What is Pressure in Physics with Examples & Formula Physics Terminology Explained Usman Information
What is Pressure in Physics with Examples & Formula Physics Terminology Explained | Usman Information
What is Pressure in Physics with Examples & Pressure Formula Physics Terminology Explained very clearly useful for class 6, class 7, class 8, class 9 and class 10 students. Relation between Force, Pressure and Area are explained with examples.
Pressure – Definition & Formula
Force acting on a unit area of a surface is called pressure. The force applied on the surface is perpendicular to the surface is known as thrust.
Pressure (P) = (Force (F) / (Area(A)
S.I Unit : Pascal, denoted by: Pa
1 Pa = N/m2
Force: More force applied more
Area: greater the surface area on which the pressure is applied, lesser the pressure. Lesser the surface area more pressure.
Pressure examples in daily life: High Pressure
A sharp knife has a very small surface area on its cutting edge so that high pressure can be exerted to cut the meat.
Nails, needles and pins have very sharp ends with very small surface areas . When a force is applied to the head of a nail, the pressure will drive its sharp end into a piece of wood easily.
The studs on a football boot have only a small area of contact with the ground . The pressure under the studs is high enough for them to sink into the ground , which gives extra grip.
Pressure examples in daily life: Low Pressure
Skis have a large area to reduce the pressure on the snow so that they do not sink in too far.
A tractor moving on soft ground has wide tires to reduce the pressure on the ground so that they will not sink into the ground.
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