PLTW Principles of Engineering Latest Updated Graded A+

PLTW Principles of Engineering Latest Updated Graded A+ 1st class lever fulcrum in the middle; see-saw, hammer, scissors 2nd class lever fulcrum at the end, load in the middle; wheel barrow, car-jack 3rd class lever fulcrum at the end, effort in the middle; tweezers, baseball bat 5 Recycling & Material categories -Organics -Metals -Polymers -Ceramics -Composites 6 Types of Simple Machines -Inclined plane -Lever -Pulley -Screw -Wedge -Wheel and Axle Absolute pressure gauge pressure + atmospheric pressure Absolute temperature Temperature in F* + 460 degrees Actual Mechanical Advantage (AMA) ratio of the magnitude of the resistance and effort forces applied to a system Axial stress A force with its resultant passing through the centroid of a particular section and being perpendicular to the plane of the section. A force in a direction parallel to the long axis of the structure. Bayes' Theorem Calculates a conditional probability, based on all ways the condition might have occurred. Bayes' Theorem Equation P (A/E) = P(E/A) x P(A) / [P(E/A) x P(A) + P(E/B) x P(B) + P(E/C) x P(C)] P (A/E) = probability of A, given we already know the condition E Beam deflection movement of a beam or node from its