Question 1

As core helium builds up it pushes the hydrogen into a _______.&#10;A) core&#10;B) atmosphere&#10;C) wind&#10;D) shell

Accepted Answer

As core helium builds up in a star, it pushes the hydrogen into a shell surrounding the core. This is a key process in the life cycle of stars, leading to the shell burning phase.

Question 2

As the sun's core heats up, the helium will begin to fuse in a process called ______.&#10;A) triple alpha fusion&#10;B) neutron fusion&#10;C) electron fusion&#10;D) neutrino fusion

Accepted Answer

The process where helium atoms fuse together in the sun's core as it heats up is known as triple alpha fusion. This process involves three helium-4 nuclei (alpha particles) coming together to form carbon.

Question 3

When electrons are forced very close together, they can stop collapse of a star. This is known as
________.

A) neutral degeneracy
B) electron degeneracy
C) black hole degeneracy
D) red giant degeneracy

electron degeneracy

Accepted Answer

Electron degeneracy pressure is the force that arises from the Pauli exclusion principle, which states that no two electrons can occupy the same quantum state at the same time. This pressure can prevent the collapse of a star by counteracting gravitational forces, particularly in white dwarf stars.

Question 4

The Sun will ascend into the giant region of the HR diagram.&#10;A) once.&#10;B) twice.&#10;C) three times.&#10;D) four times.

Accepted Answer

The answer of The Sun will ascend into the giant...

Question 5

When stars move up and to the right of the main sequence they are said to be in the _______ area.

Accepted Answer

The answer of When stars move up and to the...

Question 6

No two electrons can occupy the same energy level; this is because of the ______.

Accepted Answer

The answer of No two electrons can occupy the same...

Question 7

Stars spend as much time as a giant as a main sequence star.

Accepted Answer

Stars spend the majority of their lives in the main sequence phase, where they fuse hydrogen into helium. The giant phase is a later stage of a star's life and is significantly shorter in duration compared to the main sequence phase.

Question 8

High mass stars traverse the HR diagram horizontally as they evolve.

Accepted Answer

High mass stars move horizontally across the Hertzsprung-Russell (HR) diagram from the main sequence to the supergiant phase as they evolve, due to changes in temperature and luminosity.

Deck 63: Giant Stars