Tech Workd Specific Definitions Flashcards
(18 cards)
What is compression?
Crushing of a material due to external forces
Examples: hands squeezing a wet sponge, a foot crushing a can, bed springs
What is tension?
Stretching of a material due to external forces
Examples: copper wire being pulled, rope in a tug of war, slingshot band
What is torsion?
Twisting of a material due to external forces
Examples: bridge twisted in an earthquake, wringing out a towel
What is deflection?
Bending of a material due to external forces
Examples: a fish bending a fishing rod, clothes sagging a clothesline
What is shearing?
Cutting of a material due to external forces
Examples: scissors cutting paper, metal cutters trimming sheet metal
What is a rigid link?
A link where the component or the parts being linked cannot be deformed
What is a flexible link?
A link where the component or the parts being linked can be deformed
What is a direct link?
A link where two parts are held together without a linking component
What is an indirect link?
A link where parts require a separate linking component (like a screw or glue)
What is a removable link?
A link that can be separated without damaging the parts or the linking component
What is a non-removable link?
A link that is damaged or causes damage when separated
What is a complete link?
A link where the parts cannot move independently — movement is shared
What is a partial link?
A link where the parts can move independently of each other
What is elasticity?
The ability of a material to return to its original shape after undergoing a constraint
Example: Rubber band snapping back after being stretched
What is hardness?
A material’s ability to resist deformation, indentation, or scratching
Example: Diamonds are very hard
What is ductility?
The ability of a material to be stretched into a wire without breaking
Example: Copper wire
What is malleability?
The ability of a material to be flattened or bent without breaking
Example: Aluminum foil
What is stiffness?
The ability of a material to absorb energy and resist breaking or shattering
Example: A hockey helmet or bulletproof glass
