engin quiz week 9
What percentage of bachelor's degrees in mechanical engineering were given to women in 2017?
14.8%
What year was Newton's theory of gravitation published?
1687
When was the Institution of Mechanical Engineers founded?
1847
How many of Newton's laws of motion were discussed?
3
What is the percentage that engineering jobs are expected to grow in the next few years?
9%
Mechanical engineering is best described as which of the following?
A field that allows you to go in many different technical directions.
What is the mentioned general process of becoming a mechanical engineer?
Attend university, receive a degree in mechanical engineering, and apply for jobs.
Is the following statement true or false? "Center of gravity and center of mass are always equal."
F
Is the following statement true or false? "Mechanical engineers use a restricted-body diagram to show the system or object of interest isolated from everything else to identify and calculate all the forces on the object."
F
Is the following statement true or false? "Sports cars benefit from high centers of gravity."
F
Match the words in the left column with the correct descriptions in the right column.
In-service performance Mechanical engineers test the product. Recycle The components of a system can be reused. Upgrade Helps the product last longer.
Who is known as the "father of mechanical engineering"?
James Watt
What is one of the three mentioned tips that ASME provides to practice time management?
Learn to delegate.
What is one of the three steps mentioned in your lesson that aids the process of becoming a mechanical engineer?
Learn to work well on a team.
What is a step mentioned that aids the process of becoming a mechanical engineer?
Manage your time.
What is another step mentioned that aids the process of becoming a mechanical engineer?
Manage your time.
Which of the following was a main proponent of gravitational theory?
Sir Isaac Newton
A typical mechanical engineer is likely to use which software to model 3-D parts?
SolidWorks
Identify Newton's Three Laws. Newton's First Law an object will remain at rest or in equilibrium unless acted on by an external force Newton's Second Law the sum of all forces acting on an object (within a plane) equals the object's mass multiplied by its acceleration: F = ma Newton's Third Law every force has an equal and opposite reaction
T
Is the following statement true or false? "The automobile was the biggest mechanical engineering invention of the 19th century."
T
The force of gravity is inversely proportional to the square of what?
The distance between two objects.
What is the force of gravity directly proportional to?
The mass of an object.
Which of the following will not change a center of mass' location?
a non-uniform gravitational field
Where was the first steam engine created?
ancient Greece
Which invention was the biggest mechanical engineering invention of the 19th century?
automobile
What kind of discipline is mechanical engineering?
broad
Different densities of an object will affect which of the following?
center of gravity
Newton's third law states that a force has an opposite reaction that is in magnitude.
equal
What type of system do some bacteria use to propel themselves forward?
flagellum
What kind of diagram is used to analyze forces on an object?
free-body diagram
Which center of mass will be more likely to cause a system to tip?
high center of mass
According to Newton's second law, if you know an object's force and mass, you also know which of the following?
its acceleration
What type of centers of gravity do sports cars typically use?
low center of mass
What was the main reason the first computers were invented?
military research and funding
When a person pushes against a wall and it does not move, there is an equal force that the wall pushes back on the person. What is the name of that force?
normal force
Select all answers that give the most common examples of mechanical engineering.
robotics the design and manufacturing of planes factory design and layout
Newton's first law is a special scenario of which of his other laws?
second law
Which law states that the sum of the forces on an object equals its mass times acceleration?
second law
What is a type of 3D printing that uses a liquid resin that is hardened by using ultraviolet light?
stereolithography
Which type of 3D printing uses a liquid resin that is hardened by using ultraviolet light?
stereolithography
Which law states that every force has an equal and opposite reaction?
third law
Which is NOT a material able to be 3D printed?
uranium