Physical Science Assessment

What was the result of this nucleosynthesis reaction?

• Tritium

• Helium-4

• Helium-3

• Lithium-7

What are missing particles and the product of the reaction?

• Helium-4, photon and Helium-3

• deuterium, neutron and Helium-4

• Helium-3, proton (y) and Beryllum-7

• Helium-4, photon (y) and Lithium-7

In this process, protons and neutrons are added in the process to produce Carbon-12(12C). The protons are converted to proceed in the cycle. What are those two elements?

• 13C and 14N

• 12C and 14C

• 13N and 15O

• 13N and 15N

Which of the following is TRUE about the equation below? 612C + 24He→____

• To get the missing element, you have to add the atomic number of carbon and helium and that is 8 so the element is oxygen.

• To get the missing element, you have to subtract the atomic number of carbon and helium and that is 4 so the element is beryllium.

• To get the missing element, you have to add the atomic mass of carbon and helium and that is 16 so the element is oxygen.

• To get the missing element, you have to subtract the atomic mass of Carbon and Helium and that is 8 so the element is beryllium

Given this, identify which of the following elements is not typically classified as a "light element" in astrophysical processes:

• Helium (He)

• Lithium (Li)

• Hydrogen (H)

• Uranium (U)

Among the elements listed below, identify which one holds this dual distinction, playing a fundamental role in the structure and evolution of the universe:

• Helium (He)

• Lithium (Li)

• Hydrogen (H)

• Carbon (C)

With this scenario in mind, which of the following processes is responsible for the formation of elements at the center of a star?

• Big Bang nucleosynthesis

• Nuclear fusion

• Stellar nucleosynthesis

• Supernova nucleosynthesis

Based on its characteristics and evolution pattern, which phase is our Sun currently in?

• Main Sequence Star

• Planetary Nebula

• Red Giant

• White Dwarf

When does a star become unstable?

• When it runs out of fuel

• When it contracts and expands

• When its core is converted to Iron

• When the outer shell of star is pulled by the gravity from the center

Which of the following statements is FALSE?

• The core of red giant star is made up of carbon

• The average star has shorter life span

• The more massive the star is the faster it burns its fuel

• No elements heavier than Iron can be produced in a massive star