Principles of Engineering Semester
Final Study Guide
Effort Force - ANSWERSAn external force applied to an object
Efficiency - ANSWERSThe ratio of useful energy output to the total energy input, or the
percentage of the work input that is converted to work output
Friction - ANSWERSThe resistance that one surface or object encounters when moving over
another
Gear - ANSWERSA circular toothed object used to transfer rotary motion and torque through
interlocking tenth
Ideal Mechanical Advantage - ANSWERSRatio of distance traveled by the applied effort and
resistance force within a system
Lever - ANSWERSA rigid bar used to exert a pressure or sustain a weight at one point of its
length by the application of a force at a second and turning at a third on a fulcrum
Mechanism - ANSWERSThe structure of or the relationship of the parts in a machine, or in a
construction or process comparable to a machine
Moment - ANSWERSThe turning effect of a force about a point equal to the magnitude of the
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, force times the perpendicular distance form the point to the line of action from the force
Resistance Force - ANSWERSImpeding effect exerted by one material object on another
Simple Machine - ANSWERSAny various elementary mechanisms including the lever, the wheel
and axle, the pulley, the inclined place, the wedge, and the screw
Static Equilibrium - ANSWERSA condition where there are no net external forces acting upon a
particle or rigid body and the body remains at the rest of continues at a constant velocity
Torque - ANSWERSA force that produces or tends to produce rotation or torsion
Alternative Energy - ANSWERSAny source of energy other than fossil fuels that is used for
constructive purposes
Ampere - ANSWERSThe unit of electrical current in the meter-kilogram-second system of units.
Referred to as amp and symbolized as A
Amps - ANSWERSFlow of electrons
Biomass - ANSWERSPlant materials and animal waste used especially as a source of fuel
Current - ANSWERSThe net transfer of electric charge (electron movement along a path) per
unit of time
Electrical Energy - ANSWERSEnergy causes by the movement of electrons
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Final Study Guide
Effort Force - ANSWERSAn external force applied to an object
Efficiency - ANSWERSThe ratio of useful energy output to the total energy input, or the
percentage of the work input that is converted to work output
Friction - ANSWERSThe resistance that one surface or object encounters when moving over
another
Gear - ANSWERSA circular toothed object used to transfer rotary motion and torque through
interlocking tenth
Ideal Mechanical Advantage - ANSWERSRatio of distance traveled by the applied effort and
resistance force within a system
Lever - ANSWERSA rigid bar used to exert a pressure or sustain a weight at one point of its
length by the application of a force at a second and turning at a third on a fulcrum
Mechanism - ANSWERSThe structure of or the relationship of the parts in a machine, or in a
construction or process comparable to a machine
Moment - ANSWERSThe turning effect of a force about a point equal to the magnitude of the
1
, force times the perpendicular distance form the point to the line of action from the force
Resistance Force - ANSWERSImpeding effect exerted by one material object on another
Simple Machine - ANSWERSAny various elementary mechanisms including the lever, the wheel
and axle, the pulley, the inclined place, the wedge, and the screw
Static Equilibrium - ANSWERSA condition where there are no net external forces acting upon a
particle or rigid body and the body remains at the rest of continues at a constant velocity
Torque - ANSWERSA force that produces or tends to produce rotation or torsion
Alternative Energy - ANSWERSAny source of energy other than fossil fuels that is used for
constructive purposes
Ampere - ANSWERSThe unit of electrical current in the meter-kilogram-second system of units.
Referred to as amp and symbolized as A
Amps - ANSWERSFlow of electrons
Biomass - ANSWERSPlant materials and animal waste used especially as a source of fuel
Current - ANSWERSThe net transfer of electric charge (electron movement along a path) per
unit of time
Electrical Energy - ANSWERSEnergy causes by the movement of electrons
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