A large luminosity star - Study guides, Class notes & Summaries

GIZMOS STUDENT EXPLORATION: BIG BANG THEORY – HUBBLE’S LAW 2021 THE BEST EXAM Student Exploration: Big Bang Theory – Hubble’s Law Vocabulary: absolute brightness, absorption spectrum, apparent brightness, Big Bang theory, blueshift, Cepheid variable, Doppler shift, Hubble constant, Hubble’s law, luminosity, megaparsec, period, redshift, spectrograph Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Standing by the side of a lonely highway at night, you see two moto...

Space Exploration|Complete Questions with A+ Graded Answers main sequence a diagonal area on an H-R diagram that includes more than 90 percent of all stars white dwarf A small, hot, dim star that is the leftover center of an old star Luminosity the true brightness of an object light year the distance light travels in one year blueshifted the doppler shift toward shorter wavelengths of light from an approaching object Redshifted stars moving away from Earth Ne...

Astronomy 1010 Final HW One of the most important earlier steps in understanding stars was to group them into classes called spectral types that could offer clues as to why they are different from one another. Shown here are spectra of some main-sequence stars. Before stars were very well understood, they were classified into an order that was based on the relative strength of hydrogen absorption lines, marked by arrows the image shown. Look at the spectra for stars of different spectral ...

Identify the way oceans can influence climate change. Select the two correct answers -ocean temperature could affect currents -ocean currents could affect prevailing winds Which can scientists study to learn about the atmospheric carbon dioxide thousands of years ago? ice Brainpower 0:02 / 0:15 What effect did the Montreal Protocol have on Earth's ozone? It decreased ozone in the stratosphere. A group of scientists are studying observable matter in a cluster of gala...

ASTR 1010 Final Vanderbilt; Questions And Answers radioactive decay - answer -the process by which radioactive isotope breaks down into a stable isotope of same/another element; each half-life leaves half of existing population of radioactive isotope star cluster + special properties - answer -gravitationally bound stars formed from the same gas cloud; all about same dstnc from Earth, all about same age; open clusters have countable stars, globular clusters have too many to count (st...

Hydrostatic Equilibrium The current distinguishing criterion between dwarf planets and small Solar System bodies Evolution of stars of different mass -Star formation produces a wide variety of stars -Only a few high-mass stars (O, B Type) are produced -The lowest mass stars (eg.M type) are the most common. -If a "star" forms with a mass less than about 1/10 the mass of the Sun, it will not have enough pressure in its core to ignite nuclear fusion. •The lower limit to the mass of a...

GIZMOS STUDENT EXPLORATION THE BIG BANG THEORY MATHS CALCULATION WITH REFERENCING QUESTIONS AND ANSWERS EXAM 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 lightyear. - 1.5 AU SHORTER THAN Drag each tile to the correct location. A scientist is studying the light emitted by several celes...

GIZMOS STUDENT EXPLORATION THE BIG BANG THEORY MATHS CALCULATION WITH REFERENCING QUESTIONS AND ANSWERS EXAM 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 lightyear. - 1.5 AU SHORTER THAN Drag each tile to the correct location. A scientist is studying the light emitted by several celes...

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...

Science GED Test 99 Questions with Verified Answers Heat capacity of water and sand - CORRECT ANSWER Organism living in ocean have heat capacity 5X greater than organism living in the sand Human genome project (HGP) - CORRECT ANSWER Gene have been overestimated Hammer and feather drop - relationship btw kinetic energy of hammer and feather before hit the surface of the moon ? - CORRECT ANSWER Hammer has more kinetic energy than feather because it has more mass Natural selection - C...