Solutions of Friction from 1 Explore: A Science Textbook 8
Shobhita Johari Science Solutions from Chapter 10 - Friction
Shobhita Johari, Pankaj Tyagi and, Parminder Chopra's 1 Explore: A Science Textbook 8 detailed solutions to all the exercises of Friction for 8th CBSE are provided here. The topics covered are such as Friction, Rolling Friction and, Advantages And Disadvantages Of Friction. The points to remember in the Shobhita Johari, Pankaj Tyagi and, Parminder Chopra's Book Solutions is ideal for quick revision.
Practice Other Topics from Friction
The topic describes the concept of friction. It elaborates on how friction works at length through various examples from daily lives. Factors that affect friction are discussed here. It also contains three activities for practical understanding.
The topic highlights the causes of friction. We learn even smooth surfaces are rough on the microscopic level, which helps in creating friction. We will study that friction depends on the nature of the pressure put on the surfaces in contact.
The topic elucidates static and static friction force, and sliding friction and sliding friction forces. It further discusses the occurrences of these two forces and their interdependency while moving an object.
The topic suggests few advantages and few disadvantages of friction. We learn that while friction makes work easier, it opposes and makes the work difficult sometimes. All the points are discussed with proper explanation and analysis.
The topic continues to elaborate on how to convert the limitations of friction to an extension of it. We notice that we can increase or decrease friction to turn advantageous for us. It concludes that we cannot lessen friction to zero in any way.
The topic discusses rolling friction using examples. We learn how the rolling friction force makes the motion much easier than static or sliding friction force. The two activities show how circular or cylindrical objects work on rolling friction.
This topic provides knowledge about fluid friction that occurs in air and water with some examples. We know fluid friction force is the force applied to overcome fluid friction. Three factors have been recognised that affect fluid friction.
