ENGN45_Quiz1-A
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School
City College of San Francisco *
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Course
45
Subject
Material Science
Date
Dec 6, 2023
Type
Pages
8
Uploaded by DBStanley
Quiz #1
Due
No due date
Points
10
Questions
10
Time Limit
None
Allowed Attempts
Unlimited
Instructions
Attempt History
Attempt
Time
Score
LATEST
Attempt 1
46 minutes
9.33 out of 10
Submitted Jan 20 at 1:47pm
This quiz covers the Introduction to Materials and Atomic Bonding.
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1 / 1 pts
Question 1
Pick the answer which, if put on the end of this sentence, makes it true:
The relationship between bonding force and bonding energy for the
different types of atomic bonding…
is the same for all the types of bonding, both primary and secondary.
Correct!
Correct!
Yes. The bond force curve and the bond energy curve have the
same general shape for all types of atomic bonding.
is different for the three types of primary bonding but is the same for all
the types of secondary bonding.
depends on the types of materials that are being bonded.
looks like: E = dF/da
is the same for the three types of primary bonding but different for the
secondary bonding forces.
1 / 1 pts
Question 2
What is Quantum Mechanics?
It is a theory that predicts probabilities in situations where classical
mechanics predicts certainties.
Correct!
Correct!
It is a set of principles and laws that govern all physical systems;
however, it is most relevant for systems of atomic and subatomic
entities.
Correct!
Correct!
Correct!
Correct!
It is a theory describing physical systems that came about because
classical mechanics failed to explain certain phenomenon.
It is a theory that addresses the fact that matter has wave-like properties
in addition to particle-like properties and the fact that waves have
particle-like properties in addition to their wave-like properties.
Correct!
Correct!
All of the answers are correct.
1 / 1 pts
Question 3
What is the relationship between the bonding force and the bonding
energy of an atomic bond?
The force is equal to the derivative of the energy with respect to the
separation distance.
Correct!
Correct!
Yes, this is right. The mathematical relationship looks like:
F = dE/da
The force is always greater than the energy.
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