ERSC 1P94 CERTIFICATION EVALUATION
2026 COMPREHENSIVE QUESTIONS
ANSWERS
◉ After the dramatic destruction of a massive star by a supernova
explosion Answer: How did the solar system form?
◉ What is the formation of the Solar System Answer: nebular
hypothesis
◉ What did the solar system form from? Answer: Nebular material
◉ formed a nebula and the formation of the sun and the solar
system is a product of it Answer: What is the supernova explosion?
◉ What is a nebula? Answer: immense cloud of gas and dust in a
place also called a mollecular cloud
◉ How long does it take for a sun like star to from from a nebula?
Answer: 1 million years
, ◉ the force of gravity and prevailed over gas pressure and then the
nebula collapsed Answer: What caused the nebula to spin?
◉ what happens when the diameter of the nebula was reduced?
Answer: The rate of the spin increased
◉ due to the interaction of the pressure and gravational forces, as
the nebula was spinning it became flatter and formed disks Answer:
What casued the Nebula to form disks?
◉ What is molecular outlfow? Answer: Collapse of the protosun
often followed by jets of dense gas
◉ What does the very high temps toward the centre of the nebula
mean for the innermost planet Mercury? Answer: That mercury is
volatile-poor; low water and carbon and rich in refactory phrases
such as iron
◉ Where are gas giants thought to form? Answer: Beyond the frost
line
◉ distnace in the solar nebula from the central protostar where it is
cold enough for volatile compoinds Answer: What is the frost line?
2026 COMPREHENSIVE QUESTIONS
ANSWERS
◉ After the dramatic destruction of a massive star by a supernova
explosion Answer: How did the solar system form?
◉ What is the formation of the Solar System Answer: nebular
hypothesis
◉ What did the solar system form from? Answer: Nebular material
◉ formed a nebula and the formation of the sun and the solar
system is a product of it Answer: What is the supernova explosion?
◉ What is a nebula? Answer: immense cloud of gas and dust in a
place also called a mollecular cloud
◉ How long does it take for a sun like star to from from a nebula?
Answer: 1 million years
, ◉ the force of gravity and prevailed over gas pressure and then the
nebula collapsed Answer: What caused the nebula to spin?
◉ what happens when the diameter of the nebula was reduced?
Answer: The rate of the spin increased
◉ due to the interaction of the pressure and gravational forces, as
the nebula was spinning it became flatter and formed disks Answer:
What casued the Nebula to form disks?
◉ What is molecular outlfow? Answer: Collapse of the protosun
often followed by jets of dense gas
◉ What does the very high temps toward the centre of the nebula
mean for the innermost planet Mercury? Answer: That mercury is
volatile-poor; low water and carbon and rich in refactory phrases
such as iron
◉ Where are gas giants thought to form? Answer: Beyond the frost
line
◉ distnace in the solar nebula from the central protostar where it is
cold enough for volatile compoinds Answer: What is the frost line?
