
B05地球的起源
Quiz
•
Science
•
9th - 12th Grade
•
Practice Problem
•
Medium
光正 王
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5 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
下列關於太陽系形成的四種理論中,哪一種說法可以解釋目前太陽系八大行星繞行太陽的軌道面幾乎是在同一平面上?(多選)
彗星撞擊說
潮汐說
熱星雲說
冷星雲說
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列關於太陽系形成的四種理論中,哪一種說法強調太陽系早期透過重力吸引、累積周遭物質,由小顆粒埃吸積、碰撞,逐漸形成大星體,最終形成今日的太陽系?
彗星撞擊說
潮汐說
熱星雲說
冷星雲說
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
科學家提出太陽系形成的理論,常透過觀測目前太陽系中的各種現象進行驗証,請問以下何項敘述非目前觀測的結果?
太陽系是由冷星雲演變而成
長蛇座TW具有明顯的吸積盤
金屬與岩石構成的類地行星較靠近太陽
太陽系中大多數天體繞太陽的方向大約同一方向
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
冷星雲的假說中,早期太陽星雲吸積形成的微行星,若其內部未出現分異作用,則其組成應較接近下列何者?
球粒隕石
無球粒隕石
鐵質隕石
鐵石隕石
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
科學家認為小行星應該是早期微行星或其碎片演變而來,而這些碎片少部分成為地球上隕石,鐵質隕石的來源可証明早期微行星形成時,其內部具有分異作用,使成密度較大的鐵沈降至核心,而這類微行星被撞碎後就形成鐵成分很高的碎片,最後成為隕石掉落在地球上。科學家推測地球的地核的主要成分是鐵,主要是根據何種証據?
大部分隕石的鐵含量都很高
地球上大部分的鐵可能因分層作用而沈至地核
科學家利用鑽井方式採得
利用地震波可得知地球內部成分是鐵
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