Quasar - Study guides, Class notes & Summaries
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Astronomy 1020-Final Exam Study Guide Questions and Answers 2024
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How did Hubble classify galaxies? - -shape and structural properties 
-stellar content 
-gas and dust 
-star formation 
-stellar motion 
 
What are the different categories Hubble used to classified galaxies ? - Spirals, barred spirals, ellipticals, irregulars 
 
What are the characteristics of spiral galaxies? - -flattened galactic disk with spiral arms 
-central galactic bulge 
-extended halo of faint old stars -spirals are classified according to the size of the central bulge and tightness of...
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ABCTE Elementary Education Exam 206 Questions with Verified Answers,100% CORRECT
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ABCTE Elementary Education Exam 206 Questions with Verified Answers 
 
 
Magna Carta - CORRECT ANSWER (1215) a charter of liberties (freedoms) that King John "Lackland" of Englad was forced to sign; it made the king obey the same laws as the citizens of his kingdom 
 
13th Ammendment - CORRECT ANSWER officially abolished slavery, prohibits involuntary servitude. 
 
Articles of Confederation - CORRECT ANSWER 1st Constitution of the U.S. (weaknesses-no executive, no judicial, no power to tax, n...
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Astro1 UCSB Final Questions And Answers Rated A+ New Update Assured Satisfaction
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A THEORY is a pattern in nature thought to have predictive power. The test of a theory is a prediction. 
That's where pseudo-science fails. T/F - Answer-T 
Red giant stars are powered by hydrogen burning in a shell surrounding a core, which has been 
depleted of hydrogen. T/F - Answer-T 
Jovian planets have densities similar to that of water, and we know in fact that they are mostly made 
of water. T/F - Answer-F - Jovian planets are gaseous 
The Sun appears to circle the Celestial Sphere in on...
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PHSC 121 Hw 8 Exam Questions with Correct Answers
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PHSC 121 Hw 8 Exam Questions with Correct Answers 
 
A black hole is - Answer-b. a region in space where mass produces a gravity field so intense that neither matter nor light itself can escape 
 
Black holes are thought to be caused by - Answer-a. collapsing stars 
b. concentrated mass at the center of galaxies 
 
Black holes are theorized to be - Answer-b. at the center of galaxies 
c. at the center of quasars 
 
A quasar is - Answer-c. a large remote energy source which may contain a black ho...
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ASTR 205 Chapter 17 with quiz
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The radio lobes that flank some radio galaxies produce mainly - synchrotron radiation. 
The fact that many radio lobes emit more intensely from the side away from the galaxy 
suggests that - they are created by jets from the galaxy. 
The central galaxy in a double-lobed radio source is usually - a giant elliptical galaxy. 
The hot gas of a radio lobe could be held together by - collision with the intergalactic 
medium. 
Head-tail galaxies are - a, b and c. 
If the red shifts of quasars arise f...
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LUOA Earth Science Module 10 Questions and Answers Graded A+
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LUOA Earth Science Module 10 Questions and Answers Graded A+ Which type of star emits radio waves? Pulsars 
Dead stars are ________________ , and they no longer undergo nuclear fusion black dwarfs 
Stars that appear to pulsate but are non-pulsating are called ___________________. eclipsing binary stars 
Some stars expand and contract giving off varying intensities of brightness. These are _______________. pulsating stars 
Stars of average size and average temperature are called _______________. ...
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Astronomy DSST Practice Test Questions and Answers
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Quasar Short for "quasi-stellar radio source," a bright, point-like object that produces the luminosity of 100 to 1,000 galaxies within a region the size of a solar system. 
 
Pulsar A rapidly rotating neutron star which emits radiation in magnetic pulses. 
 
Redshift A shift in the lines of an object's spectrum toward the red end. It indicates that an object is moving away from the observer. The larger it is, the faster the object is moving. 
 
Asterism A cluster of stars (or a small constel...
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PHSC 121 HW 8 Review Practice Test 2024.
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PHSC 121 HW 8 Review Practice Test 2024. 
 
 
A black hole is - CORRECT ANSWER b. a region in space where mass produces a gravity field so intense that neither matter nor light itself can escape 
 
Black hols are thought to be caused by - CORRECT ANSWER a. collapsing stars 
b. concentrated mass at the center of galaxies 
 
Black holes are theorized to be - CORRECT ANSWER b. at the center of galaxies 
c. at the center of quasars 
 
A quasar is - CORRECT ANSWER c. a large remote energy source whic...
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ASTR 205 Astro Review 3 (and after)
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How do we classify galaxies? - We classify galaxies based on if they are spiral, elipitical 
or irregular. The size is determined be the halo. 
What kind of stars do elliptical galaxies contain? - Ellipitcal galaxies have only older 
stars. There is no gas or dust to create new stars. 
What kind of stars do spiral galaxies contain? - Spiral Galaxies contain old and new 
stars and much gas and dust. 
How is the light from active galaxies different from light from normal galaxies? - Active 
ga...
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PHSC 121 Liberty University Exam 3 Questions With All Complete Answers
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PHSC 121 Liberty University Exam 3 Questions With All Complete Answers 
 
We have seasons because - Answer -the earth's axis of rotation is tilted 23.5 degrees relative to the ecliptic 
 
Which of the following is true of the vernal equinox - Answer -the Sun is now crossing the equator into the northern hemisphere and the northern hemisphere begins to face toward the Sun 
 
For someone standing on the Tropic of Cancer, the sun will appear at the observer's zenith ___________ each year and at t...
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