🌍 Real-Life Applications: How Pressure Works in Nature and Machines
🌬️ Atmospheric Pressure: Breathing Made Possible
Our lungs expand, reducing internal pressure. This causes air to flow in from higher atmospheric pressure outside — helping us breathe!
🦶 Sharp Heels vs. Flat Shoes
High heels exert greater pressure due to smaller contact area, which can damage soft flooring — demonstrating pressure = force ÷ area.
🛞 Hydraulic Brakes in Vehicles
Car brakes use hydraulic fluid to transmit pressure uniformly, multiplying force to stop the vehicle effectively using Pascal’s Principle.
🌱 Roots Absorbing Water (Osmotic Pressure)
Plant roots absorb water from the soil due to a pressure difference, showing how nature balances fluid movement with pressure.
🔩 Nails and Pins: Concentrated Force
A sharp nail enters wood easily because all the force is concentrated at a small area, increasing pressure.
🚰 Water Supply in Buildings
Water tanks are placed at a height so pressure increases with depth, ensuring strong water flow through taps at lower levels.
