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PLTW POE L 2-1
Honors PLTW Principles of Enginering Level 2-1 Statics
| Vocab Word | Definition |
|---|---|
| Cable | A strong rope designed to be used in structures |
| Centroid | Geometric Area Center |
| Compression Force | Body subjected to a push |
| Concurrent Force Systems | Force system where all forces are applied at the common point on the body or having lines of action with a common intersection point |
| Cross-Sectional Area | Surface or shape thats exposed by making a straight cut through something at right angles to the axis |
| Direction of a Vector | Defined by the angles between the reference axis and the arrow's line of direction |
| Fixed Support | Support that prevents translation and beam rotation |
| Flange | Broad ridge or pairs of ridges projecting at a right angle from its environment, showing external forces acting upon it |
| Free Body Diagram | Used to isolate a body from its environment, showing external forces acting upon it |
| Gusset | Plate or bracket for strengthening an angle in framework |
| Joint | Connection points of members of a truss |
| Magnitude | Absolute value of a number |
| Member | Slender straight pieces of a truss connected by joints |
| Method of Joints | Method of analysis of trusses which constructs free body diagrams of each joint and determines the forces acting in that joint considering equilibrium of the joint pin |
| Moment | Turing effect of force about a point equal to the magnitude of the force times the perpendicular distance from the point to the line of action from the force |
| Moment of Inertia | Mathematical property of cross sections that is concerned with surface areas and how areas are distributed about a centroidal axis |
| Newtons 1st | Inertia: Things keep doing whatever they all ready are doing. |
| Newton's 2nd | Particles continue at a state of rest |
| Newton's 3rd | If bodies exert a force on another then the 2nd body exerts force on the 1st body |
| Pinned Support | Support that prevents translation |
| Planar Truss | Lies in a single plane often to support roofs and bridges |
| Resultant Force | Resultant of a system of force is the vector sum of all forces |
| Roller Supports | Support that prevents beams from translating in 1 direction |
| Scalar | Physical quantity that has magnitude only |
| Sense | Sense of a vector is the direction of the vector relative to its path and indicated by the location of the arrow. |
| Simple Truss | Composed of triangles, which will retain its shape even when removed from supports |
| Static Equilibrium | 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 |
| Statically Indeterminate | Structure or body which is over-constrained such that there are more unknown supports than there are equations of static equilibrium |
| Structure | Something made up of interdependent parts in a definite pattern of organization, like trusses, machines and frames |
| Tension Force | Body subjected to a pull |
| Vector Quantity | Quantity that has both magnitude and direction |
Created by:
ExciteBikeFan14
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