Last Updated on August 3, 2024 by XAM CONTENT
Hello students, we are providing assertion reason questions for class 8 science. Assertion reason questions are the new question format that is introduced in CBSE board. The resources for assertion reason questions are very less. So, to help students we have created chapterwise assertion reason questions for class 8 science. In this article, you will find assertion reason questions for cbse class 8 science chapter 9 Friction.
| Chapter | Friction |
| Type of Questions | Assertion Reason Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 8 |
| Subject | Science |
| Useful for | Class 8 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 8 Science Chapterwise Assertion Reason |
Assertion Reason Questions on Friction
Questions:
Q.1. Assertion (A): It is easier to walk on dry marble floor as compared to wet marble floor.
(Easy) Reason (R): Friction helps us to walk.
(a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
(b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A)
(c) Assertion (A) is true but reason (R) is false.
(d) Assertion (A) is false but reason (R) is true.
Difficulty Level: Easy
Ans. Option (b) is correct.
Explanation: It is true that friction helps us to walk but on wet marble floor friction becomes very less as the surface is very smooth, hence there are more chances to slip.
Q.2. Assertion (A): Airplanes have special shape that resembles with birds.
Reason (R): Scientists take inspiration from nature to design airplanes so as to reduce friction experienced by air.
(a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
(b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A)
(c) Assertion (A) is true but reason (R) is false.
(d) Assertion (A) is false but reason (R) is true.
Difficulty Level: Easy
Ans. Option (a) is correct.
Explanation: When objects move through fluids, they have to overcome friction acting on them. In this process they lose energy. Efforts are, therefore, made to minimise friction that is done by shaping them like birds and fishes.
Also check
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Topics from which assertion reason questions may be asked
- Learn the concept of friction.
- Understand the factors that affect frictional force.
- Learn the different types of friction.
- Understand the advantages and disadvantages of friction.
- Learn the methods to increase or decrease friction.
- Understand the concept of fluid friction and methods to reduce it.
Frequently Asked Questions (FAQs) on Friction Class 8 Assertion Reason
Q1: What are Assertion-Reason questions?
A1: Assertion-Reason questions are a type of question format used in CBSE exams where two statements are provided: an Assertion (A) and a Reason (R). Students need to determine whether each statement is true or false and if the Reason correctly explains the Assertion.
Q2: How do Assertion-Reason questions differ from other question types?
A2: Unlike multiple-choice questions, Assertion-Reason questions require students to analyze the relationship between two statements. It’s not just about knowing the facts but understanding how they connect logically.
Q3: What steps should I follow to correctly answer Assertion-Reason questions?
A3: Follow these steps:
Read both statements carefully. Understand what each statement is saying.
Determine the truth value of each statement. Decide if each statement is true or false independently.
Analyze the relationship. If both statements are true, decide whether the Reason (R) correctly explains the Assertion (A).
Choose the correct option. Based on your analysis, select the appropriate answer from the given options.
Q4: What options are typically provided for Assertion-Reason questions?
A4: The typical options are:
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, but R is not the correct explanation of A.
C. A is true, but R is false.
D. A is false, but R is true.
Q5: What should I check to determine if the Reason correctly explains the Assertion?
A5: Ensure that the Reason provides a logical explanation for the Assertion. Check if the Reason directly addresses the cause or basis of the Assertion and if they are contextually linked.
Q6: How can I improve my skills in answering Assertion-Reason questions?
A6: Practice regularly with sample questions and past papers. Focus on understanding the concepts thoroughly rather than rote memorization. Analyzing how different facts and concepts interrelate will enhance your ability to correctly answer these questions.
Q7: What are common mistakes to avoid when answering Assertion-Reason questions?
A7: Common mistakes include:
Not reading the statements carefully and missing key details.
Assuming the Reason explains the Assertion without checking the logical connection.
Confusing the order or relationship between the statements.
Overthinking and adding information not provided in the question.
Q8: What resources can help me practice Assertion-Reason questions?
A8: Use study guides specifically designed for Assertion-Reason questions. Online educational platforms and reference books for Class 8 Social Science also offer practice questions and explanations. xamcontent.com also provides assertion reason questions for cbse class 8 science.
