Module 1

Which of the following is a stellar core formed when the fragments of a collapsed molecular cloud contract?

• Protostar

• Supernova

• Red Giant

• Main Sequence Star

Which of the following is a star that has used up its hydrogen supply in the core and switched into the thermonuclear fusion of hydrogen in the shell surrounding the core?

• Protostar

• Supernova

• Red Giant

• Main Sequence Star

The formation of a star starts with the dense regions of molecular clouds. What force pulls matter together to form these regions?

• Magnetic Force

• Nuclear Force

• Electromagnetic Force

• Gravitational Force

True or False. The element silicon was formed through the fusion of magnesium.

• True

• False

Which of the following elements are not formed during stellar evolution?

• Carbon

• Oxygen

• Gold

• Iron

True or False. The element oxygen was formed from carbon fusion while neon was formed from the fusion of nitrogen.

• True

• False

Which of the following processes is likely to generate the heaviest element?

• CNO Cycle

• r – process

• triple alpha process

• Big Bang Nucleosynthesis

d + n

• H + y

• ³H + y

• ³He + y

• ³He + n + y

³He + ____ = ⁴He + y

• n

• p

• d

• y

⁴₂He + ⁴₂He + _____

• ¹⁰ ₄Be

• ⁸ ₄Be

• ⁸₈Be

• ⁸ ₄Be + y