Daily Practice Problems
Class 8 Science
Friction
daily practice problem

Question 1.

What is the force of friction?

Question 2.

What are the factors affecting friction?

Question 3.

Why friction is known as a necessary evil?

Question 4.

Friction depends

(a) on the nature of substances in contact.

(b) not on the nature of substances in contact.

(c) can be both (a) and (b).

(d) none of the above.

Question 5.

Friction can be increased by:

(a) making a surface smooth.

(b) making a surface rough.

(c) both (a) and (b).

(d) none of the above.

Question 6.

What do you understand by rolling friction?

Question 7.

Fluid friction can be ___________ by giving suitable shapes to bodies moving in fluids.

(a) maximised

(b) minimised

(c) both (a) and (b)

(d) none of the above

Question 8.

The sole of the shoes and the tyres of the vehicle are treaded to ___________ friction.

(a) increase

(b) decrease

(c) both (a) and (b)

(d) maintain

Question 9.

In many machines, friction is ___________ by using ball bearings.

(a) reduced

(b) increased

(c) balanced

(d) created

Question 10.

Rolling friction is __________ than sliding friction.

(a) greater

(b) larger

(c) very much higher

(d) smaller

Question 11.

Fluids are:

(a) iron materials.

(b) gold materials.

(c) gases and liquids.

(d) none of the above.

Question 12.

The frictional force exerted by fluids is also known as:

(a) drag force.

(b) gravitational force.

(c) elastic force.

(d) electrostatic force.

Question 13.

Why should we pull luggage fitted with rollers?

Question 14.

What is spring balance?

Question 15.

When one body rolls over another body, _____________ friction comes play.

(a) rolling

(b) sliding

(c) fluid friction

(d) static friction

Question 16.

_____________ friction comes into play when we try to move an object at rest.

(a) Sliding

(b) Static

(c) Rolling

(d) Fluid

Question 17.

___________ friction comes into play when an object is sliding over another.

(a) Sliding

(b) Static

(c) Rolling

(d) Fluid

Question 18.

___________ opposes relative motion between two surfaces in contact.

(a) Force

(b) Work

(c) Friction

(d) None of the above

Question 19.

For a given pair of surfaces, friction depends upon the state of _____________ of those surfaces.

(a) smoothness

(b) roughness

(c) both (a) and (b)

(d) none of the above

Question 20.

Friction can be increased by making a surface ______________.

(a) smooth

(b) rough

(c) both (a) and (b)

(d) bumpy

**********

Problem-solving on Class 8 Science Friction NCERT Chapter 12 after learning a theoretical concept is crucial for several reasons:

  1. Application of Knowledge: Problem-solving allows you to apply the theoretical concepts of the topic Class 8 Science Friction you have learned to real-life situations. It helps you bridge the gap between abstract knowledge and practical scenarios, making the learning more relevant and meaningful.
  2. Understanding Deeper Concepts: When you encounter problems related to a theoretical concept that you learned in Class 8 Science Friction NCERT Chapter 12, you are forced to delve deeper into its intricacies. This deeper understanding enhances your comprehension of the subject and strengthens your grasp of the underlying principles.
  3. Critical Thinking: Problem-solving encourages critical thinking and analytical skills. It requires you to analyze the problem, identify relevant information, and devise a logical solution. This process sharpens your mind and improves your ability to approach complex challenges effectively.
  4. Retention and Recall: Actively engaging in problem-solving reinforces your memory and improves long-term retention. Applying the concepts learned in Friction Class 8 Science in practical scenarios helps you remember them better than passive reading or memorization.
  5. Identifying Knowledge Gaps: When you attempt to solve problems, you may encounter areas where your understanding is lacking. These knowledge gaps become evident during problem-solving, and you can then focus on filling those gaps through further study and practice. You can refer Friction Class 8 Science Notes on LearnoHub.com
  6. Boosting Confidence: Successfully solving problems after learning a theoretical concept boosts your confidence in your abilities to handle Friction. This confidence motivates you to tackle more challenging tasks and improves your overall performance in the subject.
  7. Preparation for Exams and Challenges: Many exams, especially in science, mathematics, and engineering, involve problem-solving tasks. Regular practice in problem-solving prepares you to face these exams with confidence and perform well. It is also advised to take tests on Friction Class 8 Science Online Tests at LearnoHub.com.
  8. Enhancing Creativity: Problem-solving often requires thinking outside the box and exploring various approaches. This fosters creativity and innovation, enabling you to come up with novel solutions to different problems.
  9. Life Skills Development: Problem-solving is a valuable life skill that extends beyond academics. It equips you with the ability to tackle various challenges you may encounter in personal and professional life.
  10. Improving Decision Making: Problem-solving involves making decisions based on available information and logical reasoning. Practicing problem-solving enhances your decision-making skills, making you more effective in making informed choices.

In summary, problem-solving after learning a theoretical concept on CBSE Friction Class 8 Science is an essential part of the learning process. It enhances your understanding, critical thinking abilities, and retention of knowledge. Moreover, it equips you with valuable skills that are applicable in academic, personal, and professional contexts.

You must have heard of the phrase “Practice makes a man perfect”. Well, not just a man, practice indeed enhances perfection of every individual.

Practicing questions plays a pivotal role in achieving excellence in exams. Just as the adage goes, "Practice makes perfect," dedicating time to solve a diverse range of exam-related questions yields manifold benefits. Firstly, practicing questions allows students to familiarize themselves with the exam format and types of problems they might encounter. This familiarity instills confidence, reducing anxiety and improving performance on the actual exam day. Secondly, continuous practice sharpens problem-solving skills and enhances critical thinking, enabling students to approach complex problems with clarity and efficiency. Thirdly, it aids in identifying weak areas, allowing students to focus their efforts on improving specific topics. Moreover, practice aids in memory retention, as active engagement with the material reinforces learning. Regular practice also hones time management skills, ensuring that students can allocate appropriate time to each question during the exam. Overall, practicing questions not only boosts exam performance but also instills a deeper understanding of the subject matter, fostering a holistic and effective learning experience.

All About Daily Practice Problems on Class 8 Science Friction NCERT Chapter 12

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on Class 8 Science Friction NCERT Chapter 12 useful.

Last but not least, to get the best hold on Class 8 Science Friction NCERT Chapter 12, do not forget to check out:

  • Friction Class 8 Science Best videos
  • Friction Class 8 Science NCERT Solutions
  • Class 8 Science Friction Revision notes
  • Friction Class 8 Science DPPs, Download PDF of solutions
  • Class 8 Science Friction Online Tests
  • Class 8 Science Sample papers

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