Last Updated on August 7, 2024 by sanjjeett
Hello students, we are providing numericals for ICSE class 9 physics. The resources for practicing numerical problems for ICSE Physics are very less. So, to help icse board students we have created chapterwise numerical problems for class 9 physics. In this article, you will find numerical problems for ICSE Class 9 Physics Chapter 1 Measurements and Experimentation. It is a part of Numerical Problems for ICSE Class 9 Physics series.
| Chapter | Measurements and Experimentation |
| Type of Questions | Numerical Problems |
| Nature of Questions | Numerical |
| Board | ICSE |
| Class | 9 |
| Subject | Physics |
| Unit | Unit 1 Measurements and Experimentation |
| Useful for | Class 9 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | ICSE Class 9 Physics Chapterwise Numerical Problems |
Numerical Problems on Measurements and Experimentation for ICSE Class 9 Physics
Q. 1. Calculate the time period of a pendulum of length 0.84 m, when g = 9.8 ms–2.
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Q. 2. Compare the time periods of a simple pendulum at places where acceleration due to gravity is 2.45 ms–2 and 9.8 ms–2.
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Q. 3. An instrument has 20 divisions on Vernier scale which coincides with 19th division of the main scale. If one cm of the main scale is divided into 20 parts, find its least count.
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Q. 4. A boy measures the length of a piece of pencil by meter rule, Vernier calipers and screw gauge to be 1.2 cm, 1.24 cm and 1.243 cm respectively. State (i) the least count of each measuring instrument (ii) the accuracy in each measurement.
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Q. 5. Figure below shows a screw gauge in which the thimble has 100 divisions. The spindle moves 1 mm ahead in one complete rotation. Calculate the (i) Least count (ii) Diameter of wire.
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Frequently Asked Questions (FAQs) on Measurements and Experimentation Numerical Problems
Q1: Why is practicing numerical problems important in Physics?
A1: Practicing numerical problems is crucial in Physics because it helps students understand and apply theoretical concepts to real-world situations. It enhances problem-solving skills, improves critical thinking, and prepares students for exams by familiarizing them with the types of questions they may encounter. Numerical problems also help in reinforcing learning by providing a practical application of concepts.
Q2: How should students approach numerical problems in Physics?
A2: Students should approach numerical problems methodically. Here are some steps to follow:
Read the Problem Carefully: Understand what is being asked and identify the known and unknown variables.
List the Given Data: Write down all the given information and identify the relevant formulas.
Choose the Right Formula: Select the appropriate formula that relates the known variables to the unknown variables.
Solve Algebraically First: Manipulate the formula to solve for the unknown variable before plugging in the numbers.
Substitute and Calculate: Substitute the given values into the formula and perform the calculations carefully.
Check Units: Ensure that all the units are consistent and convert them if necessary.
Verify Your Answer: Check if the answer makes sense logically and within the context of the problem.
Q3: What are some common mistakes to avoid when solving numerical problems in Physics?
A3: Common mistakes include:
Misreading the problem or missing out on key details.
Using incorrect formulas or not rearranging the formula correctly.
Neglecting units or failing to convert units appropriately.
Making arithmetic errors during calculations.
Forgetting to check if the final answer is reasonable and correctly rounded.
Q4: How can practicing numerical problems help in exams?
A4: Practicing numerical problems helps in exams by:
Increasing familiarity with the format and types of numerical questions that may appear in the exam.
Building speed and accuracy in solving problems.
Reducing exam anxiety by boosting confidence through repeated practice.
Helping in time management by practicing how to allocate time to different types of problems effectively.
Q5: What resources can students use to improve their skills in solving numerical problems in Physics?
A5: Students can use various resources, such as:
Textbooks and reference books that provide solved examples and practice problems.
Online tutorials and videos that explain concepts and problem-solving techniques.
Practice worksheets and past exam papers to gain hands-on experience.
Educational websites and apps that offer interactive problem-solving exercises and quizzes.
