The document defines thrust as a force applied perpendicularly to a surface, while pressure is the effect of thrust per unit area. Pressure depends on both the applied force and the contact area - the same force will produce less pressure over a larger area but more pressure over a smaller area. Everyday examples are provided like school bags distributing weight over shoulders, knives cutting with focused force, and vehicle tires spreading weight to reduce sinking.

1. THRUST AND
PRESSURE
By – M.K.Kruthi

2. THRUST
The force applied on a surface in a direction
perpendicular to the surface
Unit = Newton (N)

4. PRESSURE
The effect of thrust per unit area is
called pressure.
 Pressure =thrust/area
Unit – Pascal (Pa)
 1 Pa = 1 N / 1m2

6. PRESSURE DEPENDS
ON TWO FACTORS
 1.force(thrust)-more force more pressure
 2.area -more area less pressure

7. “THE SAME FORCE
PRODUCES LESS PRESSURE
IF IT ACTS ON A LARGE
AREA BUT CAN PRODUCE
LESS PRESSURE IF ACTS
ON A SMALL AREA.”

8. EVERY DAY OBSERVATION
1.School bags have wide straps so the
weight of bag may fall over a large area of the
shoulder of the student producing less pressure on
shoulder.

10. 2.S HARP KNIFE CUTS BET TER THAN A
BLUNT KNIFE SO THE FORCE OF OUR HAND
FALLS OVER A VERY SMALL AREA OF
OBJECT PRODUCES LARGE PRESSURE .

12. 3.THE TRACTOR HAVE BROAD
TYRES SO THERE IS LESS PRESSURE
ON GROUND AND DO NOT SINKING
TO COMPARATIVELY SOFT FIELD.

14. 4.IT IS EASIER TO WALK ON
SOFT SAND IF WE HAVE FLAT
SHOES RATHER THAN SHOES
WITH SHARP HEELS.

16. 5.THE FOUNDATIONS OF
BUILDINGS AND DAMS ARE
LAID ON A LARGER AREA TO
PRODUCE LESS PRESSURE

17. THANK YOU