Just then, Aryan’s eyes lit up. “What if we use something round,
like a wheel? When I roll my toy cart, it feels easy to move.”
Aditi nodded, and said, “Let’s ask Swati didi! She is always fixing
the bucket from the well, and she was finding it hard to do it.”
force is simply a push or pull. When I pull the bucket up, gravity
“Something pulls it down? What’s that?” Aryan asked.
“We can use a pulley,” said Swati.
“A pulley? What’s that?” Aryan asked.
a wheel with a groove around it. When you pass a rope through
Swati continued. “When you use a
First, they mounted the wheel on a metal rod and fixed it to the
“That’s the power of the pulley,” Swati explained. “You don't need
to use as much force to lift the bucket, as you are also applying
force in the direction of gravity and not against it.”
The next morning, they set up the pulley above the well.
Grandmother tried it and was amazed. “Wah! This is wonderful!
It’s so easy now!”
The neighbors came to see the pulley in action. One of them
joked, “Now I can use this to lift my heavy bags of rice!” Everyone
laughed and clapped for Aditi, Aryan, and Swati.
Later, as the siblings sat by the well, Aryan said, “We learned so
“Exactly!” Swati said. “With creativity and teamwork, you can
Who knows what you’ll create next?”
With that, the two siblings ran off, dreaming of their next big