pressure

Define and explain pressure. What is the effect of area on pressure acting on a surface?

Pressure is the force applied per unit area on a surface. It quantifies how concentrated a force is on a particular area. The formula for pressure is: Pressure=Force/Area​ Where: Pressure is measured in pascals (Pa), where 1 Pa = 1 N/m². Force is the force applied on the surface (in newtons, N). Area is the … Read more

Q.3 What base quantities are involved in these derived physical quantities; force, pressure, power and charge.

(a) Force: Force F = ma SI Unit of force is Newton (N) = kgms-2 Base quantities involved in force a mass, length, and time. (b) Pressure: Pressure =  force/area Pressure = F/A The SI unit of force (F = ma) is Newton N = kgms and unit of area A is m² = kgm … Read more