FCTC Written Study Guide Exam Questions & Answers 100% Accurate

Classes of Levers - ANSWER-Class 1, Class 2, Class 3 Class 1 Levers - ANSWER-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 - ANSWER-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 - ANSWER-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