Protostar - Study guides, Class notes & Summaries

Big Bang theory the theory that the universe was created in a massive explosion (the Big Bang), and that the universe has been expanding ever since black dwarf a star that has faded out and gone cold black hole an object in space that has so much mass that nothing, not even light, can escape from its gravitational field centripetal force the resultant force towards the centre of a circle acting on an object moving in a circular path cosmic microwave background rad...

Cloud of gas and dust (nebula) - ANSWER-Gravity brings it together Protostar - ANSWER-Fusion not started yet Main sequence star - ANSWER-- a star during the main part of its life cycle, where it is using hydrogen as a fuel. - fusion starts- small nuclei fuse to make a larger nuclei - fusion force outwards is balanced by inwards force of gravity- until hydrogen runs out- which causes fusion Red giant - ANSWER-Larger nuclei fuse to form elements up to Fe 1-26 on periodic table Supern...

ABCTE Biology Terms Exam 143 Questions with Verified Answers Acidic solution - CORRECT ANSWER contains more hydrogen ions than hydroxide ions basic solution - CORRECT ANSWER contains more hydroxide ions than hydrogen ions colligative properties - CORRECT ANSWER properties of a solution that depend only on the number of particles dissolved in it, not the properties of the particles themselves. The main ones are boiling point elevation and freezing point depression. boiling point eleva...

solar system - ANSWER-Everything orbiting the sun Planets - ANSWER-Major bodies that orbit a star dwarf planet - ANSWER-Orbits our sun but dose not meet all planetary requirements Moons - ANSWER-Natural satellites - orbit planets artificial satellite - ANSWER-Made by humans - orbit earth Planet order - ANSWER-Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune galaxy - ANSWER-A huge group of single stars, star systems, star clusters, dust, and gas bound together by gr...

Study of Earth Science Exam Questions and Answers .6 Billion years old (4,600,000,000) - Answer-How old is the earth? Nebula - Answer-A large cloud of gas and dust in interstellar space; a region in space where stars are born. Protostar - Answer-Is the shrinking, spinning region begins to flatten into a disk that has a central concentration of matter. Giant impactor - Answer-Mars-sized body struck Earth causing the debris the clump together to form the Moon. Meteorite bombardment ...

AQA GCSE Physics 4.8 - Space Physics Already Passed Nucleus The central part of an atom, containing protons and neutrons. Main sequence star A star during the main part of its life cycle, where it is using hydrogen as a fuel. Black hole The core of a red supergiant that has collapsed. These are formed if the remaining core has a mass more than three or four times the mass of the Sun. It is so dense that light can't escape it. Protostar The earliset stage in the lifecycle of a star They are f...

CSET Multiple Subjects Subtest 2: Math, Science Questions and Answers 2023 Order of Operations PEMDAS Parentheses Exponents Multiplication Division Addition Subtraction (between roots and exponents, do whatever comes first in the problem) What is the easiest way to find a common denominator? multiply all the denominators How do you multiply fractions? multiply numerator x numerator mutiply denominator x denominator (don't need a common denominator) how do you...

Astronomy Unit 6 Exam - Questions & Answers How can a white dwarf create a nova? A white dwarf that is part of a binary system can undergo repeated novas by consuming material from a main-sequence companion star. Describe the steps that the sun will follow for its evolution. Be able to draw its path on an H-R diagram. Nebula, Protostar, Main Sequence, Red giant, White Dwarf, Black Dwarf. (Up on the right, down, then up again til the middle of the graph, then slight down angle to the left, steep...

Astronomy 1010 Final TEST QUESTIONS WITH 100% COMPLETE SOLUTIONS Which two energy sources can help a star maintain its internal thermal pressure? - ANSWERS Nuclear fusion and gravitational contraction What is the source of luminosity for protostars that have not yet become hot enough for fusion in their cores? - ANSWERS Gravitational energy released by infalling matter What can we learn about a star from its life track on an H-R diagram? - ANSWERS What surface temperature...

ABCTE Biology Terms Exam 143 Questions with Verified Answers Acidic solution - CORRECT ANSWER contains more hydrogen ions than hydroxide ions basic solution - CORRECT ANSWER contains more hydroxide ions than hydrogen ions colligative properties - CORRECT ANSWER properties of a solution that depend only on the number of particles dissolved in it, not the properties of the particles themselves. The main ones are boiling point elevation and freezing point depression. boiling point eleva...