What is pressure in terms of force and area?
Pressure is force acting per unit area perpendicular to the surface.
Pressure formula
P = F / A. Force per unit area.
What formula expresses pressure using force and area?
Pressure is given by where F is force and A is area.
Unit of pressure
Newton per square metre (Pa).
Why do a pointed nail and knife edge exert greater pressure?
Their smaller contact areas concentrate the applied force.
Liquid pressure increases with
Height of liquid column.
What causes liquid pressure to increase in a liquid column?
Increasing the height of the liquid column increases the pressure.
Atmospheric pressure effects
Keeps objects like rubber suckers attached.
High-speed wind impact
Can cause roof damage.
Lightning hazard
Electrical discharge during storms.
Cyclone structure
Centered around low-pressure zones.
Test your knowledge with 11 questions on Pressure Winds Storms and Cyclones.
1. Which expression defines pressure when a force acts perpendicular to a surface?
2. What is the correct definition of pressure in physics?
Review the complete course in the study sheet for Pressure Winds Storms and Cyclones.
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