Physical Science 3rd Quarter Exam

Which of the following asserts that stars are formed when a dense region of molecular cloud collapse?

• Big Bang Theory

• Evolution Theory

• Creation Theory

• Star Formation Theory

Which refers to the fragments of clouds that contract and form a stellar core?

• Protostar

• Red giant

• Supernova

• White dwarf

What will be formed when a protostar attains its gravitational equilibrium?

• Main sequence star

• Red Giant

• Supernova

• White dwarf

Where do hydrogen and helium fuse in a main sequence star?

• Core

• Crust

• Inner core

• Mantle

Helium will be converted into what after its fusion with two more helium atoms?

• Argon

• Carbon

• Chlorine

• Oxygen

When a star has used up all the hydrogen in its core, hydrogen will be converted into helium in the layer immediately surrounding the core. What stage of star formation is this?

• Protostar

• Red giant

• Supernova

• White dwarf

During red giant formation, what element will be produced by the fusion of oxygen with helium?

• Helium

• Hydrogen

• Neon

• Silicon

During red giant formation, what element will be produced by the fusion of neon with helium?

• Carbon

• Magnesium

• Manganese

• Silicon

During red giant formation, what element will be produced by the fusion of silicon with another silicon atom?

• Argon

• Boron

• Iron

• Gold

At what stage does the outer covering of a star blow due to insufficient energy?

• Protostar

• Red giant

• Supernova

• White dwarf