EAPS 105: Asynchronous Quiz 2

) IQuiz 2: Unit 1. Part 3. Question 1. Watch the Unit 1 Part 3 lecture video and answer the following question: What is the heaviest element (highest atomic number) that can be fused in a low-mass star?

A) Helium

B) Carbon

C) Oxygen

D) Iron

C) Oxygen

Quiz 2: Unit 1. Part 3. Question 2. Watch the Unit 1 Part 3 lecture video and answer the following question: Once fusion in a star ceases and the core begins to collapse and heat up, what happens to the outer regions of the star?

A) It expands and heats up

B) It expands and cools down

C) It contracts and heats up

D) It contracts and cools down

B) It expands and cools down

Quiz 2: Unit 1. Part 3. Question 3. Watch the Unit 1 Part 3 lecture video and answer the following question: What is the fate of our Sun?

A) To collapse into a white dwarf and outgas its outer layers.

B) To collapse into a black hole and outgas its outer layers.

C) To collapse into a white dwarf and explode as a supernova.

D) To collapse into a black hole and explode as a supernova.

A) To collapse into a white dwarf and outgas its outer layers.

Quiz 2: Unit 1. Part 3. Question 4. Watch the Unit 1 Part 3 lecture video and answer the following question: What is the fate of the largest stars?

A) To collapse into a white dwarf and outgas its outer layers.

B) To collapse into a black hole and outgas its outer layers.

C) To collapse into a white dwarf and explode as a supernova.

D) To collapse into a black hole and explode as a supernova.

D) To collapse into a black hole and explode as a supernova.

Quiz 2: Unit 1. Part 3. Question 5. Watch the Unit 1 Part 3 lecture video and answer the following question: What is the heaviest element (highest atomic number) that can be fused in a massive stars?

A) Oxygen

B) Silicon

C) Iron

D) Lead

C) Iron

Quiz 2: Unit 1. Part 4. Question 6. Watch the Unit 1 Part 4 lecture video and answer the following question: Which is the correct sequence of the Solar Nebula Hypothesis? (Don't worry about the starting point, just the order since this is a cycle.)

A) stellar system, mass loss, dense cloud, accretion disc, diffuse cloud

B) mass loss, accretion disc, dense cloud, stellar system, diffuse cloud

C) dense cloud, accretion disc, stellar system, mass loss, diffuse cloud

D) accretion disc, stellar system, mass loss, dense cloud, diffuse cloud

C) dense cloud, accretion disc, stellar system, mass loss, diffuse cloud

Quiz 2: Unit 1. Part 4. Question 7. Watch the Unit 1 Part 4 lecture video and answer the following question: What kind of nebula are the first to form out of remnants of supernova?

A) Emission nebula

B) Molecular clouds

C) Dark nebula

D) All of the above

A) Emission nebula

Quiz 2: Unit 1. Part 4. Question 8. Watch the Unit 1 Part 4 lecture video and answer the following question: Where are stars born?

A) Within emission nebula

B) Within molecular clouds

C) Within both emission and dark nebula

D) In supernova explosions

B) Within molecular clouds

Quiz 2: Unit 1. Part 4. Question 9. Watch the Unit 1 Part 4 lecture video and answer the following question: According to the conservation of angular momentum, when the mass of a rotating object becomes more concentrated, what will happen to the rotation rate?

A) It will increase

B) It will decrease

C) It will remain the same

A) It will increase

Quiz 2: Unit 1. Part 4. Question 10. Watch the Unit 1 Part 4 lecture video and answer the following question: What causes already spinning nebula clumps to flatten into discs?

A) Gravity

B) Conservation of angular momentum

C) Collisions of objects perpendicular to the plane of rotation

D) All of the above

C) Collisions of objects perpendicular to the plane of rotation