POE Key Terms Quiz

Definition	Term/Answer
The connection points of member of a truss.
The change of motion of the body is proportional to the net force imposed on the body and is in the direction of the net force.
Machining a surface to size with a fine feed produced in a lathe, milling machine, or grinder.
A method of analyis of trusses which constructs free body diagrams of each joint and determines the forces acting in that joint by considering equilibrium of the joint pin.
Solid material which is composed of two or more substances having different physical characteristics and in which each substance retains its identity while contributing desirable
A body subjected to a pull.
A truss that lies in a single plane often used to support roofs and bridges
Those properties of a material that reveal the elastic and inelastic reaction when force is applied, or that involve the relationship between stress and strain; for example, the mo
A mathematical property of a cross section that is concerned with a surface area and how that area is distributed about a centoidal axis.
A body subjected to a push.
Processes that remove material to change the size, shape, or surface of a part. There are two groups of separating processes: machining and shearing.
A plate or bracket fro strengthening an angle in framework.
A broad ridge or pair of ridges projecting at a right angle from the edge of a structural shape in order to strengthen or stiffen it.
A support that only prevents a beam from translating in one direction.
Slender straight pieces of a truss connected by joints.
Any of numerous natural and synthetic compounds of usually high molecular weight consisting of up to millions of repeated linked units, each a relatively light and simple molecule.
A diagram used to isolate a body from its enviroment, showing all external forces acting upon it.
The resultant of a system of a force is the vector sum of all forces.
A surface or shape exposed by making a straight cut through something at right angles to the axis.
A support that prevents translation in any direction.
The sense of a vector is the direction of the vector relative to its path and indicated by the location of the arrow.
A systemized body of laws; a set of principles, as of ethics.
The direction of a vector is defined by the angle between a reference axis and the arrow's line of direction.
A force system where all of the forces are applied at a common point on the body or having thier lines of action with a common intersection point.
A process that changes the size and shape of a material by a combination of force and a shaped form.

Definition	Term/Answer
A condition where there are no net external forces acting upon a particle or rigid body and the body remains at rest or continues at a constant velocity.
A phyisical quantity that has magnitude only.
Returning to an original condition, The extraction and recovery of valuable materials from scrap or other discarded materials.
Properties other than mechanical properties that pertain to the physics of a material and can usually be measured without the application of force.
A tool for systematically ranking alternatives according to a set of criteria.
The geometric center of an area.
A strong rope, usually made of metal, designed to have great tensile strength and to be used in structures.
A structure or body which is over-constrained such that there are more unknown supports than there are equations of static equilibrium.
The process of creating an object by adding small pieces or layers together to make a final product.
Produced by the combining of parts or elements to form a a whole, rather than of natural origin; not real, artificial.
Of or relating to the manufacture of any product (as earthenware, porcelain, or brick) made essentially from a nonmetallic mineral (as clay) by firing at a high temperature.
A quantity that has both a magnitude and direction.
The turning effect of a force about a point equal to the magnitude of the magnitude of the force times the perpendicular distance from the pont to the line of action from the force
Any of various opaque, fusible, ductile, and typically lustrous substances thare good conductors of electricity and heat.
To make into a product suitable for use; to make from raw materials by hand or by machinery; to produce according to a organized plan and with division of labor.
Something made up of interdependent parts in a definite pattern of organization, such as trusses, frames, or machines.
If one body exerts a force on a second body, then the second body exerts a force on the body and is in the direction of the net force.
The elements, constituents, or substances of which something is composed or can be made; matter taht has qualities which give it individuality and by which it may be categorized.
Crude or processed material that can be converted by manufacture, processing, or combination into a new and useful product; something with a potential for improvement, development,
Stages a product goes through from concept and use to eventual withdrawawl from the market place.
Anything for which a person is legally bound or responsible
A support that prevents translation and rotation in a beam.
A truss composed of triangles which will retain its shape even when removed from supports.
Every body or particle continues at a state
The absolute value of a number.

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