Simple machines · सरल मशीनें
See-saw, nutcracker or tweezers — which class of lever?
Simple machines games
Simple machines · सरल मशीनें
Lever, pulley, wheel and axle, inclined plane, wedge, screw.
| Lever class | What is in the middle | Examples |
|---|---|---|
| First | Fulcrum | See-saw, scissors, crowbar |
| Second | Load | Nutcracker, wheelbarrow, bottle opener |
| Third | Effort | Tweezers, fishing rod, human forearm |
For Class 6 to 9 (NCERT Exploration 9, “Work, Energy, and Simple Machines”).
A one-page chart to stick on the wall, and a worksheet to practise.
Simple machines
Lever classes: 1st fulcrum in middle, 2nd load in middle, 3rd effort in middle.
kheloaurseekho.in — free charts, games and worksheets
Simple machines — worksheet
Name: ____________________ Class: ______ Date: __________
1. Draw a first-class lever and label fulcrum, load and effort.
2. Give two examples of each class of lever.
kheloaurseekho.in — free charts, games and worksheets
