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.
“How?” Aryan asked in excitement!
“We can use a pulley,” said Swati.
“A pulley? What’s that?” Aryan asked.
Swati explained, “A pulley makes lifting heavy things easier. It is
a wheel with a groove around it. When you pass a rope through
the groove, instead of pulling straight up, you pull down, and it
feels lighter!”
“But, why does it feel lighter?” Aditi asked in a confused tone.
Swati smiled and said, “That’s a
nice question! Let’s imagine you
are pulling a heavy bucket straight
up. It’s hard, right?”
Aditi and Aryan nodded.
Swati continued, “That’s because
gravity is pulling the bucket down,
so you need to apply an upward
force that's stronger than gravity's
downward pull.”
“Now, let’s think about the pulley,”
Swati continued. “When you use a
First, they mounted the wheel on a metal rod and fixed it to the
Grandmother tried it and was amazed. “Wah! This is wonderful!
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