EAPS 105: Asynchronous Quiz 19

Quiz 19: Unit 10. Part 2. Question 7. Watch the Unit 10 Part 2 lecture video and answer the following question: Which types of planets does the direct imaging method detect better than other methods? A) Planets far from their stars B) Planets close to their stars C) Planets around very distant stars D) Planets around very close stars

A) Planets far from their stars

Quiz 19: Unit 10. Part 1. Question 2. Watch the Unit 10 Part 1 lecture video and answer the following question: How does the transit method determine the diameter of an exoplanet? A) The size of the drop in the star's brightness B) The time between drops in the star's brightness C) The duration of time the starlight brightness remains dimmed

A) The size of the drop in the star's brightness

Quiz 19: Unit 10. Part 2. Question 8. Watch the Unit 10 Part 2 lecture video and answer the following question: What do the colors missing from the spectrum of starlight that passes through its atmosphere tell us about that atmosphere? A) Its temperature B) Its chemistry C) The level of radiation it receives D) Its origin

B) Its chemistry

Quiz 19: Unit 10. Part 1. Question 3. Watch the Unit 10 Part 1 lecture video and answer the following question: With the Doppler Effect, what changes when there is relative motion between the source of a wave and the observer? A) The direction of the wave B) The frequency of the wave C) The amplitude of the wave D) The speed of the wave

B) The frequency of the wave

Quiz 19: Unit 10. Part 2. Question 5. Watch the Unit 10 Part 2 lecture video and answer the following question: What phenomena does the gravitational microlensing method take advantage of? A) Light has a speed limit. B) The presence of a mass along its path causes light to bend. C) Light reflects off of objects D) The presence of a strong gravity causes light to dim

B) The presence of a mass along its path causes light to bend.

Quiz 19: Unit 10. Part 1. Question 1. Watch the Unit 10 Part 1 lecture video and answer the following question: How does the transit method determine the time it takes for an exoplanet to orbit its star? A) The size of the drop in the star's brightness B) The time between drops in the star's brightness C) The duration of time the starlight brightness remains dimmed

B) The time between drops in the star's brightness

Quiz 19: Unit 10. Part 2. Question 9. Watch the Unit 10 Part 2 lecture video and answer the following question: Looking at the absorption spectrum of sunlight passing through our atmosphere, which of the following would aliens not be able to detect? A) Oxygen B) Ozone C) Nitrogen D) Carbon Dioxide

C) Nitrogen

Quiz 19: Unit 10. Part 2. Question 6. Watch the Unit 10 Part 2 lecture video and answer the following question: Which types of planets does the gravitational microlensing method detect better than other methods? A) Planets far from their stars B) Planets close to their stars C) Planets around very distant stars D) Planets around very close stars

C) Planets around very distant stars

Quiz 19: Unit 10. Part 1. Question 4. Watch the Unit 10 Part 1 lecture video and answer the following question: Which of the following quantities can be obtained by combining information from the radial velocity and transit methods? A) The distance an exoplanet is from its star B) The diameter of an exoplanet C) The mass of an exoplanet D) All of the above can be obtained by both the radial and transit methods.

C) The mass of an exoplanet

Quiz 19: Unit 10. Part 2. Question 10. Watch the Unit 10 Part 2 lecture video and answer the following question: How is the James Webb Space Telescope an improvement over the Hubble Space Telescope? A) The James Webb is 100 times more powerful B) It can see through dust C) It can see objects that have redshifted beyond the visible spectrum D) All the above

D) All the above