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What observation about the sun's motion did early astronomers use to supportnthe geo centric theory?
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∙ 12y ago
GEOCENTRIC THEORY You already know as a fact that the Earth and all solar system bodies orbit the Sun but for centuries astronomers believed that the Sun and planets orbited the Earth. To us it looks natural.
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Give three proofs supporting the annual motion of the eatth?
The different position of the sun at different times of the year, day and night and by observation are the three proofs that support the annual motion of the earth.
Explain two ways in which a star's real motion through space translates into motion that is observable from earth?
The star's movement in space can be separated into two components. Observation for the two components differs drastically.
Who stated that the earth and other planets orbit around the sun and the earth is not at the center of the universe?
The concept of helio centric motion of the earth and planets was proposed by Nicolaus Copernicus (1473-1543) in his works 'De Revolutionibus Orbium Coelestium'- (About the revolutions of The heaveanly Spheres.).
Why do modern astronomers continue to use the celestial sphere when they know that stars are not all at the same distance?
For some purposes, especially explaining the apparent motion of the stars, the actual distances are not relevant, so the celestial sphere is still a useful model in such cases.
Which astronomers is credited as the first to theorize the planets orbit around the Sun?
The astronomer credited as the first to theorize that the planets orbit around the Sun (heliocentrism) is Nicolaus Copernicus. He developed the heliocentric model of the solar system, which proposed that the Sun was at the center and the planets, including Earth, revolved around it in circular orbits. This theory was a departure from the earlier geocentric model, which posited that Earth was at the center of the universe and everything orbited around it. Copernicus's work laid the foundation for the modern understanding of the solar system's structure and motion.
How does your observation of motion depends on your own motion?
I so care, but I don't know.
What lead to the disovery of the laws of motion?
Probably an observation of nature.
Classical Greek astronomers believed the motions of the heavens could be described by uniform circular motion?
true
Object of point from which motion is determined?
Frame Of Reference. which means a framework that is used for the observation and mathematical description
What observation most clearly supports the inference that liquids are composed of small particles in motion?
Brownian motion. This is the motion of small objects (like pollen) that appear to jiggle around while sitting in a drop of water. You can view this motion under a microscope.
The greek astronomers explanation for the celestial spheres did not encompass the phenomenon?
The Greek astronomer's explanation for the celestial spheres did not encompass the phenomenon of retrograde motion. The retrograde motion is the apparent motion of a planet to move in the opposite direction from the surrounding planetary bodies in the same system.
What is the physical significance of curl?
curl is clear from observation that many fluid flows involvs rotational motion of the fluid particle.
Give three proofs supporting the annual motion of the eatth?
The different position of the sun at different times of the year, day and night and by observation are the three proofs that support the annual motion of the earth.
Explain two ways in which a star's real motion through space translates into motion that is observable from earth?
The star's movement in space can be separated into two components. Observation for the two components differs drastically.
True or false rotation implies orbital motion of a planet about a star for astronomers?
Yes because if a Star has a planet the gravity of the planet will rock it back and forth
What observations about gases proved that molecules move?
The observation about gases that proved molecules can move is their compressibility. This is further corroborated by the Brownian Motion theory.
How do scientists know there are other planets in the solar system if they never made it there?
The invention of the telescope enabled scientists to observe the motion of planets, which the ancients called 'wandering stars'. Mathematical formulas have enabled astronomers to model and understand planetary motion. Occultations (eclipses) and spectrographic analysis increase the data that can be obtained from observation. Of course, all of this information is subject to revision (Pluto's size was once thought to be equal to Earth's) as unmanned space probes continue to provide some of the best images and details of the planets they have been sent to study.
