ICSE – Grade 9 – Physics – Ch 04 – QA

Set 1

Column A

1. Thrust
2. Pressure
3. Pascal’s Law
4. Hydraulic Jack
5. Barometer

Column B (Shuffled)
 a. Measures atmospheric pressure
 b. Force per unit area
 c. Force perpendicular to a surface
 d. Principle of transmission of pressure in liquids
 e. Lifts heavy vehicles

Answers:
 1 → c
 2 → b
 3 → d
 4 → e
 5 → a

Set 2

Column A

1. Fortin Barometer
2. Aneroid Barometer
3. Hydraulic Press
4. Depth in liquid
5. Density of liquid

Column B (Shuffled)
 a. Portable and liquid-free pressure measurement
 b. Standard atmospheric pressure ~76 cm Hg
 c. More depth increases pressure
 d. Small piston applies force to large piston
 e. Higher density increases pressure

Answers:
 1 → b
 2 → a
 3 → d
 4 → c
 5 → e

Set 3

Column A

1. Knife Edge
2. Camels’ Feet
3. Syringe
4. Atmospheric Pressure
5. Hydraulic Brakes

Column B (Shuffled)
 a. Reduces pressure on sand
 b. Equal braking force on all wheels
 c. Sucks liquid due to pressure difference
 d. Sharp edge increases pressure
 e. Pressure of air column above earth

Answers:
 1 → d
 2 → a
 3 → c
 4 → e
 5 → b

Set 4

Column A

1. Pressure Formula
2. Standard Atmospheric Pressure
3. Pressure in Fluids
4. Submarine Hull
5. Pascal

Column B (Shuffled)
 a. P = F ÷ A
 b. 1.013 × 10⁵ Pa at sea level
 c. Acts equally in all directions
 d. Withstands high liquid pressure
 e. SI unit of thrust

Answers:
 1 → a
 2 → b
 3 → c
 4 → d
 5 → e

Set 5

Column A

1. Hydraulic Lift
2. Sharp Knife
3. Blunt Knife
4. Fountain Pen
5. Altimeter

Column B (Shuffled)
 a. Measures height above sea level
 b. Cuts easily due to smaller area
 c. Uses atmospheric pressure to draw ink
 d. Produces less pressure
 e. Lifts heavy vehicles using small piston

Answers:
 1 → e
 2 → b
 3 → d
 4 → c
 5 → a

Set 6

Column A

1. Ways to Increase Pressure
2. Ways to Decrease Pressure
3. Hydrostatic Pressure
4. Volume of Liquid
5. Gravity

Column B (Shuffled)
 a. Reducing area for same thrust
 b. Increasing area for same thrust
 c. P = h × ρ × g
 d. Does not affect pressure at a point
 e. Higher g increases pressure

Answers:
 1 → a
 2 → b
 3 → c
 4 → d
 5 → e

Set 7

Column A

1. Consequences of Liquid Pressure
2. Hydraulic Machines
3. Pressure Depends On
4. Random Motion
5. Standard Barometric Height

Column B (Shuffled)
 a. Helps lift vehicles and apply brakes
 b. Dams thicker at bottom
 c. Depth, density, gravity
 d. Causes pressure in liquids and gases
 e. 76 cm Hg

Answers:
 1 → b
 2 → a
 3 → c
 4 → d
 5 → e

Set 8

Column A

1. Air Column
2. Siphon
3. Rubber Sucker
4. Submarines
5. Hydraulic Principle

Column B (Shuffled)
 a. Pressure transmitted equally in all directions
 b. Atmospheric pressure removes liquid from one place to another
 c. Atmospheric pressure allows sticking to surfaces
 d. Built to withstand high pressure
 e. Causes atmospheric pressure

Answers:
 1 → e
 2 → b
 3 → c
 4 → d
 5 → a

Set 9

Column A

1. Pressure at Same Depth
2. Knife, Pin, Needle
3. Straws
4. Broad Tyres
5. Camels

Column B (Shuffled)
 a. Reduce pressure
 b. Produce high pressure due to small area
 c. Atmospheric pressure enables sucking liquid
 d. Equal pressure at same depth in liquid
 e. Broad feet reduce pressure on sand

Answers:
 1 → d
 2 → b
 3 → c
 4 → a
 5 → e

Set 10

Column A

1. Factors Affecting Pressure at a Point
2. Advantages of Mercury
3. Disadvantages of Water in Barometer
4. Falling Barometer
5. Rising Barometer

Column B (Shuffled)
 a. Short column needed, low vapor pressure, does not stick to glass
 b. Storm or rain
 c. Depth, density, gravity
 d. Evaporates easily, requires tall column, wets glass
 e. Clear weather

Answers:
 1 → c
 2 → a
 3 → d
 4 → b
 5 → e