Chapter 2: Pressure

Question 1

Bernoulli’s principle

Answer 1

When the velocity of a fluid increases, the pressure in the fluid decreases
and vice versa

Question 2

Pressure

Answer 2

Force per unit area

Question 3

Atmospheric pressure

Answer 3

Pressure due to the weight of the layer of air acting on the surface of the
earth

Question 4

Gas pressure

Answer 4

The force per unit area exerted by the gas molecules as they collide with
the wall of the container

Question 5

Pascal’s Principle

Answer 5

Pressure applied on an enclosed fluid is transmitted uniformly in all
direction in the fluid

Question 6

Hydraulic system

Answer 6

A system that uses a liquid to transmit pressure

Question 7

Buoyant force

Answer 7

Force acting upwards on an object immersed in a liquid when there is
pressure difference between the lower surface and upper surface of the
object

Question 8

Archimedes’ principle

Answer 8

An object which partially or fully immersed in a fluid will experience a
buoyant force equal to the weight of fluid displace