Class 4 (CBSE) • Environmental StudiesChapter 7: How Things Work⭐ Topic 1
Simple Machines in Daily Life
Simple machines, like levers, wheels, pulleys, and inclined planes, make our work easier in daily life.
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A lever, like a seesaw or a crowbar, helps us lift heavy objects with less effort by pivoting around a fixed point.
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- A lever helps lift heavy objects with less effort.
- A seesaw and crowbar are examples of levers.
- A wheel and axle helps things move easily.
- A pulley changes the direction of force to help lift objects.
- Wells and cranes use pulleys.
- An inclined plane (ramp) makes moving objects easier.
- Simple machines make daily work easier.
- Simple machines reduce the effort needed for tasks.
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simple machines in daily life