- ERSC-1P92-D02-S01-ASY - Brock

Assignment 1 (Submit by Thursday, October 5th at 11:59 pm) - Results Attempt 1 of 1 Written Oct 2, 2023 4:14 PM - Oct 5, 2023 10:28 PM Attempt Score 34.5 / 45 - 76.67 % Overall Grade (Highest Attempt) 34.5 / 45 - 76.67 % Question 4 In Figure B, Which of the following STATEMENTS IS CORRECT? Unit D was deposited BEFORE Unit J and therefore "D" is OLDER Correct Answer Unit B was intruded AFTER Unit F and therefore "B" is YOUNGER Incorrect Response Unit H was deposited BEFORE Unit F and therefore "H" is OLDER Units A, G and I are all OLDER than Unconformity "E" All of the above are correct Question 16 Based on the information found in modules 2.1, 2.2 AND 2.3 put the following statements about the formation of the Solar system and planets and moons in the correct order from 1. ''OLDEST EVENT'' (first to form according to the Nebular hypothesis) to 5. ''YOUNGEST EVENT'' (Last to form in the Solar system, based on the sequence of events listed) Incorrect Response __5__ (3) Third EVENT in this SEQUENCE Incorrect Response __4__ (2) Second OLDEST EVENT Incorrect Response __3__ (5) YOUNGEST EVENT Incorrect Response __2__ (4) Second YOUNGEST EVENT __1__ OLDEST EVENT 1 . As the density of the centre of the accretion disk increased along with its temperature the core of the nebula became the protosun. 2 . Within the cloud swirling eddies developed drawing matter towards their centres to form the protoplanets 3 . As the protosun became even hotter, gases were driven off the inner region of the Solar System 4 . The protoplanets became solid planets and continued their orbit, governed by the initial spin of the nebula 5 . The planets differentiated into layers as they slowly cooled Question 17 Based on the The Torino Scale diagram below, if the DIAMETER of a meteor is 950 m and the COLLISION PROBABILITY is 1 in 7.5 then the TORINO SCALE VALUE would be (fill in a number from 0 to 10) ___9___ Incorrect Response (5) and the CONSEQUENCE would be (write in either Global, Regional, Local or No Consequence) - spelling counts! ___Regional___ (50 %) Question 18 Based on the The Torino Scale diagram below, if the KINETIC ENERGY of a meteor is 50,000,000 MT and the COLLISION PROBABILITY is 1 in 1000 then the TORINO SCALE VALUE would be (fill in a number from 0 to 10) ___2___ Incorrect Response (6) and the CONSEQUENCE would be (write in either Global, Regional, Local or No Consequence) - spelling counts! ___Global___ (50 %) Question 21 Based on the The Torino Scale diagram below, if the DIAMTER of a meteor is 80 m and the COLLISION PROBABILITY is 1 in 80 then the TORINO SCALE VALUE would be (fill in a number from 0 to 10) ___8___ Incorrect Response (3) and the CONSEQUENCE would be (write in either Global, Regional, Local or No Consequence) - Spelling counts! ___Local___ (50 %) Question 22 It is stated in Epoch 1 that by April 3, 2023 the probability of impact with Asteroid 2023 PDC is about 1%. It is estimated that if 2023 PDC were to impact it would release up to 5.5 GT (or 5500 MT) of energy. You are on the JPL (Jet Propulsion Laboratory) team and are asked to let the rest of the scientists know what the Torino scale value(s) could be. Your answer is Only 1 Only 2 Correct Answer Only 4 Incorrect Response 2 and 4 are possible 1, 2 and 4 are possible Question 28 Based on the assessments made by the JPL team as of November 27, 2025 the GREATEST risk of impact hazard from Asteroid 2023 PDC would be from: Tsunami Correct Answer Blast and Thermal effects Global effects Incorrect Response All of the above None of the above Question 29 In Module 2.9 Some asteroid collision avoidance strategies are mentioned. Based on the information discussed in the PDF from Epoch 2 from the 2023 PDC scenario which asteroid collision avoidance strategy (or multiple strategies) was considered as having the BEST chance of success of FULL deflection. (HINT: Start reading from page 15 in PDF) Land astronauts Correct Answer Incorrect Response Detonate nuclear explosives Attach 'solar sails' Attach rockets Incorrect Response Kinetic impactors Question 30 Is the DART mission designed to be used for the size and mass of Asteroid 2023 PDC? Answer the question in point form by copying and pasting the text below and fill in your answers beside each sentence List the (average diameters) of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I:(0.5 mk) List the (average mass) of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I :(0.5 mk) Compare and contrast the diameters and masses of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I:(1 mk) Is the DART mission designed to be used for the size and mass of Asteroid 2023 PDC (explain)?(2 mk) *Below is an Example of how to format your answer -the answers given in the example are NOT correct – so do not copy and paste them for your assignment answers! List the (average diameters) of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I: (0.5 mk) Asteroid 2023 PDC = 10 km; 65803 Didymos = 5 km; Dimorphos I = 5 km List the (average mass) of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I: (0.5 mk) Asteroid 2023 PDC = 100 kg; 65803 Didymos = 25 kg; Dimorphos I = 25 kg Compare and contrast the diameters and masses of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I: (1 mk) 65803 Didymos and Dimorphos I have the same diameter and mass as each other. Asteroid 2023 PDC has a higher mass and diameter as compared to 65803 Didymos and Dimorphos I each individually. Is the DART mission designed to be used for the size and mass of Asteroid 2023 PDC (explain)?(2 mk) The DART mission was designed to impact both 65803 Didymos AND Dimorphos I which both have the same combined diameter as well as combined mass as Asteroid 2023 PDC, therefore the DART mission could also (theoretically) be used to alter the orbit of Asteroid 2023 PDC. List the (average diameters) of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I:(0.5 mk) Avg. size of 2023 PDC = 700 m (2300 ft) Didymos = 780 meters in diameter Dimorphos = 160 meters in diameter List the (average mass) of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I :(0.5 mk) Avg. mass of 2023 PDC = 400 billion kg Didymos 528 billion kg Dimorphos 4.8 billion kg Compare and contrast the diameters and masses of Asteroid 2023 PDC, 65803 Didymos and Dimorphos I:(1 mk) Asteroid 2023 PDC is smaller and heavier than Didymos according to the average diameter and mass, but is significantly bigger than Dimorphos in terms of diameter and mass. Is the DART mission designed to be used for the size and mass of Asteroid 2023 PDC (explain)?(2 mk) The DART mission was designed to investigate and demonstrate a method of changing an asteroid's trajectory by impacting it, redirecting the asteroids motion in space. Because the DART mission was used to redirect the astroid Didymos and Dimorphos, theoretically it is certain that it would also be successful in redirecting Asteroid 2023 PDC because via comparison, Asteroid 2023 PDC is much smaller than asteroid Didymos. The correct answer is not displayed for Written Response type questions. Hide question 30 feedback DART designed to impact Dimorphos I - smaller than PDC or Didymos Done