
A11恆星演化
Quiz
•
Science
•
9th - 12th Grade
•
Practice Problem
•
Medium
光正 王
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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
太陽因進行核融合反應而發光,請問其核融合在何處進行?
太陽表層
太陽的核心
整個太陽
隨機出現在太陽各處
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
太陽維持穩定發光的原因是?
太陽的氫融合反應和氦核合反應剛好維持一定的平衡
太陽的重力大於核融合的熱膨脹力,使太陽不致於爆開
太陽的重力剛好抵銷核融合的熱膨脹力
太陽核融合的熱膨脹力大於其重力,使太陽釋出內部熱能而發光
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
星雲凝聚成星體後,是否形成「恆星」的關鍵是?
是否進行氫核融合反應
是否維持穩定發光
是否具備行星系統
是否會產生超新星爆炸
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者不是主序星的特性?
溫度愈高體積愈大
光度愈強愈偏藍色
星體愈藍壽命愈短
星體愈紅,遠離地球愈快
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附圖為星色─星等圖(或稱赫羅圖),緃塺標為光度,橫座標為光譜分類(溫度),圖中標示甲~丁4顆星在赫羅圖中的位置,請問圖中哪些星體位於主序帶?
只有甲
只有乙
只有丙
甲和丁
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附圖為星色─星等圖(或稱赫羅圖),緃塺標為光度,橫座標為光譜分類(溫度),請問圖中哪顆星體積最大?
甲
乙
丙
丁
Answer explanation
乙應屬紅巨星,紅色星表面溫度底,單位時間單位面積釋出的能量雖沒有藍色的甲星高,但光度與甲星不相上下,顯然乙星的表面積必須比甲星大,可推測乙星應比甲星體積大。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附圖為星色─星等圖(或稱赫羅圖),緃塺標為光度,橫座標為光譜分類(溫度),請問圖中哪顆星體表面單位時間單位面積釋出的能量與丁星最相近?
甲
乙
丙
皆相近
Answer explanation
單位時間單位面積釋出的能量與星體表面溫度有關,圖中只有乙和丁溫度相近
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