Pressure

Question 1

Define Pressure

Answer 1

it is defined as the force exerted per unit area

Question 2

Pressure Formula

Answer 2

Force (N)/ Area (m square)

Question 3

look at example question and diagram

Answer 3

Area of A= 0.2cm x 0.3cm
                = 0.06cm squared
therefore, pressure exerted by A= 120/0.06
=2000Pa
... look at the other ones

Question 4

THE FOLLOWING WILL BE

Answer 4

PRESSURE DUE TO LIQUIDS (start to read example)

Question 5

the water falling out of the upper hole falls…

Answer 5

closest to the can

Question 6

the water falling out the lowest hole falls…

Answer 6

furthest away

Question 7

what does this can exercise demonstrate

Answer 7

(that cans can get buff) PRESSURE INCREASES WITH DEPTH

Question 8

unlike the vertical hole arrangement, in a can with holes drilled horizontally into it, the water falling out is observed to be falling…

Answer 8

all at the same distance away from the can

Question 9

this one demonstrates that the

Answer 9

PRESSURE AT ONE HORIZONTAL LEVEL IS THE SAME

Question 10

in a liquid: Pressure=

Answer 10

height of liquid column x density of liquid x acceleration due to gravity
(P= hρg)