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78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] crust [Answer] | outermost layer of our planet | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] Moho/Mohorovicic discontinuity [Answer] | the layer of earth were earthquake waves suddenly get faster | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] refraction [Answer] | bending of the waves | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] shadow zone [Answer] | a ring shaped region caused by bending of the waves at the mantle-core boundary | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] Ring of Fire [Answer] | A ring of the most # of volcanoes and seismic events around the edges of the Pacific Ocean | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] tsunami [Answer] | A big wave usually caused by a earthquake or landslide under water | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] Alfred Wegener [Answer] | The scientist who came up with the theory of continental drift | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] Continental Drift [Answer] | the theory that all the continents fit together and eventually broke into continents | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] Pangea [Answer] | "the super continent",or when all continents were together | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] Convergent boundary [Answer] | colliding plates | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] Divergent boundary [Answer] | separating plates | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] subduction zone [Answer] | when a oceanic plate dives underneath a continental plate | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] trenches [Answer] | linear troughs caused by subduction zones | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] island arcs [Answer] | island groups caused by rising magma plumes from decending plates | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] Transform boundary [Answer] | where plates slide past each other | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] mid ocean ridges [Answer] | where upwelling magma creates new crust that moves away from the ridge in both directions | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] rift zone [Answer] | also known as a divergent plate boundary | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] conduction [Answer] | allows energy to flow through solids,very slow process | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] convection [Answer] | distibutes heat through solids | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
78a58f8c_rds_about_sw_The_dynamic_crust__Answer | [Question] hot spot [Answer] | when a lithospheric plate moves over a source of magma,to form volcanoes | [] | Flashcards about sw-The dynamic crust | Answer | http://www.studystack.com/flashcard-110036 | 41/1438042989510.73_20150728002309-00158-ip-10-236-191-2_712394971_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] The institutions and processes through which public policies are made for a society [Terms] | government | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] Goods, such as clean air and clean water, that everyone must share [Terms] | public goods | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] Who gets what, when, and how. Politics produces authoritative decisions about public issues [Terms] | politics | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] All the activities used by citizens to influence the selections of political leaders or the policies they pursue. The most common, but not the only, means of political participation in a democracy is voting. Others include protest and civil disobedience [Terms] | political particiapation | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] Groups that have a narrow interest, tend to dislike compromise, and often draw membership from people new to politics. These features distinguish them from traditional interest groups [Terms] | single issue groups | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] The process by which political problems are communicated by the voters and acted upon by government policymakers. [Terms] | policymaking system | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] The channels or access points through which issues and people's policy preferences get on the government's policy agenda. In the United States, elections, political parties, interest groups, and the mass media are the three main linkage institutions [Terms] | linkage institutions | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] The list of subjects or problems to which government officials, and peoople outside of government closely associated with those officals, are paying some serious attention at any given time. [Terms] | policy agenda | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] An issue that arises when people disagree about a problem and a public policy choice [Terms] | political issue | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] The branches of gov't charged with taking action political issues. the U.S. Constitution established three policymaking institutions (Congress, the presidency, and the courts). The power of the bureaucracy is often considered a fourth. [Terms] | policymaking institutions | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A choice that government makes in response to a political issue. A policy is a course of action taken with regard to some problem. [Terms] | public policy | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A system of selecting policymakers and of organizing government so that policy represents and responds to the public's preferences. [Terms] | democracy | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A fundamental principle of traditional democratic theory. In a democracy, choosing among alternatives requires that the majority's desire be respected. [Terms] | majority rule | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A principle of traditional democratice theory that guarentees rights to those who do not belong to majorities and allows that they might join majorities through persuasion and reasoned argument [Terms] | minority rights | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A basic principle of traditional democratic theory that describes the relationship between the few leaders and many followers [Terms] | representation | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A theory of government and politics emphasizing that politics is mainly a competition among groups, each one pressing for its own perferred policies. [Terms] | pluralist theory | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A theory of government and politics contending that societies are divided along class lines and that an upper-class elite will rule, reguardless of the formal niceties of governmental orgainization [Terms] | elite and class theory | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A theory of government and politics contending that groups are so strong that government is weakened. Hyperpluralism is an extreme, exaggerated, or perverted form of pluralism. [Terms] | hyperpluralism | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] A condition that occurs when no coalistion is strong enough to form a majority and establish policy. The result is that nothing may get done. [Terms] | policy gridlock | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] The sum total of the value of all the goods and services produced in a nation [Terms] | gross domestic product | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
