FCTC Written Study Guide Latest Update Graded A+

FCTC Written Study Guide Latest Update Graded A+ Classes of Levers Class 1, Class 2, Class 3 Class 1 Levers Fulcrum is in the middle, with the effort (input) force on one side of the fulcrum and resistance (output) on the other side. Mechanical Advantage greater or less than 1 Ex: Seesaw, Crowbar, Pair of Scissors. Class 2 Levers Resistance is in the middle, the effort is applied on one side of the resistance and the fulcrum on the other side. Mechanical Advantage always greater than 1 Ex: Wheelbarrow, nutcracker, bottle opener, or the brake pedal of a car. Class 3 Levers Effort in the middle, the resistance is on one side of the effort and the fulcrum is located on the other side. Mechanical Advantage always less than 1 Ex: Pair of tweezers, human mandible Lever Definitions Lever machine consisting of a beam or rigid rod pivoted at a fixed hinged, or fulcrum. Input Force = Effort Output Force = Load or Resistance What does "fre, 123" mean? Fulcrum is in the middle for Class 1 Levers Resistance (output) in middle for Class 2 Effort (input) in the middle for Class 3 Formula for Determining the head pressure difference between an intake and output 1 vertical foot = 0.433 psi 1 psi = 2.31 vertical feet Overall Test Overview: 1) 30 minute period to read 2 essays - 2 hour time limit begins to answer (100 questions). 2) Watch 2 short videos and answer (20 questions) based on the scenarios. 3) Apply mechanical reasoning (25 questions, i.e. Fluid Dynamics, levers, belt and pulleys, gears)