15 Questions
What is the primary force that holds a star together?
Gravitational force
What process drives the formation and development of stars?
Nuclear fusion reactions
What is the initial source of energy for stars like the sun?
Hydrogen and helium reaction
What is the interstellar medium (ISM) composed of?
Gas and dust
What causes the collapse of clouds of gas and dust in outer space?
Gravitational energy
What is the birthplace of stars known as?
Nebula
When did our sun, as a star, form?
4.5 billion years ago
_ _ start life in the same way but develop differently based on their size.
Stars
_ _ pull clouds of gas and dust together causing them to collapse.
Gravity
What is the primary factor that determines the evolutionary path of a star?
The star's mass
Which of the following is NOT a necessary condition for star formation?
The occurrence of nuclear fusion reactions
What is the primary source of the Sun's energy output?
Nuclear fusion reactions involving hydrogen and helium
Which of the following best describes the initial stage of star formation?
The accumulation of interstellar gas and dust into molecular clouds
What is the primary force responsible for the collapse of molecular clouds during star formation?
Gravitational force
What is the term used to describe the thinly spread gas and dust in outer space from which stars are formed?
Interstellar medium (ISM)
Explore the formation, life cycle, and characteristics of stars, focusing on the Sun as a model in this astronomical journey.
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