Star Formation

Which of the following is the most accepted theory about the formation of the universe that explains why it continues to expand?

• Big Bang Theory

• Divine Creation Theory

• Steady State Theory

• Oscillating Theory

Which of the following is not considered as light elements?

• Helium

• Hydrogen

• Lithium

• Iron

Which of the following is TRUE about nucleosynthesis?

• It is the division of the atomic particle

• The combination of elements to form compound

• It is the creation of everything including all matter in the universe

• It is the process of creating new atomic nuclei from pre-existing nuclei

Which element is the lightest and at the same time the most abundant in outer space?

• Hydrogen

• Helium

• Lithium

• Iron

How do heavier elements form?

• Through combustion

• Through nuclear fission

• Through nuclear fusion

• Through nuclear synthesis

Which element can be formed when three atoms of helium are fused?

• Carbon

• Hydrogen

• Oxygen

• Silicon

Which process is responsible for the formation of elements at the center of a star?

• Big bang nucleosynthesis

• Nuclear fusion

• Stellar nucleosynthesis

• Supernova nucleosynthesis

Which element will be formed when the carbon atom is combined with the Helium atom?

• Magnesium

• Neon

• Oxygen

• Silicon

Why do average stars have a longer life span than massive stars?

• They have less fuel to burn

• They have more fuel to burn

• They burn their fuel at the fastest rate

• They burn their fuel at a speedy rate

Which phase of the star life cycle is our Sun?

• Main-sequence star

• planetary nebula

• Red giant

• White dwarf