Mechanical Engineering Exam 1 Ques ons and answers
With complete solu on UPDATED 2025/2026 NEW!!
Machine - Answers -A device that uses energy to do work to accomplish some desired ac vity
-They do not produce energy, but they do transmit and transform energy
-Machines can transmit a force, control its mo on, and change its direc on
-A machine is a system of components
Component - Answers A small piece that makes up a larger whole. Each component is there
for a specific job, but the sum of components
System - Answers A combina on of components
Mechanical Engineering - Answers -The designing of machines that contribute to society and
our quality of life
-Mechanical engineers apply the principles of mathema cs, chemistry, and physics to solve real-
world problems
Dimension - Answers -Describes a physical property of anything
-What we are measuring
Base Dimensions - Answers -Are independent of other dimensions
-They are limited in number
-length, mass, me, temperature, force
Derived Dimension - Answers -Derived from, or composed of, base dimensions
i.e. Area (length x width), Weight (mass x accelera on), velocity (length/ me)
, System Interna onal (SI) - 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 me-Seconds (S)
-Force is a derived unit measured in newtons (N)
US Customary - Answers A system adopted from an old Bri sh system of units in the 13th
century
-Engineering system
-Units: length-foot (5), me-second (s), force-(lbs)
-Mass is a derived unit called a slug
-Poli cal/Economic choice
-Awkward
Length - Answers The magnitude of something in a par cular direc on
Mass - Answers -The amount of atoms and molecules in something
-Ma8er 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 - Answers An indica on of kine c energy of mass at the molecular level
Area - Answers -A flat, two dimensional property
-Units of length mul plied by length describe area
-A=length x width
With complete solu on UPDATED 2025/2026 NEW!!
Machine - Answers -A device that uses energy to do work to accomplish some desired ac vity
-They do not produce energy, but they do transmit and transform energy
-Machines can transmit a force, control its mo on, and change its direc on
-A machine is a system of components
Component - Answers A small piece that makes up a larger whole. Each component is there
for a specific job, but the sum of components
System - Answers A combina on of components
Mechanical Engineering - Answers -The designing of machines that contribute to society and
our quality of life
-Mechanical engineers apply the principles of mathema cs, chemistry, and physics to solve real-
world problems
Dimension - Answers -Describes a physical property of anything
-What we are measuring
Base Dimensions - Answers -Are independent of other dimensions
-They are limited in number
-length, mass, me, temperature, force
Derived Dimension - Answers -Derived from, or composed of, base dimensions
i.e. Area (length x width), Weight (mass x accelera on), velocity (length/ me)
, System Interna onal (SI) - 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 me-Seconds (S)
-Force is a derived unit measured in newtons (N)
US Customary - Answers A system adopted from an old Bri sh system of units in the 13th
century
-Engineering system
-Units: length-foot (5), me-second (s), force-(lbs)
-Mass is a derived unit called a slug
-Poli cal/Economic choice
-Awkward
Length - Answers The magnitude of something in a par cular direc on
Mass - Answers -The amount of atoms and molecules in something
-Ma8er 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 - Answers An indica on of kine c energy of mass at the molecular level
Area - Answers -A flat, two dimensional property
-Units of length mul plied by length describe area
-A=length x width
