https://www.lexico.com/en/definition/light What I Know I Read the following sentences and encircle the letter of the best answer. 1. It is a device consisting of few parts used to work easier and faster by reducing the effort or force used in doing the work. A. Simple machine B. Household machine C. Construction machine D. Safety machine 2. It is a simple machine that is straight or curved rigid bar that is free to turn about a fixed point A. lever B. inclined plane C. screw D wheel and axle. 3. The distance from fulcrum to the load is called A. effort B. input force C. output force D. resistance force 4. Which of the following picture of simple machine has its fulcrum between the effort and the load A. B. С D. Soubory D. load 5. It is the force that is applied to one part of the bar A. bar B. effort C. fulcrum 5 | Page
