EAPS 105: Asynchronous Quiz 15
Quiz 15: Unit 8. Part 1. Question 2. Watch the Unit 8 Part 1 lecture video and answer the following question: What is regolith? A) Small asteroids resulting from a collision of a larger one. B) Large boulders often found scattered on airless surfaces. C) Regolith is the outer layer of an asteroid made up of ice and gas. D) A layer of dust and small particles that rain down on their surface after impacts.
D) A layer of dust and small particles that rain down on their surface after impacts.
Quiz 15: Unit 8. Part 2. Question 6. Watch the Unit 8 Part 2 lecture video and answer the following question: Why is do comets have an average density less than that of ice? A) Because they contain a lot of hydrogen. B) Because they are extremely hot inside. C) Because they have small gravities. D) Because they have a significant amount of empty space in their interiors.
D) Because they have a significant amount of empty space in their interiors.
Quiz 15: Unit 8. Part 2. Question 10. Watch the Unit 8 Part 2 lecture video and answer the following question: What happened to the Philae lander when it reached the surface of comet 67P? A) It landed upside down. B) It crashed and was destroyed. C) It used harpoons to grab the surface. D) It bounced.
D) It bounced.
Quiz 15: Unit 8. Part 1. Question 3. Watch the Unit 8 Part 1 lecture video and answer the following question: What is unusual about asteroid Bennu compared to larger asteroids? A) It has no regolith B) It is made of almost all ice C) It is made of almost all metal D) It orbits in the opposite direction of the rest of the asteroid belt
A) It has no regolith
Quiz 15: Unit 8. Part 2. Question 7. Watch the Unit 8 Part 2 lecture video and answer the following question: Why do comets readily come apart before impact? A) Rapid degassing tears them apart. B) Because they are a loose collection of rocks (a rubble pile). C) They have a metallic component that is repelled by the magnetic field. D) Because they are made of a soft, gooey material.
B) Because they are a loose collection of rocks (a rubble pile).
Quiz 15: Unit 8. Part 2. Question 8. Watch the Unit 8 Part 2 lecture video and answer the following question: Which is a characteristic of a comet gas tail? A) It is illuminated from reflected sunlight. B) It points away from the Sun. C) It points away from the Sun and rotates away from the direction the comet is traveling. D) It is swept away from the comet by pressure from sunlight.
B) It points away from the Sun.
Quiz 15: Unit 8. Part 1. Question 5. Watch the Unit 8 Part 1 lecture video and answer the following question: Which is not a reason why the asteroid belt could never become a planet? A) There is not enough mass to build a planet. B) Jupiter's gravity keeps large bodies from accreting in that orbit. C) Mars' gravity keeps large bodies from accreting in that orbit. D) All the above
C)
Quiz 15: Unit 8. Part 1. Question 1. Watch the Unit 8 Part 1 lecture video and answer the following question: What do most asteroids look like? A) Spherical shaped with smooth surfaces B) Spherical shaped with rough surfaces containing many sharp edges C) Irregularly shaped with smooth surfaces D)Irregularly shaped with rough surfaces containing many sharp edges
C) Irregularly shaped with smooth surfaces
Quiz 15: Unit 8. Part 2. Question 9. Watch the Unit 8 Part 2 lecture video and answer the following question: Which is a characteristic of a comet dust tail? A) It is illuminated by excitation from ultraviolet light. B) It points away from the Sun. C) It points away from the Sun and rotates away from the direction the comet is traveling. D) It is swept away from the comet by the solar wind.
C) It points away from the Sun and rotates away from the direction the comet is traveling.
Quiz 15: Unit 8. Part 1. Question 4. Watch the Unit 8 Part 1 lecture video and answer the following question: Where do the Trojan asteroids orbit? A) Between Mars and Jupiter B) Between the Sun and Mercury C) Within Jupiter's orbit D) Between the Earth and Mars
C) Within Jupiter's orbit
