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Chapter 4 of 10
Important Questions

Pressure in Fluids and Atmospheric Pressure

ICSE · Class 9 · Physics

Most important questions from Pressure in Fluids and Atmospheric Pressure for ICSE Class 9 Physics board exam 2026. MCQs, short answer, and long answer questions with marks.

42 questions35 flashcards5 concepts

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A diagram illustrating the difference between thrust and pressure using a block placed on a surface. Show the same block exerting the same thrust (its weight) but different pressures depending on the
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42 Questions·
multiple choicemultiple correcttrue false

Sample Questions

1multiple correct

Which of the following factors affect the pressure at a point in a liquid? (Select all correct answers)

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Depth of the point below free surface, Density of the liquid, Acceleration due to gravity

Pressure in a liquid depends on depth (h), density (ρ), and acceleration due to gravity (g) as shown in P = hρg. The shape and area of container do not affect pressure at a point.

2true false

Pascal's law states that pressure applied to a confined liquid is transmitted equally in all directions.

Show answer

True

Pascal's law correctly states that pressure exerted anywhere in a confined liquid is transmitted equally and undiminished in all directions throughout the liquid. This principle is used in hydraulic machines.

3multiple correct

Which of the following are applications of Pascal's law? (Select all correct answers)

Show answer

Hydraulic press, Hydraulic jack, Hydraulic brakes

Hydraulic press, hydraulic jack, and hydraulic brakes all work on Pascal's law principle of pressure transmission. A simple barometer works on atmospheric pressure, not Pascal's law.

4multiple choice

Why is the wall of a dam made thicker at the bottom?

Show answer

Because water pressure increases with depth

According to P = hρg, water pressure increases with depth. Therefore, the dam wall experiences maximum pressure at the bottom and needs to be thicker to withstand this greater pressure.

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Frequently Asked Questions

What are the important topics in Pressure in Fluids and Atmospheric Pressure for ICSE Class 9 Physics?
Pressure in Fluids and Atmospheric Pressure covers several key topics that are frequently asked in ICSE Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Pressure in Fluids and Atmospheric Pressure — ICSE Class 9 Physics?
Understand the core concepts first, then work through the 42 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Pressure in Fluids and Atmospheric Pressure?
There are 42 practice questions available for Pressure in Fluids and Atmospheric Pressure. These cover multiple question types including MCQs, short answer, and long answer questions.

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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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