Module 4- Real-World Physics Discussion
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Embry-Riddle Aeronautical University *
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102
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Aerospace Engineering
Date
Nov 24, 2024
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docx
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The Physics of Matter
During this module, I felt confident that I understood everything
that was being presented to me. However, this changed when I read
section 4.5b Archimedes’ Principle. I understood what causes the buoyant
force of an object however, I did not understand what determines the
amount of buoyant force on an object. Archimedes’ Principle is the
concept that I struggled with in this module. I looked up several different
definitions and examples in hopes of finding a simpler definition and
example from those the book gave us. Funny enough, I found a resource
that helped me better understand this concept however, it was a
children’s video on why boats float.
In the book, Inquiry into Physics, they define Archimedes’ Principle
as “the buoyant force acting on a substance in a fluid at rest is equal to
the weight of the fluid displaced by the substance” (Inquiry into Physics,
2018, p.149). The units involved with Archimedes’ Principle is Newtons (N)
and weight (lbs) or (kgs). There two forces acting on an object to make it
buoyant. The first force is the downward force and the next is the upward
force. Both units are measured in Newtons (N). In addition, volume (V),
fluid density (p) and gravity (g) are also a form of units when discussing
this principle.
Archimedes’ Principle impacts the military drastically. To start, The
Navy utilizes this principle in their construction plans of new or existing
ships. For example, the Archimedes’ Principle helps determine why a
99,000 metric ton Nimitz class aircraft carrier can float. In addition,
Archimedes’ Principle does not just apply to naval ships but also aircraft.
In order, for a plane to remain airborne, that aircraft must produce a mass
of air downwards that is equal to its own mass each second (Landell-Mills,
2017, para. 1).
I believe that Archimedes’ Principle is of extreme importance and
extremely relevant. Today, this principle is used for irrigation
development, calculating the buoyancy of an object, and calculating the
relative density of an object. Without this principle, we would not be able
to calculate the weight of water displaced equal to the weight of a boat for
it to float.
Video
(182) Archimedes Principle - Why do ships float? | #aumsum #kids
#science #education #children - YouTube
References
Nicholas, Landell-Mills. (2017).
Buoyancy Explains Flight.
Retrieved on
June 15, 2022, from extract---e-journal_gjsfr_a_vol_17_issue_1.pdf
Ostdiek, Bern J & Bord, Donald J. (2018).
Inquiry into Physics.
Cengage
Learning. Retrieved on May 26, 2022, from Inquiry into Physics
(virdocs.com)
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