Astronomical unit - Study guides, Class notes & Summaries

practice post test #2 | Questions and Correct Answers | Latest Update 2024/2025 | 100% PASS Select the correct answer from each drop-down menu. The distance between Earth and Mars is 225 million km. When converted using the conversion factor 1 AU = 1.5 × 108 km, the distance between the planets is [0.2 AU/1.5 AU/2.0 AU]. The astronomical unit (AU) is [shorter than/longer than/the same as] a light-year. - Answer - 1.5 AU SHORTER THAN Drag each tile to the correct location. A scientist...

ASTRO 7N - Unit 2Copernicus - correct answer proposed the heliocentric (sun-centered) model of the universe, which replaced the geocentric (earth-centered) model distance between earth and sun - correct answer 1 astronomical unit -1 AU time for earth to orbit sun - correct answer 1 earth year -365 days Kepler's first law - correct answer the planets orbit the sun in elliptical orbits with the sun at one focus -these ellipses tend to be nearly circular for the planets in our solar s...

How many years ago was the big bang? Correct Answer-13.8 billion years ago What is the diameter of the Earth? Correct Answer-12,756.3 km(equatorial) What is the distance of Earth to Sun? Correct Answer-149,600,000 km What is 149,600,000 km equal to? Correct Answer-1 astronomical unit (AU) What is the distance of the alpha centauri system? Correct Answer-39,734,220,000,000 km= 4.2 light years What is a light year? Correct Answer-The distance light travels in a year at a velocity of...

Light year definition correct answers The distance light travels in one year Light year distance correct answers 9.5*10^12 km Astronomical Unit (AU) definition correct answers Average distance from the Earth to the Sun AU distance correct answers 1.5*10^8 km Galaxy correct answers A great cloud of stars, gas, and dust held together by the combined gravity of all its matter Planetary Systems correct answers A set of gravitationally bound non-stellar objects in orbit around a star o...

Cosmic Address - The galaxies we see through the Hubble Space Telescope Solar System - Sun, Planets and their moons, and anything else floating in space Galaxy - Great island of stars in space all held together by gravity and orbiting a common center Where is Earth's Solar System Located in the Milky Way? - A little over halfway between the galactic center and the edge of the galactic disk Local Group - A small cluster of galaxies Supercluster - Regions of the universe that is ti...

Scientific notation is used in astronomy to correct answers Conventionally express numbers with lots of zeros The distance 1000 AU is expressed in scientific notation as correct answers 10^3 The distance of one "Astronomical Unit", or AU, is defined as correct answers The average distance from the Earth to the sun How many official constellations were established by the International Astronomical Unit? correct answers None of the above. (88) Groupings of stars less formally defined...

Gizmo Solar System Explorer 2024 - All Answers are Correct Student Exploration: Solar System Explorer Vocabulary: astronomical unit, dwarf planet, eccentricity, ellipse, gas giant, Kepler’s laws, orbit, orbital radius, period, planet, solar system, terrestrial planet

PHSC102 Midterm study Guide with A Grade Solutions What are the Steps to the Scientific Method? - Answer-Step 1- make an observation, pose a question or problem Step 2 - make a hypothesis (an educated guess) Step 3 - experiment - hypothesis must be testable and reproducible Step 4 - Conclusion - Results The study of the Universe. - Answer-Astonomy Totality of all space, time, matter, and energy. - Answer-Universe Radius of Earth? - Answer-6378 Km Distance from Earth to the Sun...

What are the 7 characteristics of life? correct answers 1. Contains Macros 2. Composed of cells 3. Reproduces 4. Use energy/raw materials 5. Respond to stimuli 6. Homeostasis 7. Adaptation/Evolution What does structure determine? correct answers structure determines function What are the 5 unifying themes of biology? correct answers 1. Organization 2. Information 3. Energy 4. Interactions 5. Evolution What are the levels of biology? correct answers atoms, molecules, organelles...

A parsec is the same distance as 10 light-years (kind of a metric thing). - ️️False A telescope's job/function is to magnify an object in the sky. - ️️False A telescope's maximum useful magnification is about 50-power per inch of aperture. Which of the following telescopes will have the greatest maximum useful magnification? - ️️12" aperture Although clothed in technical language, each of Kepler's Laws has a very simple physical meaning. Match the meaning to the Law. A. Kep...