Mechanical Engineering Exam 1 || with 100% Errorless Solutions.
5 views 0 purchase
Course
Mechanical Engineering
Institution
Mechanical Engineering
Machine correct answers -A device that uses energy to do work to accomplish some desired activity
-They do not produce energy, but they do transmit and transform energy
-Machines can transmit a force, control its motion, and change its direction
-A machine is a system of components
Component ...
Mechanical Engineering Exam 1 || with 100% Errorless
Solutions.
Machine correct answers -A device that uses energy to do work to accomplish some desired
activity
-They do not produce energy, but they do transmit and transform energy
-Machines can transmit a force, control its motion, and change its direction
-A machine is a system of components
Component correct answers A small piece that makes up a larger whole. Each component is
there for a specific job, but the sum of components
System correct answers A combination of components
Mechanical Engineering correct answers -The designing of machines that contribute to society
and our quality of life
-Mechanical engineers apply the principles of mathematics, chemistry, and physics to solve real-
world problems
Dimension correct answers -Describes a physical property of anything
-What we are measuring
Base Dimensions correct answers -Are independent of other dimensions
-They are limited in number
-length, mass, time, temperature, force
Derived Dimension correct answers -Derived from, or composed of, base dimensions
i.e. Area (length x width), Weight (mass x acceleration), velocity (length/time)
System International (SI) correct answers The standard system of units that uses base 10 and
used in the rest of the world.
-US does not use, but Great Britain does
-Base Units: mass-kilograms (kg), length-meters (m), and time-Seconds (S)
-Force is a derived unit measured in newtons (N)
US Customary correct answers A system adopted from an old British system of units in the 13th
century
-Engineering system
-Units: length-foot (ft), time-second (s), force-(lbs)
-Mass is a derived unit called a slug
-Political/Economic choice
-Awkward
Length correct answers The magnitude of something in a particular direction
, Mass correct answers -The amount of atoms and molecules in something
-Matter is energy that has become solid
-An object gains mass when it gains more energy and vice a versa
-Units: SI-kgs and USA: Slugs, lbs
Temperature correct answers An indication of kinetic energy of mass at the molecular level
Area correct answers -A flat, two dimensional property
-Units of length multiplied by length describe area
-A=length x width
Volume correct answers -Three-dimensional property measured in units of length times length
times length
-V=length x width x height
Units for Pressure correct answers -psi
-newtons
-pascals
Metrology correct answers The branch of science and engineering involving measurement
Engineers and scientists need a common language correct answers Dimensions and units
Dimensions are measured by units correct answers ...
Units correct answers Used to measure or quantify
-US Common: Absolute and Gravitational
-SI: absolute
Conversions correct answers -Allows comparison between different measuring systems and units
-Necessary to market internationally
Effort correct answers -The force simple machines use to do work on a single load or against a
single force
-When a simple machine increases a force it is at the expense of a decrease in the distance the
load is moved
-When the work done by the effort just equals the work done by the load, no movement of the
machine will occur
-When the work done by the effort exceeds the work done by the load, the load will move
Mechanical Advantage correct answers -If the force needed to operate the machine (input force)
is less than the force being opposed or the load being moved (output force)
-The ratio of the output force divided by the input force
-If the number is greater than one, there is a mechanical advantage equal to that number
Inclined Plane correct answers -A flat, sloping surface
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller FullyFocus. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.19. You're not tied to anything after your purchase.