—that of nourishing the body. Ask ...
... system. Tell them that roads, bridges, and vehicles make up a transportation system. Discuss the digestive system next. Explain that the human digestive system is made of many body parts and that all these parts must work together in order to accomplish a single task—that of nourishing the body. Ask ...
Lecture 2 - University of Chicago, Astronomy
... in the telescope, but stars did not; observed all four phases of the Venus (gibbous phases could not be explained by the Ptolemaic model); discovered four largest satellites of Jupiter; they are still called Galilean moons; this was another blow to the dying Ptolemaic system. Galileo resolved the Mi ...
... in the telescope, but stars did not; observed all four phases of the Venus (gibbous phases could not be explained by the Ptolemaic model); discovered four largest satellites of Jupiter; they are still called Galilean moons; this was another blow to the dying Ptolemaic system. Galileo resolved the Mi ...
NASA finds closest Earth-twin yet
... and higher mass and gravity than on Earth. “This planet is protected at least for a little while longer, 500 million years or so, from experiencing the runaway greenhouse (effect), assuming that it is six billion years old,” he told reporters. The Kepler mission launched in 2009 to search for exopla ...
... and higher mass and gravity than on Earth. “This planet is protected at least for a little while longer, 500 million years or so, from experiencing the runaway greenhouse (effect), assuming that it is six billion years old,” he told reporters. The Kepler mission launched in 2009 to search for exopla ...
Moons of the Solar System
... crash into Mars in 40 or 50 million years, or the planet’s gravity might break Phobos apart, creating a thin ring around Mars. Of the terrestrial (rocky) planets of the inner solar system, nei ther Mercury nor Venus has any moons at all, Earth has one, and Mars has its two small moons. In the outer ...
... crash into Mars in 40 or 50 million years, or the planet’s gravity might break Phobos apart, creating a thin ring around Mars. Of the terrestrial (rocky) planets of the inner solar system, nei ther Mercury nor Venus has any moons at all, Earth has one, and Mars has its two small moons. In the outer ...
99942 Apophis Asteroid - Lawrencehallofscience
... How close will the asteroid get to Earth? To calculate this, we need two of the orbital elements: a, the semi-major axis of the ellipse, which measures how far away the asteroid is from the Sun on average (for a perfect circle, the semi-major axis is equal to the radius), and e, the eccentricity, wh ...
... How close will the asteroid get to Earth? To calculate this, we need two of the orbital elements: a, the semi-major axis of the ellipse, which measures how far away the asteroid is from the Sun on average (for a perfect circle, the semi-major axis is equal to the radius), and e, the eccentricity, wh ...
Basic data of CoRoT-Exo-2b - tls
... Photometric accuracy 10 to 100 times better than with ground based telescopes. While ground based observations reach a level of better than 1%, not all nights are perfect. In many nights this means that the photometric accuracy for all faint stars is bad. Because all stars are effected at the time ...
... Photometric accuracy 10 to 100 times better than with ground based telescopes. While ground based observations reach a level of better than 1%, not all nights are perfect. In many nights this means that the photometric accuracy for all faint stars is bad. Because all stars are effected at the time ...
here.
... A) one month B) one year C) one week D) one day E) The time it takes Earth to orbit the Sun changes significantly from one orbit to the next. ...
... A) one month B) one year C) one week D) one day E) The time it takes Earth to orbit the Sun changes significantly from one orbit to the next. ...
The Gravitational Assist
... When a spacecraft flies past a much more massive body—for example a planet (but it can be a moon as well), the planet acts on the spacecraft via its gravitational force and changes the spacecraft’s velocity relative to the Sun. The velocity is a vector so the change can be in direction and also in m ...
... When a spacecraft flies past a much more massive body—for example a planet (but it can be a moon as well), the planet acts on the spacecraft via its gravitational force and changes the spacecraft’s velocity relative to the Sun. The velocity is a vector so the change can be in direction and also in m ...
Pluto and Kuiper Belt Object Notes
... 1) Its orbit is the most out of round (eccentric) and is inclined by the greatest angle with respect to the ecliptic plane, near which the other planets revolve. 2) Pluto’s elliptical orbit is so eccentric that part lies inside the orbit of Neptune. Pluto was closest to the Sun in 1989 and moved fur ...
... 1) Its orbit is the most out of round (eccentric) and is inclined by the greatest angle with respect to the ecliptic plane, near which the other planets revolve. 2) Pluto’s elliptical orbit is so eccentric that part lies inside the orbit of Neptune. Pluto was closest to the Sun in 1989 and moved fur ...
Final Exam - Practice questions for Unit V
... the smaller its radius when on the main sequence. ...
... the smaller its radius when on the main sequence. ...
Neptune
... calculate Uranus's orbit and then predict where the gravitational pull should be coming from. In France another mathematician, Urbain Leverrier, studied the same problem and came up with a similar solution. Then two German astronomers, Johann Galle and Heinrich D'Arrest, began looking through their ...
... calculate Uranus's orbit and then predict where the gravitational pull should be coming from. In France another mathematician, Urbain Leverrier, studied the same problem and came up with a similar solution. Then two German astronomers, Johann Galle and Heinrich D'Arrest, began looking through their ...
Neptune
... In the 1840s, astronomers were interested in the planet Uranus, the most recently discovered planet. Since it was so far away, one of the best ways they had to learn more details about Uranus was through math. Mathematicians were studying Uranus's orbit when they noticed something strange. Uranus di ...
... In the 1840s, astronomers were interested in the planet Uranus, the most recently discovered planet. Since it was so far away, one of the best ways they had to learn more details about Uranus was through math. Mathematicians were studying Uranus's orbit when they noticed something strange. Uranus di ...
Dawn Spacecraft Will Go Asteroid
... and 2004. Although Hubble has taken photos of Vesta before, these new images are the best views of the asteroid’s Southern Hemisphere. The photos clearly show the large impact basin created from a collision billions of years ago. The huge crater is 285 miles (456 kilometers) across, which is nearly ...
... and 2004. Although Hubble has taken photos of Vesta before, these new images are the best views of the asteroid’s Southern Hemisphere. The photos clearly show the large impact basin created from a collision billions of years ago. The huge crater is 285 miles (456 kilometers) across, which is nearly ...
Planets beyond Neptune
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis, and Pluto was officially named the ninth planet. In 1978, Pluto was conclusively determined to be too small for its gravity to affect the giant planets, resulting in a brief search for a tenth planet. The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. After 1992, the discovery of numerous small icy objects with similar or even wider orbits than Pluto led to a debate over whether Pluto should remain a planet, or whether it and its neighbours should, like the asteroids, be given their own separate classification. Although a number of the larger members of this group were initially described as planets, in 2006 the International Astronomical Union reclassified Pluto and its largest neighbours as dwarf planets, leaving Neptune the farthest known planet in the Solar System.Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis. Other trans-Neptunian planets have also been suggested, based on different evidence. As of March 2014, observations with the WISE telescope have ruled out the possibility of a Saturn-sized object out to 10,000 AU, and a Jupiter-sized or larger object out to 26,000 AU.