Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
Pascal is the SI unit of _________, which is defined as a force of 1 N applied uniformly over an area of тАЛ1 m┬▓.
mass density
energy
power
pressure
pressure
Pascal is the standard SI unit used to quantify pressure. It is specifically defined as the pressure exerted by a force of 1 Newton acting perpendicularly on a surface area of 1 square meter.
Pascal is the standard SI unit used to quantify pressure. It is specifically defined as the pressure exerted by a force of 1 Newton acting perpendicularly on a surface area of 1 square meter.
Think of a sharp needle vs. a flat thumb. Pushing a needle against your skin with a small force creates high pressure (enough to pierce), whereas pushing with your thumb with the same force spreads the pressure out over a larger area, causing no damage.
P = F/A: 'Pressure Feeds Area' (as force spreads out over area).
P=AFтАЛ тАФ Where P is pressure in Pa, F is force in N, and A is area in m2
1┬аPa=1┬аN/m2 тАФ The definition of Pascal in base units
Pressure is defined as the physical quantity measuring the distribution of force over a specific surface area. According to the formula P=AFтАЛ, if the magnitude of the force (F) increases, the pressure increases, whereas if the surface area (A) increases, the pressure decreases for a constant force. This principle explains why sharp objects (small area) penetrate surfaces more easily than blunt objects (large area) under the same force.
Pascal is a derived SI unit named after the French mathematician Blaise Pascal.
Pressure is a scalar quantity.
1 atmospheric pressure is approximately equal to 1.013├Ч105┬аPa.
Provides a standardized universal way to measure stress and pressure in materials science and fluid mechanics.
The Pascal unit is often too small for practical daily applications, so kilopascals (kPa) or megapascals (MPa) are frequently used in engineering.
Measuring the blood pressure in the human circulatory system.
Monitoring air pressure in pneumatic tires and industrial hydraulic systems.
Mass density is measured in kg/m3.
Energy is measured in Joules (J).
Power is measured in Watts (W).
Option D is the only unit derived from force and area.
D is correct тАФ Pascal is the defined SI unit for pressure, representing the distribution of force over a specific area.
Always remember that pressure is inversely proportional to area (PтИЭA1тАЛ); this is why heavy vehicles like tanks use wide tracks to reduce pressure on the ground to prevent sinking.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download тАв 100K+ Aspirants