EAPS 105 QUIZZES UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

EAPS 105 QUIZZES UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
1. Quiz 1: Unit 1. Part 1. Question 1. Watch the Unit 1 Part 1 lecture video and answer the following
question: What is an astronomical unit (AU)?
Answer:
The distance from the Sun to the Earth

Question:
2. Quiz 1: Unit 1. Part 1. Question 2. Watch the Unit 1 Part 1 lecture video and answer the following
question: True/False: IN millions of years, our Moon will no longer be at the right distance from Earth to
form a perfect solar eclipse.
Answer:
True

Question:
3. Quiz 1: Unit 1. Part 1. Question 3. Watch the Unit 1 Part 1 lecture video and answer the following
question: What was Uranus' original name for 70 years?
Answer:
George

Question:
4. Quiz 1: Unit 1. Part 2. Question 4. Watch the Unit 1 Part 2 lecture video and answer the following
question: After the Big Bang, what did hydrogen atoms fuse into?
Answer:
Helium

Question:
5. Quiz 1: Unit 1. Part 2. Question 5. Watch the Unit 1 Part 2 lecture video and answer the following
question: Which of the following is correct regarding hydrogen?
Answer:
Hydrogen ions have no electrons and emit light.

Question:
6. Quiz 1: Unit 1. Part 2. Question 6. Watch the Unit 1 Part 2 lecture video and answer the following
question: Which of the following is correct regarding molecular hydrogen?
Answer:
Molecular hydrogen combines two hydrogen atoms.

Question:
7. Quiz 1: Unit 1. Part 2. Question 7. Watch the Unit 1 Part 2 lecture video and answer the following
question: What is the heaviest element (highest atomic number) that can be fused in a low-mass star?
Answer:
Oxygen

,Question:
8. Quiz 1: Unit 1. Part 2. Question 8. Watch the Unit 1 Part 2 lecture video and answer the following
question: What are the two forces that maintain balance within a star until fusion begins to slow down?
Answer:
Pressure and Gravity

Question:
9. Quiz 1: Unit 1. Part 2. Question 9. Watch the Unit 1 Part 2 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?
Answer:
It expands and cools down

Question:
10. Quiz 1: Unit 1. Part 2. Question 10. Watch the Unit 1 Part 2 lecture video and answer the following
question: What is the fate of our Sun?
Answer:
To collapse into a white dwarf and outgas its outer layers.

Question:
11. Quiz 2: Unit 1. Part 3. Question 1. Watch the Unit 1 Part 3 lecture video and answer the following
question: What is the fate of the largest stars?
Answer:
To collapse into a black hole and explode as a supernova

Question:
12. Quiz 2: Unit 1. Part 3. Question 2. 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?
Answer:
Iron

Question:
13. Quiz 2: Unit 1. Part 3. Question 3. Watch the Unit 1 Part 3 lecture video and answer the following
question: How many Earth masses of Iron are spread out by a typical supernova like that of Cassiopeia A?
Answer:
More than Fifty thousand Earth masses

Question:
14. Quiz 2: Unit 1. Part 3. Question 4. Watch the Unit 1 Part 3 lecture video and answer the following
question: What percent of your atoms are made from the remnants of stars and the big bang?
Answer:
100 percent

Question:
15. Quiz 2: Unit 1. Part 4. Question 5. 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.)

,Answer:
Dense cloud, accretion disc, stellar system, mass loss, diffuse cloud

Question:
16. Quiz 2: Unit 1. Part 4. Question 6. 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?
Answer:
Emission nebula

Question:
17. Quiz 2: Unit 1. Part 4. Question 7. Watch the Unit 1 Part 4 lecture video and answer the following
question: Where are stars born?
Answer:
Within molecular clouds

Question:
18. Quiz 2: Unit 1. Part 4. Question 8. Watch the Unit 1 Part 4 lecture video and answer the following
question: How is the force of gravity related to the distance between objects?
Answer:
Inversely proportional to the distance squared

Question:
19. 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?
Answer:
It will increase

Question:
20. Quiz 2: Unit 1. Part 4. Question 10. Watch the Unit 1 Part 4 lecture video and answer the following
question: What causes spinning nebula clumps to collapse into flat accretion discs?
Answer:
Collisions of objects perpendicular to the plane of rotation

Question:
21. Quiz 3: Unit 2. Part 3. Question 9. Watch the Unit 2 Part 3 lecture video and answer the following
question: Which type of meteorite does not come from a differentiated asteroid?
Answer:
Chondritic

Question:
22. Quiz 3: Unit 2. Part 3. Question 10. Watch the Unit 2 Part 3 lecture video and answer the following
question: Which of the following is evidence that the Moon formed from a giant impact?
Answer:
It has a small core

, Question:
23. Quiz 3: Unit 2. Part 3. Question 8. Watch the Unit 2 Part 3 lecture video and answer the following
question: What does it mean for an asteroid or planet to be differentiated?
Answer:
Its internal structure is layered with density increasing with depth.

Question:
24. Quiz 3: Unit 2. Part 2. Question 7. Watch the Unit 2 Part 2 lecture video and answer the following
question: How were chondrules formed?
Answer:
All the above are possible

Question:
25. Quiz 3: Unit 2. Part 2. Question 6. Watch the Unit 2 Part 2 lecture video and answer the following
question: What causes electrostatic attraction?
Answer:
The exchange of electrons between colliding objects

Question:
26. Quiz 3: Unit 2. Part 2. Question 5. Watch the Unit 2 Part 2 lecture video and answer the following
question: Which is the correct order of accretion to form planets?
Answer:
chondrules, planetesimals, protoplanets, planets

Question:
27. Quiz 3: Unit 2. Part 1. Question 4. Watch the Unit 2 Part 1 lecture video and answer the following
question: Where was the Lafayette Meteorite discovered?
Answer:
In a drawer at Purdue

Question:
28. Quiz 3: Unit 2. Part 1. Question 3. Watch the Unit 2 Part 1 lecture video and answer the following
question: Which of type of meteorites contain chondrules?
Answer:
Chondritic

Question:
29. Quiz 3: Unit 2. Part 1. Question 2. Watch the Unit 2 Part 1 lecture video and answer the following
question: What is a fusion crust?
Answer:
A thin surface coating on meteorites caused by melting when a meteor passes through the atmosphere

Question:
30. Quiz 3: Unit 2. Part 1. Question 1. Watch the Unit 2 Part 1 lecture video and answer the following
question: What are meteoroids?
Answer:
Small rocks (less than a few meters across) travelling through space.