The is a region of the sun where hot and cooler gases circulate in convection currents. a. chromoshpere b. photosphere c. corona d. convective zone 11. The motion of a planet traveling around the sun is called a. an orbit b. a revolution c. a rotation d. circling 12. The path that a planet takes while traveling around the sun is called a. an orbit b. a revolution c. a rotation d. circling 13. The spinning of a planet on its axis is called a. an orbit b. a revolution c. a rotation d. circling 14.
Phenomena on the Sun’s surface | 1. Prominences, solar flares and sunspots are examples of phenomena that occur on the surface of the sun. 2. These phenomena are believed to occur because of the changes in the magnetic field of the sun. Prominences 1.
Sometimes in binary systems, mass flows into a hot accretion disk around the neutron star and causes the emission of x rays. 14. Astronomers have found compacted objects
He suggested that all continents were once a huge supercontinent, called Pangaea- which drifted apart. He suggested that Pangaea had split into fragments like pieces of ice floating on a pond and that the continental fragments had slowly drifted to their present locations. But Wegener’s main problem was that he could not find a mechanism with which such movement was possible to his ideas was largely dismissed. Alfred Wegener pioneered the theory of continental drift in the early 1900s which he supported with multiple pieces of evidence. Perhaps the earliest indicator of the theory was the apparent fit of some of the Earth’s continents; analysis of these coastlines, notably the eastern edge of South America and the western edge of Africa, has shown that they are very similar geologically suggesting that at some point in the Earth’s history the landmasses were joined together.
Physical size = angular size x 2 x distance / 360 • Understand that constellations are groups of stars as seen from the Earth – the stars may not be close to each other at all • Our view of the celestial sphere is determined by where we stand on the Earth o Study the diagrams that show the path of stars as they rise and set and how those paths appear to differ depending on your location on the Earth • Know what causes the seasons (tilt of the Earth’s axis to it’s orbital plane) o Depend on how Earth’s axis affects the directness of sunlight o Sun’s altitude is also higher in Summer and Lower in Winter Summer solstice – highest path Winter solstice – lowest path Equinoxes – sun rises at exactly due east and sets exactly due west • Review the Moon’s phases • New Moon • Waxing (Right side of moon visible) o Waxing
Science Physics Core science questions and answers- Topic 1- The solar system- 1. What is a geocentric model? It is a model with the earth at the centre. 2. Describe two differences between ptolemy’s and Copernicus’s models- What is at the centre of the model and the way in which the planets followed smaller circles in their orbits in ptolemy’s model.
bfly_recent.gifFrom the research, sunspots do not appear at random over the surface of the sun but are concentrated in two latitude bands on either side of the equator. The sunspots are greatly related to our climate. While the solar cycle has been nearly regular during the last 300 years, there was a period of 70 years during the 17th and 18th centuries when very few sunspots were seen (even though telescopes were widely used). This drop in sunspot number coincided with the timing of the little ice age in Europe, implying a Sun- to-climate connection. limb_flare_sm.jpg (5710 bytes)Solar flares are tremendous explosions on the surface of the Sun.
It is 485 million miles from the sun making it a very cold planet in the range of minus 240 degrees F. However, due to the enormous pressure of its mass, the center is estimated to be 54,000 degrees F., or five times hotter than the surface of the sun. (The interior of the sun is 40 million ºF.) The earth rotates on its axis in 24 hours establishing day and night. Jupiter rotates in 9 hours, 54 minutes, giving it the shortest day and night of any of the planets. The surface speed of the earth at its equator is a little over 1,000 mph.
The most logical answer is A. When the earth was just starting to form a big astoride hit earth and a large amount of material flew off to form the moon. 3. Sunlight is created from_______ a. Sun light Bulbs b. Thomas Edison c. Yo Moma d. Energy from Nuclear Fusion i. D. Sunlight is the energy that is released when a nuclear reaction causes hydrogen to form in to helium 4.
They didn’t include the earth because this is when people thought that the Earth was the center of everything. This list of planets stayed the same until William Herschel discovered Uranus. Then Le Verrier discovered Neptune in 1846. Well since astronomers kept finding more and more planets they kept looking for them until they came across the 9th and final planet in 1930, Pluto. Background Information on Pluto Pluto was unlike all the other planets in many ways.