Review Test Submission_ Homework 1d, Background check - Part ..pdf

# Review Test Submission_ Homework 1d, Background check - Part ..pdf

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9/16/2017 Review Test Submission: Homework 1d, Background check - Part ... ; 1/9 Homework Homework 1, background knowledge Review Test Submission: Homework 1d, Background check - Part II H Review Test Submission: Homework 1d, Background check - Part II User Course Test Started 2017W1-EOSC114-101/102-The Catastrophic Earth: Natural Disasters Homework 1d, Background check - Part II 9/16/17 8:31 PM Submitted 9/16/17 9:12 PM Due Date 9/20/17 11:59 PM Status Completed Attempt Score 33 out of 38 points Time Elapsed 40 minutes out of 50 minutes Instructions EOS114 students: This is the second part of the first homework assignment. The goal is to review basic knowledge and skills that were learned during highschool. Please answer questions to the best of your abilities.We will provide some feedback on questions that seem to have caused the most trouble for all students taking the course. You will have two attempts. If - after the assignment is graded - you still have diﬃculty with any of the questions, re-visit the recommended resources. Your grade for this assignment will be the best score you achieve of all attempts. Results Displayed Feedback Question 1 Approximately how many years back in time did the Earth form? Response Feedback: Yes, good. And if you'd still like to brush up on concepts related to powers of ten and age of the Earth, seeTable 1.1 at or Question 2 The units for density are _____. My Connect Courses Library Resources Content Collection Ni An 3

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9/16/2017 Review Test Submission: Homework 1d, Background check - Part ... ; 2/9 Response Feedback: Yes good. If you are still wanting to check your understanding of density, recall that it's defined as a ratio; amount of mass in a given volume. Density is mass (what units?) per volume (what units?). Write that down as a fraction (ratio). Now ask yourself: force more stuff into a fixed volume (box, bottle whatever), does density of the stuff go up down or stay same? Force same amount of stuff into a smaller volume - density up, down, same? Etc. Google the concept, or see Question 3 The Earth’s inner and outer core regions are known to be respectively: Response Feedback: Yes, good, however Earth's interior is a huge subject. Some basic can be learned from these three short resources are Question 4 The value 3.5 x 10 4 kilometers (also written as 3.5 x 10^4) without power-of-ten notation is [a] (write in the number only!). The value that is 2 orders of magnitude smaller is [b] (a number only), and the value that is twice as big is written using power-of-ten notation as [c] (a number written using power-of-ten notation).
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