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Principles of Engineering key terms 1
Terms in this set (27)
encourage or assist someone
Actual Mechanical Advantage
takes into account energy loss due to deflection, friction, and wear.
A continuous band or chain for transferring motion or power or conveying materials from one wheel or shaft to another.
move swiftly and in an uncontrolled way in a specified direction.
a connected flexible series of metal links used for fastening or securing objects and pulling or supporting loads.
"the drug dealer is being kept in chains"
synonyms: fetters, shackles, irons, leg irons, manacles, handcuffs; More
a series of decorative metal links worn as a decoration; a necklace.
short for snow chains.
a force or factor that binds or restricts someone.
must overcome in order to do work on an object via a simple machine.
How well you get something done
the resistance that one surface or object encounters when moving over another.
the point on which a lever rests or is supported and on which it pivots.
one of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism (such as the engine of a vehicle or the crank of a bicycle) and the speed of the driven parts (the wheels).
"he was tooling along in fifth gear"
used in reference to the level of effort or intensity expended in an activity or undertaking.
"from this weekend, the campaign is expected to step up a gear"
Ideal Mechanical Advantage
(MA) is the factor by which a mechanism multiplies the force or torque applied to it.
wheel that is inserted between two or more other gear wheels.
a plane inclined at an angle to the horizontal.
a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.
a system of parts working together in a machine; a piece of machinery.
Moment (as related to mechanisms)
a turning effect produced by a force acting at a distance on an object.
the steepness of a slope, especially of a roof.
a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.
a wheel or drum fixed on a shaft and turned by a belt, used especially to increase speed or power.
which an effort force must overcome in order to do work on an object via a simple machine.
a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated so that it pierces wood or other material and is held tightly in place.
any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
each of several projections on the rim of a wheel that engage with the links of a chain or with holes in film, tape, or paper.
Any system in which the sum of the forces, and torque, on each particle of the system is zero; mechanical equilibrium.
the use of semiotic  means to document or convey information.
a twisting force that tends to cause rotation.
a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.
Wheel & Axle
fastened so that torque applied to the wheel winds a rope or chain onto the axle, yielding a mechanical advantage equal to the ratio of the diameter of the wheel to that of the axle.
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