Three classes of leversउत्तोलक के तीन वर्ग
NCERT Table 7.2 · interactive diagram
📖 Read Ch 7 with this diagramइस डायग्राम के साथ अध्याय 7 पढ़ेंIs diagram ke saath Ch 7 padhiyeAll diagramsसभी डायग्रामSaare diagrams
Parts and their functions
- Class I — fulcrum in between (वर्ग I — आलंब बीच में) — Seesaw, scissors, crowbar. MA can be more or less than 1.
- Class II — load in between (वर्ग II — भार बीच में) — Nutcracker, lemon squeezer, wheelbarrow, bottle opener. Effort arm is longer, so MA > 1.
- Class III — effort in between (वर्ग III — प्रयास बीच में) — Tongs, tweezers, broom. MA < 1, but gives speed and fine control.
Original diagram drawn by Simple Learning Hub, based on NCERT Table 7.2. Report a mistake