The planets in our solar Study guides, Class notes & Summaries

AST101 Clicker Quizzes UofT with 100% Correct Answers What does the term "Solar System" mean? - Answer- The Sun, the planets, and all of their moons What does the term "Universe" mean? - Answer- The totality of all space, time, energy, and matter Earth is 1 AU from the Sun. What is the maximumpossible separation between Earth and Mars? (Hint: Mars is the next farthest planet from the Sun) - Answer- 2.5 AU A 'light year' is a measure of: - Answer- distance Stars are... - Answer- bal...

PHSC 121 Homework (1-4) 1st Exam Practice Questions With Correct Answers 2024. Astronomy is the study of ___________________. a. the Solar System b. galaxies c. the entire universe d. the planets of the Solar System - CORRECT ANSWER c. the entire universe Which of the following is not a step in the scientific method? a. evaluate science opinion b. refine hypothesis, develop theory c. evaluate data d. draw new conclusions from experimental data and observations - CORRECT ANSWE...

EAPS 105 Exam 1 HW Questions & Answers 2024 What lies in the center of the galaxy? a. a void, like the eye of a hurricane b. the oldest stars in the galaxy c. a supermassive black hole d. the home world of our galactic empire - ANSWER-c. a supermassive black hole Which of the following statements about the solar system are correct? a. It formed 4.6 billion years ago. b. At least one of the giant planets are formed of rock and metal like terrestrial planets. c. The orbits of the ma...

1. What is the single most important reason that astronomers have learned more about our planetary system in the last 30 years than all of history before then. a. astronomers today are a lot smarter than astronomers were earlier b. the Hubble Space Telescope c. we have been able to send spacecraft to visit many planets and satellites d. radio telescope arrays allow astronomers to make out details on the planets that they have never been able to see before e. the planets (moving in their s...

PHSC 121 Homeworks (1-4) 1st Exam Questions All Correctly Answered Astronomy is the study of ___________________. a. the Solar System b. galaxies c. the entire universe d. the planets of the Solar System - Answer -c. the entire universe Which of the following is not a step in the scientific method? a. evaluate science opinion b. refine hypothesis, develop theory c. evaluate data d. draw new conclusions from experimental data and observations - Answer -a. evaluate science opinio...

Test Bank for Earth Science 14th Edition By Tarbuck Complete All Chapters 1- 14, Newest Version. Chapter 1 Introduction to Earth Science 1) What are the basic differences between the disciplines of physical and historical geology? A) Physical geology is the study of fossils and sequences of rock strata; historical geology is the study of how rocks and minerals were used in the past. B) Historical geology involves the study of rock strata, fossils, and geologic events, utilizing the geologi...

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...

The best estimate of when our Universe formed is a. 15.8 Ma b. 13.8 Ga c. 8.6 Ga d. 4.57 Ma correct answer: 13.8 Ga Which of the following statements is not true regarding the Big Bang Theory? a. Bodies in our solar system formed from a huge, rotating accretionary disk b. Material collected at the center of the accretionary disk to for a protosun c. The inner planets (Mercury, venus, Earth, Mars) formed from volatile elements (carbon dioxide, methane, ice, ammonia, and water). d. Sol...

ASTRONOMY CHAPTER 7___ __ is when we study and compare planets next to each other to understand their similarities and differences - correct answer Comparative planetology Comparative planetology includes moons, asteroids, and comets as well as planets - correct answer Our planets orbit it the same __ and nearly the same __ around the sun - correct answer direction; plane The sun is composed of 98% ____ and 2% ____ - correct answer Hydrogen; Helium The sun is the ___ and ___ object ...

A carbon dioxide concentration of 400 parts per million (ppm) means that carbon dioxide represents ________ of Earth's atmosphere. - ️️less than 0.1% A habitable world is defined to be one that - ️️has conditions suitable for life A star less luminous than our Sun will have a habitable zone that is - ️️narrower and closer to the star than the habitable zone of the Sun A UFO is - ️️an unidentified object seen in the sky A wormhole is a - ️️shortcut between two distant par...