Where does star formation begin?

life cycle of stars

Flashcard
•
Science
•
8th Grade
•
Easy
Mohammed Ali
Used 1+ times
FREE Resource
Student preview

33 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Back
nebula
Answer explanation
Star formation begins in a nebula, which is a cloud of gas and dust in space. This environment provides the necessary conditions for gravity to pull material together, leading to the birth of new stars.
2.
FLASHCARD QUESTION
Front
Are stars produced in the nebula?
Back
True
Answer explanation
True. Stars are formed in nebulae, which are vast clouds of gas and dust in space. Under the right conditions, gravity causes the material in a nebula to collapse, leading to the birth of new stars.
3.
FLASHCARD QUESTION
Front
Is a protostar the last stage of a star's life?
Back
False
Answer explanation
A protostar is not the last stage of a star's life; it is an early stage in the formation of a star. The last stages include red giant or supernova, depending on the star's mass.
4.
FLASHCARD QUESTION
Front
Which is an accurate description of determining a star's life span?
Back
The less mass of the star, the longer the life span.
Answer explanation
The correct choice is that the less mass of the star, the longer the life span. Lower mass stars burn their fuel more slowly, allowing them to live longer compared to more massive stars, which have shorter life spans.
5.
FLASHCARD QUESTION
Front
What is true about main sequence stars?
Back
They are average sized medium stars
Answer explanation
Main sequence stars are classified as average-sized medium stars, typically ranging from about 0.1 to 10 times the mass of the Sun. They are not all dim or very luminous, as their brightness varies across the spectrum.
6.
FLASHCARD QUESTION
Front
Which of the following is NOT true about main sequence stars?
- as temperature increases so does luminosity
- all medium/ average sized stars
- include red giants, yellow stars, blue giants
- has the least amount of stars
Back
has the least amount of stars
Answer explanation
Main sequence stars are the most common type of stars, not the least. They include a range of sizes and colors, but red giants and blue giants are not main sequence stars. Thus, the statement about having the least amount of stars is NOT true.
7.
FLASHCARD QUESTION
Front
Which star would have the longer life span? Options: main sequence, blue giant
Back
main sequence
Answer explanation
Main sequence stars have a longer life span than blue giants because they burn their fuel more slowly. Blue giants consume their hydrogen rapidly, leading to shorter lifespans, while main sequence stars can last billions of years.
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