ESS
Grade-9
Easy
Question
A star with an initial mass of 8 to 25 solar masses will eventually turn out to be a _________.
- White dwarf
- Red giant
- Neutron star
- Main sequence star
Hint:
A star with an initial mass of 8 to 25 solar masses will eventually turn out to be a neutron star.
The correct answer is: Neutron star
- The white stars become cooler as their mass becomes 25 solar mass.
- This will lead to the end of their lives and causes heat death.
- When the mass of the star becomes 25, they turn to be a neutron star.
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Match the following
| Name of the star |
Color of the star |
| 1. Rigel |
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| Name of the star |
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| 1. Rigel |
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b. Blue supergiant |
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In which type of model are the Sun, other stars, and the Moon in orbit around the Earth?
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Which visible motion can be explained by a geocentric model?
Which visible motion can be explained by a geocentric model?
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Which of the following statement is correct?
Which of the following statement is correct?
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In __________ model the Sun, other stars, and the Moon orbit around the Earth.
In __________ model the Sun, other stars, and the Moon orbit around the Earth.
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