UWRF Final Astronomy Questions and Answers 100% Solved correctly

What does a spectrophotometer measure? - Answer-How much light of each color is coming from a sky object The apparent path of the sun, moon, planets, and zodiac across the sky is called the? - Answer-Ecliptic What is special about the stars Mizar and Alcor in the Big Dipper? - Answer-They are actually a system of 6 stars When using circular maps the center of the circle represents the? - Answer-Overhead Point A solar day is the time between? - Answer-Sun Rises The first person credited with proposing a heliocentric solar system was? - Answer-Aristarchus of Samos Which measurement did Aristotle propose as proof that earth travels around the sun? - Answer-Angle of parallax of nearby stars Who was the first to determine the correct order of the known naked eye planets? - Answer-Copernicus Which observation made by Galileo proves the solar system is heliocentric? - Answer-Phases of Venus Newton's Universal Law of Gravitation says that if the distance squared between two bodies increases the gravitational force between them decrease. This relationship is called? - Answer-Inverse Squared The distance between two identical points of a light wave is called the? - Answer-Wavelength The relationship between wavelength and frequency is? - Answer-InverseWhich of the following lists lights waves from highest to lowest energy? - Answer-Gamma rays, Visible, Radio Waves "Mommy! Daddy! Why is the sky blue?" "Because particles in the atmosphere are the right size to cause this blue wavelength light." - Answer-Scattering Which of these devices is used primarily to cause dispersion of light waves? - Answer-Grating For light waves traveling in a vacuum, which of the following is true? - Answer-All light waves travel at the same speed The distance light travels in one minute is called a? - Answer-Light-Minute Each element produces a unique line spectrum because? - Answer-Atoms of each element have a unique set of energy levels Electrons move from higher energy levels to lower energy levels and produce light in this process: - Answer-Emission If you see the line emission spectrum from a star, expecting to see a red line, a green line, and a blue line but instead you measure infra-red line, a yellow line and a Green line with the same spacing, what is a possible hypothesis for why you see this? - Answer-The star is moving away from you Lines of latitude on earth are parallel to? - Answer-Earths Equator When you give the position of a star as 35N, You are describing its? - Answer-Declination Earths orbit around the sun traces out a plane called the plane of the? - Answer-Ecliptic