Three classes of leversउत्तोलक के तीन वर्ग

NCERT Table 7.2 · interactive diagram

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