🥵 Atmospheric Pressure – A Tiffin Tale!
Riya packed hot curry in her steel tiffin box early in the morning. She closed the lid tightly and rushed to school.
At lunchtime, she struggled to open the lid — it felt stuck! Her friend joked, “Did your tiffin vacuum-seal itself?” 😄
That’s exactly what happened. The hot steam inside cooled down, creating low pressure. The air outside pushed harder, making the lid tough to open. That's the magic of **atmospheric pressure** — always around us, always at work!
At lunchtime, she struggled to open the lid — it felt stuck! Her friend joked, “Did your tiffin vacuum-seal itself?” 😄
That’s exactly what happened. The hot steam inside cooled down, creating low pressure. The air outside pushed harder, making the lid tough to open. That's the magic of **atmospheric pressure** — always around us, always at work!
🔍 Puzzle 1:
What is atmospheric pressure?
It is the pressure exerted by the weight of air on everything around us.
🔍 Puzzle 2:
What causes a tin can to collapse after being sealed with steam inside and then cooled?
Steam condenses and creates low pressure inside; higher atmospheric pressure outside crushes the can.
🔍 Puzzle 3:
Why is it harder to drink with a straw if there’s a hole in it?
Air leaks in, so pressure doesn't drop inside the straw, and the drink doesn't rise.
🔍 Puzzle 4:
Which physical law explains the working of rubber suckers and syringes?
Atmospheric pressure – it acts on the outside when pressure is reduced inside.
🔍 Puzzle 5:
What is the SI unit of force, and how is its symbol written correctly?
newton (N) – lowercase name, uppercase symbol
🔍 Puzzle 6:
How does a syringe draw in liquid?
Pulling the plunger reduces pressure inside, and atmospheric pressure pushes liquid in.
🔍 Puzzle 7:
Why do we not feel crushed under atmospheric pressure?
Because pressure inside our body balances the external pressure.
🔍 Puzzle 8:
How does atmospheric pressure help in siphon action?
It helps push liquid up from the source into the siphon tube.
🔍 Puzzle 9:
Which direction does atmospheric pressure act?
It acts in all directions – downwards, upwards, and sideways.
🔍 Puzzle 10:
Give one daily life use of atmospheric pressure.
Drinking with a straw, using a syringe, or rubber suction hooks.
💬 Did your tiffin ever get stuck like Riya’s? Share your story or answer below! 👇
