Stars and Their Life Cycles
Physics ⇒ Earth and Space Physics
Stars and Their Life Cycles starts at 8 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Stars and Their Life Cycles.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 9
Describe the process of nuclear fusion in stars.
Describe what a white dwarf is.
Explain what happens during a supernova explosion.
Explain what happens to the outer layers of a star when it becomes a red giant.
Explain why massive stars have shorter lifespans than less massive stars.
Explain why stars twinkle when observed from Earth.
What determines the final fate of a star after it leaves the main sequence?
What is a protostar?
A star with a mass less than about 8 times the mass of the Sun will end its life as a:
(1) Black hole
(2) Neutron star
(3) White dwarf
(4) Supernova
A star with a mass much greater than the Sun will end its life as a:
(1) White dwarf
(2) Neutron star or black hole
(3) Red giant
(4) Brown dwarf
Which element is primarily fused in the core of a main sequence star?
(1) Helium
(2) Hydrogen
(3) Carbon
(4) Oxygen
Which of the following best describes a brown dwarf?
(1) A failed star that never started nuclear fusion
(2) A star at the end of its life
(3) A type of supernova
(4) A very hot, blue star
A star is considered to be in equilibrium when the inward force of gravity is balanced by the outward pressure from ________.
A star spends most of its life in the ________ phase.
Fill in the blank: The explosion of a massive star at the end of its life is called a ________.
Fill in the blank: The process that powers stars and produces new elements is called ________.
Is it true that our Sun will eventually become a black hole?
True or False: A neutron star is denser than a white dwarf.
True or False: All elements heavier than hydrogen and helium are formed in stars.
True or False: All stars begin their life as a nebula.
