Pressure on surface
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Pressure is defined as the force applied per unit area. It is a scalar quantity measured in Pascals (Pa). Pressure increases as the area decreases or the force increases over an area. Some examples of how pressure is applied in daily life include broad snow shoes and elephant legs which help distribute weight over a large area to reduce pressure and prevent sinking. In contrast, sharp objects like knives and nails concentrate force over a small area to increase pressure and pierce surfaces.
Pressure on surface
- 1. Pressure on a surfacePressure on a surface ? P = Normal force / areaP = Normal force / area ? Unit: NmUnit: Nm-2-2 ? S.I. unit: Pascal (Pa)S.I. unit: Pascal (Pa) ? Scalar quantityScalar quantity Normal force
- 2. ? P = force / surface area in contactP = force / surface area in contact ? P = weight / base areaP = weight / base area
- 3. ? Area Increase, Pressure decreaseArea Increase, Pressure decrease ? Area decrease, Pressure increaseArea decrease, Pressure increase
- 4. Ȧ F FcosȦ P = FcosȦ / Area/ Area
- 5. Application ofApplication of Pressure in our dailyPressure in our daily lifelife
- 6. Area Increase, Pressure decreaseArea Increase, Pressure decrease ? Snow shoes C broad base to reduce pressure CSnow shoes C broad base to reduce pressure C prevent sinking into the snow.prevent sinking into the snow.
- 7. ? Large elephant leg C able to walk on muddyLarge elephant leg C able to walk on muddy ground without sinkingground without sinking
- 8. ? Tractors tyreTractors tyre
- 9. ? Broad based foundation of buildingBroad based foundation of building
- 10. Area decrease, Pressure increaseArea decrease, Pressure increase ? Knife, scissors, nail, thumbtacksKnife, scissors, nail, thumbtacks ? Ice skating bootIce skating boot
- 11. ? Foot ball boots with studsFoot ball boots with studs
- 13. ? Woodpecker C sharp beak enable it to pierce andWoodpecker C sharp beak enable it to pierce and chip tree barkchip tree bark