Question

Question 26:
Fill in the following blanks with suitable words :
(a) Force acting on a unit area is called…………………..
(b) It is the……………. force which makes objects appear lighter in water.
(c) A heavy ship floats in water because its……………………. density is less than that of water.
(d) In fluids (liquids and gases), pressure acts in……………………….. directions, and pressure………………… as the depth increases.
(e) In order to sink in a fluid, the density of an object must be……………………… than the………………… of the fluid.
(f) Snow shoes work by spreading out a person’s……………………… over a much bigger………………………..
(g) If the area of a snow shoe is five times……………………. than the area of an ordinary shoe, then the pressure of a snow shoe on the snow is five times……………………

Lakhmir Singh Physics Class 9

Answer 1

pressure
buoyant force

average
all, increase

more, density
weight , area

bigger, smaller
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Answer 2

Answer:

a) Pressure

Explanation:

b) Buoyant force

c) average

d) all , increases

e) Greater, density

f) Weight, area

g) Bigger, smaller