1. FORM 4 SYALLBUS
MINISTRY OF EDUCATION MALAYSIA
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2. Characteristic of pressure in liquid
Increases with depth
Acts in all direction
Does not depends on the
area of its surface
Does not depends on the
shape or size of the
container
The pressure at two point at
the same level in the same
liquid are equal

3. Application of Pressure In
Liquids
Submarine is built
with thick wall so as to
withstand enormous
pressure at greater
depth.

4. Do i know ?
Application of Pressure In
Liquids
Normally a water tank is
places at higher level so
as to supply water at
greater pressure.

5. Pressure In Liquid
Let’s learn!
What Is Pressure In Liquid ??
A liquid in a container exerts pressure
because of its weight..
The pressure at any point in a liquid
acts in all directions.

6. Pressure In Liquid
I want to learn
more!
Pressure acts equally in all directions at
any points in a liquid at a particular
depth.
Does not depend
on the area of its
surface
Does not depend
on the shape or
size of the
container.
CHARACTERISTICS

7. • A diver
experiences
discomfort in his
body and ears
when he dives
deep underwater.
• Why does this
happen?
Pressure In Liquids

8. The pressure at two points at
the same level in the same
liquid are equal
When the container is drilled with several identical holes
at the same height, water will spurt out at equal speeds to
reach equal distances from the circumference of the base.

9. The pressure
in a liquids
acts in all
direction
If the thistle funnel, bent at
different angles is placed at the
same depth y, the manometer
will indicate the same reading
h. A liquid exerts a pressure on
every surface in contact with it
regardless which way the
surface is facing.

10. Let’s learn!
Relate depth to pressure
in a liquid
• Pressure in liquid
increase with
depth
• pressure α depth.

11. I want to
learn!
Relate density to pressure
in a liquid
• Pressure α
liquid density
• Eg : density of
oil is less than
water. Hence,
pressure of oil is
also less

12. The pressure in a liquid does not
depend on the shape or
size of the
container
The diameters and shapes of
the tubes are different. The
pressure at the same depth is
the same since the water levels
in each tube is the same.

13. Formula For The Pressure
In A Liquid

14. Liquid Pressure Formula

15. Size, shape of container does not affect
the pressure acting on the liqud

16. • Pressure in
liquid
increase with
depth
• pressure α
depth.
Depth