Module 7 - Concept Check: PHYS 123 Science of Flight - Oct 2023 - Online
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School
Embry-Riddle Aeronautical University *
*We aren’t endorsed by this school
Course
123
Subject
Mechanical Engineering
Date
Jan 9, 2024
Type
Pages
11
Uploaded by AmbassadorFogZebra6
Due
Dec 3 at 8:59pm
Points
100
Questions
15
Available
Nov 26 at 9pm - Dec 3 at 8:59pm
Time Limit
None
Allowed Attempts
2
Instructions
The purpose of the concept checks is to evaluate your grasp of the basic module
content and to allow you to practice written communication, quantitative
reasoning, problem-solving, and real-world application.
The concept checks are untimed open book/open notes quizzes, containing
multiple-choice, matching, numerical answer questions, that will focus on your
comprehension, application, and analysis of the material.
Quiz questions are presented one at a time. Use caution
in navigating back to a previous question
– answers are only saved by selecting Save or navigating forward to the next question.
Attempts: You will have two attempts; the higher scoring attempt will be your final score. Questions
are pooled, so you will not see the same questions on different attempts.
Time limit:
None
Grading:
All questions are scored immediately after quiz submission. Quiz Review:
You will be able to review the quiz questions, your answers, and automatic
feedback once
, immediately after submitting the quiz. Incorrect answers will be marked, but the
correct answers to those questions will not be shown. Contact your instructor for clarification on
incorrect answers if needed.
Tips for Success
Review all content and resources provided in the module lesson.
Ask questions. Use the Online Office or email your instructor.
Even though the quiz is not due until the end of the module, preparing for and taking the first
attempt early in the module is highly recommended. Immediately after submitting the first
attempt, you will have one opportunity to review your submission to see which questions you got
wrong. Taking the first attempt early allows time to seek or ask for clarification on the wrong
answers prior to taking the second attempt.
Knowledge Assessment
This activity supports Module Objectives 1, 3, 4, 5, and 6 Learning Outcome 7.
(https://erau.instructure.com/courses/164450/pages/module-7-overview-and-objectives)
Module 7
Concept Check
Attempt History
Attempt
Time
Score
LATEST
Attempt 1 60 minutes
95 out of 100
Correct answers are hidden.
Score for this attempt: 95
out of 100
Submitted Nov 30 at 7:51pm
This attempt took 60 minutes.
Take the Quiz Again
7.5 / 7.5 pts
Question 1
Applying what was presented in the video "Predicting Bond Type" in the
Module 7 Lesson "Aluminum, Alloys, and Corrosion":
The bonds between the atoms of an aluminum oxide (Al
O
) molecule
are: 2
3
metallic none of these are correct covalent ionic 7.5 / 7.5 pts
Question 2
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According to the video "Predicting Bond Type" in the Module 7 Lesson
"Aluminum, Alloys, and Corrosion":
Which of the following are properties of metals? (Choose all that apply.)
brittle conduct electricity shiny low density solid at room temperature 7.5 / 7.5 pts
Question 3
According to the video "Predicting Bond Type" in the Module 7 Lesson
"Aluminum, Alloys, and Corrosion":
Most of the atoms on the period table are classified as metals.
True False 7.5 / 7.5 pts
Question 4
Answer 1:
Answer 2:
Answer 3:
Aluminum is a [ Select ]
. In its solid state, it is [ Select ]
with [ Select ]
structure. metal crystalline face-centered cubic 7.5 / 7.5 pts
Question 5
Which of the following describe properties of aluminum? (choose all that
apply)
malleable does not react with oxygen crystal structure in solid form brittle efficiently recyclable
5 / 5 pts
Question 6
What is the primary cause of static electricity on aircraft? radio frequency interference friction between the aircraft and air corona discharge charge accumulation due to lightning strikes 0 / 5 pts
Question 7
Incorrect
Incorrect
Which of the following conditions would be least likely
to cause static
electricity to accumulate on aircraft? warm air with humidity >50% but no precipitation cold air with humidity >20% cold air with ice crystals and humidity <20% Refer to the Module 7 Lesson "Electricity and Aircraft."
5 / 5 pts
Question 8
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Answer 1:
Answer 2:
Answer 3:
Answer 4:
Based on your experiments with the Balloons and Static Electricity
simulation (PhET), complete the following sentences:
The initial charge of the balloon is [ Select ]
.
When this balloon is placed near the wall, It stays where it is placed
(because buoyant forces are ignored in this simulation) . Once the
balloon is rubbed on the sweater, [ Select ]
charges are transferred to the [ Select ]
.
neutral It stays where it is placed (because buoyant forces are ignored in this
simulation)
negative balloon 5 / 5 pts
Question 9
Answer 1:
Answer 2:
Answer 3:
Based on your experiments with the John Travoltage simulation (PhET),
complete the following sentences:
When John's foot is dragged across the carpet, [ Select ]
charges accumulated [ Select ]
. When his hand is moved near the metal
doorknob, the negative charges moved through his body towards the
point nearest the doorknob . negative on John's body the negative charges moved through his body towards the point nearest
the doorknob
7.5 / 7.5 pts
Question 10
What is the primary result of static electricity discharge that is
problematic for aircraft? light pollution burned circuits
radio frequency interference structural integrity failure 7.5 / 7.5 pts
Question 11
Katunin et al. (2016) refer to some aircraft material as dielectric. The
authors present pictures of a lightning strike producing a burned area.
What was the aircraft material of concern? aluminum alloy wood framing steel alloy epoxy resin 7.5 / 7.5 pts
Question 12
A copper pipe at an airport hanger has been corroded by water,
releasing copper ions into solution. If this water is used to rinse an
aircraft with an aluminum skin, what type of corrosion could result? galvanic corrosion stress corrosion direct chemical attack
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deposition corrosion 7.5 / 7.5 pts
Question 13
Answer 1:
Answer 2:
According to the video "Redox Reactions, Crash Course Chemistry #10"
in the Module 7 Lesson "Aluminum, Alloys, and Corrosion":
electrons are what make it possible for atoms to bond to form molecules,
and when this takes place, a tremendous amount of energy can be
exchanged. electrons energy 7.5 / 7.5 pts
Question 14
A ______ contains two or more distinct individual materials.
composite metal alloy
5 / 5 pts
Question 15
What type of polymer can be melted and reformed? thermoset thermodynamic thermoplastic thermocyclic Quiz Score: 95
out of 100
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