082d2aba_Flashcards_about_Chapter_1__Terms | [Definitions] The belief that individual should be left on their own by the government. ONe of the primary reasons for the comparatively small scope of American government is the prominence of the belief in American political thought and practice. [Terms] | individualism | [] | Flashcards about Chapter 1 | Terms | http://www.studystack.com/flashcard-61890 | 41/1438042986451.45_20150728002306-00021-ip-10-236-191-2_719158017_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What two energy transport mechanisms, in order from outside the core to the surface, are found in the Sun? [Answer] | radiative diffusion, convection | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The outward pressure of hot gas in the Sun [Answer] | is balanced by the inward gravitational pressure | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The solar winds blow outward from [Answer] | coronal holes | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Suppose a large flare is detected optically. How long until radio interference arrives? [Answer] | simultaneously | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What natural barrier tries to prevent two protons from combining? [Answer] | Electromagnetic repulsion | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The critical temperature to initiate the proton-proton cycle in the cores of stars is [Answer] | 10 million K | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] In the proton-proton cycle, the helium atom and neutrino have less mass than the original hydrogen. What happened to the "lost" mass? [Answer] | It is converted to energy | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Which is the net result of the proton-proton chain? [Answer] | 4 protons = 1 helium4 + 2 neutrinos + gamma rays | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Our best stellar parallax measurements to date from [Answer] | the Hipparcos satellite | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The Hipparcos data give us [Answer] | parallaxes as small as 0.005" | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A star has a parallax of 0.01 arc seconds. Its distance is [Answer] | 100 parsecs. | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A star is 10 parsecs from Earth. Which statement is true? [Answer] | The star is about 33 ly away | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Rigel has an apparent magnitude of +0.18 and Betelgeuse an apparent magnitude of +0.45. What can you conclude from this? [Answer] | Rigel is brighter than Betelgeuse | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Two stars both have parallaxes of 0.023", but star A has apparent magnitude +2.3, while star B is magnitude +7.3. Which statement is true. [Answer] | Star A is both 100x brighter and more luminous than star B. | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What physical property of a star does the spectral type measure? [Answer] | temperature | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The star's color index is a quick way of determining its: [Answer] | temperature | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The H-R diagram can plot [Answer] | temperature versus luminocity | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] In the H-R diagram, what are the two most important types of data plotted? [Answer] | spectral classes and absolute magnitudes | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Stellar masses are measured directly by observations of the motions of [Answer] | All of the above can give us their masses. | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Interstellar gas is composed of [Answer] | 90% hydrogen, 9% helium by weight | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What effect does even thin clouds of dust have on light passing through them? [Answer] | It dims and reddens the light of all more distant stars. | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Which statement about dark dust clouds is true? [Answer] | They can be penetrated only with longer wavelengths such as radio and infrared. | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Some regions along the plane of the Milky Way appear dark becuase [Answer] | stars in that region are hidden by dark dust particles | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Due to absorption of shorter wavelengths by interstellar dust clouds, distant stars appear [Answer] | redder | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What is the primary visible color of an emission nebula? [Answer] | red due to ionized hydrogen atoms | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Emission nebulae like M42 occur only near stars that emit large amounts of [Answer] | ultraviolet radiation | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A large cloud in the interstellar medium that contains several type O and B stars would appear to us as [Answer] | an emission nebula | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A newly formed protostar will radiate primarily at which wavelength? [Answer] | infrared | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The single most important determinant of the temperature, density, radius, luminosity, and pace of evolution of a protostar is its [Answer] | mass | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A cloud fragment too small to collapse into a main sequence star becomes a [Answer] | brown dwarf | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] All globular clusters in our Milky Way are about how old? [Answer] | around 10 billion years old | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Which is a characteristic of globular star clusters? [Answer] | old age and hundreds of thousands of stars, only about 30 ly wide | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Why are star clusters ideal "laboratories" for stellar evolution? [Answer] | Their stars are all about the same age, compostion, and distance from us | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A star (no matter what its mass) spends most of its life: [Answer] | as a main sequence star | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] When a star's inward gravity and outward pressure are balanced, the star is said to be [Answer] | in hydrostatic equilibrium | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What temperature is needed to fuse helium into carbon? [Answer] | 100 million K | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] When a low mass star first runs short of hydrogen in its core, it becomes brighter because [Answer] | the core contracts, raising the temperature and hydrogen burning shell outward | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The helium flash converts helium nuclei into [Answer] | carbon | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A solar mass star will evolve off the main sequence when [Answer] | it builds up a core of inert helium | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Which of these is true of planetary nebulae? [Answer] | They are ejected envelopes surrounding a highly evolved low-mass star | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Which of these evolutionary paths is the fate of our Sun? [Answer] | planetary nebula | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] An iron core cannot support a star because [Answer] | iron cannot fuse with other nuclei to produce energy | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A 20 solar mass will stay on the main sequence for 10 million years, yet its iron core can exist for only a [Answer] | day | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The Chandrasekhar limit is [Answer] | the upper mass limit for a white dwarf | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The brightest stars of a young open cluster will be [Answer] | massive blue main sequence stars | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What is the typical age for a globular cluster associated with our Milky Way? [Answer] | 10-12 billion years | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Which is used observationally to determine the age of a star cluster? [Answer] | the luminosity of the main-sequence turn-off point | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What made supernova 1987a so useful to study? [Answer] | All of the above are correct | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] A neutron star is about the same size as [Answer] | a U.S. city | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The best place to search for black holes is in a region of space that [Answer] | has strong X-ray emission | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] If the Sun were magically to turn into a black hole of the same mass [Answer] | Earth's orbit would remain unchanged | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] In a neutron star, the core is [Answer] | made of compressed neutrons in contact with each other | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] Two important properties of young neutron stars are [Answer] | extremely rapid rotation and a strong magnetic field | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] An object more massive than the Sun, but roughly the size of a city, is a [Answer] | neutron star | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The mass range for neutron stars is [Answer] | 1.4 to 3 solar masses | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] What makes the Crab Nebula pulsar unusual among other pulsars? [Answer] | It is relatively bright in shorter wavelengths, like visible and X-rays | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The supernova of 1054 AD produced: [Answer] | a pulsar with a period of 33 milliseconds, visible optically | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] In a hypernova, a very energetic supernova creates a [Answer] | black hole | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
336a80c5_rds_about_Astronomy_Multiple_2__Answer | [Question] The Schwartzchild radius for a 12 solar mass star is [Answer] | 36 km | [] | Flashcards about Astronomy Multiple 2 | Answer | http://www.studystack.com/flashcard-785543 | 41/1438042989510.73_20150728002309-00228-ip-10-236-191-2_732388038_3.json |
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