Pascal's principle states that pressure applied to an enclosed fluid is transmitted uniformly throughout the fluid and to the container walls. The document uses the example of a hydraulic car lift to demonstrate Pascal's principle, where equal pressure is exerted on both sides of the hydraulic system when a force is applied to one side. The document also lists applications of Pascal's principle like car brakes, cranes, dental chairs, hydraulic jacks, and pumps.

1. (3.4) Pascal’s
PrinciPle
Activity 1
Activity 2

2. SPURT

3. Pascal’s Principle
Stated that ;
• Pressure applied to an enclosed fluid
is transmitted uniformly to every part
of the liquid and to the wall of the
container.
TOOTHPASTE
HYDRAULIC SYSTEM

5. Example ;

8. Exercise ;
1.
Figure shows a hydraulic pump which is used to lift a car where piston
A is connected to a hand lever and piston B is attached to platform
which lift a car.
a) If the pressure applied at point C is P, what can you say the pressure
at D?
b) Name and elaborate on the principle that be used as the basis on
your answer at (a).
c) If an external force of 10N is applied on piston A with diameter 2 cm,
i) calculate the transmitted pressure P ?
ii) determine the maximum weight that can be lifted if the
diameter of the piston B is 12 cm.

9. Answer;

10. APPLICATIONS
• Car brakes
• Crane
• Dental chair
• Hydraulic jacks
• Hydraulic pump

11. Explain the necessary modifications so that the chair is safe and
suitable the use of adults