Layout and Structure - Layout and Structure
Layout and Structure (37) Add new question
Question
Q: what is layout and structure of solar system?
| Option | Answer | Is Correct |
|---|---|---|
| 1 | The principal component of the Solar System is the Sun, a main sequence G2 star that contains 99.86% of the system’s known mass and dominates it gravitationally. Jupiter and Saturn, the Sun’s two largest orbiting bodies, account for more than 90% of the system’s remaining mass.The currently hypothetical Oort cloud would also hold a substantial percentage were its existence confirmed. Most objects in orbit around the Sun lie near the ecliptic, a shallow plane parallel to that of Earth’s orbit. The planets are very close to the ecliptic while comets and kuiper belt objects are usually at significantly greater angles to it. All of the planets and most other objects also orbit with the Sun’s rotation in a counterclockwise direction as viewed from a point above the Sun’s north pole. There are exceptions, such as Halley’s comet. Objects travel around the Sun following Kepler’s laws of planetary motion. Each object orbits along an ellipse with the Sun at one focus of the ellipse. The closer an object is to the Sun the faster it moves. The orbits of the planets are nearly circular, but many comets, asteroids and objects of the Kuiper belt follow highly elliptical orbits. To cope with the vast distances involved, many representations of the Solar System show orbits the same distance apart. In reality, with a few exceptions, the farther a planet or belt is from the Sun, the larger the distance between it and the previous orbit. For example, Venus is approximately 0.33 AU farther out than Mercury, while Saturn is 4.3 AU out from Jupiter and Neptune lies 10.5 AU out from Uranus. Attempts have been made to determine a correlation between these orbital distances (see Bode’s Law) but no such theory has been accepted. |
Are you prepared and ready for your Exam?
Test your preparation with free online test. Stay ahead from others. Self assessment/analysis at your finger tips.
- Free Registration
- Free 25 test for new members equivalent to 250 question.
- 73225+ free, good quality MCQs included in the system.
Win Prizes
Take part in our quiz competition to win cash prizes, Mobile phone credit and more....
Visit our quiz competition page