Answer to essential questions from Unit 3.3

  • Fastener:A hardware device that mechanically joins or affixes two or more objects together. Joinery: The process of connecting or joining two pieces of wood together through the use of various forms of wood joints. In fine woodworking, common forms of joinery include dovetail joinery, mortise-and-tenon joinery, biscuit joinery, lap joints, spline joints, etc. Adhesives: Any synthetic product that is used to join materials together.

  • Adhesives: Any synthetic product that is used to join materials together. A solvent would be used to dissolve a substance such as an adhesive.

  • A design’s material makeup impacts the joinery, fasteners, and adhesive methods used to hold its components together because it determines what kind of joinery, fasteners, and adhesive methods should be used. For example you would not use glue to adhere pieces of metal together, you may instead weld them together, which you can not do with wood due to its flammability nor with ceramics do to risk of it exploding under extreme heat.

  • The factors that influence the selection of a material for use in a design are cost, durability, availability, weight, function, etc.



  • Designers must know the volume and surface area of an object because they must know how much space the object has inside it to put certain parts in the object and to see how much the object weighs to see if it can fit somewhere without breaking it.


  • Mass is a measure of how much matter an object has. Weight is a measure of how strongly gravity pulls on that matter. Thus if you were to travel to the moon your weight would change because the pull of gravity is weaker there than on Earth but, your mass would stay the same because you are still made up of the same amount of matter.




  • Force is an influence on a body or system, producing or tending to produce a change in movement or in shape or other effects. Stress is the action on a body of any system of balanced forces whereby strain or deformation results.


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