Lakhmir Singh Science Class 8 Solutions Force and Pressure (Chapter 11)
Lakhmir Singh and Manjit Kaur Solutions for Class 8 Science Chapter 11 – Force and Pressure will help you learn the concepts like force, its effect on motion and objects. Other main topics which are discussed in the chapter include pressure, atmospheric pressure, the pressure exerted by liquids and gases, forces due to an interaction, contact forces and non-contact forces.
Throughout this chapter of Lakhmir Singh Solutions for Class 8 Science, the concepts are explained in a comprehensive and very simple manner. The experts of Science at Instasolv have provided brief examples, activities, images, and diagrams to offer you an amazing learning experience and a better understanding of the topics in the chapter. So, revising the chapter with the help of solutions provided by us will help you to perform better.
Lakhmir Singh and Manjit Kaur Solutions of Class 8 Science have 5 exercises with a total of 100 questions. We have undergone thorough research to get accurate solutions for you. Also, you can follow the solutions anywhere and at any time.
Important Topics for Lakhmir Singh Solutions for Class 8 Science Chapter 11 Force
Force is defined as a push or a pull or we can say a physical quantity that can change the speed, direction, state, and dimension of an object. For example, when we put the force on the door it gets open.
The changes that force can bring are mentioned below:
- Change in speed
- Change in direction
- Change in dimension
- Change in state of the body
Types of Forces
Generally, there are two types of forces available i.e. Contact Force and Non-contact Force.
Contact Force: It is the force that acts only when two physical bodies are in contact or interact with each other. Examples of contact forces include muscular force, frictional force, and mechanical force.
Non-Contact Force: It is the force that acts when two entities are not in physical contact with each other. Examples of contact forces include magnetic force, electrostatic force, and gravitational force.
The pressure is known as the force applied per unit area. For example, when we add hot water into a plastic bottle, the bottle melts due to pressure. The factors on which pressure is determined are listed as follows:
- It is directly proportional to force
- It is inversely proportional to the area
Fluids are those liquids that can flow. For example, water. In general, there are three sources of matter i.e. solid, liquid, and gas. In solids, elements are tightly packed and it is very difficult to flow in them. In liquid, the elements are loosely packed and it can easily flow. In gases, elements are very loosely packed and can also flow very easily.
Fluid Pressure is distinct as the pressure exerted by fluids.
Properties of Fluid Pressure
There are various properties of fluid pressure which are listed as follows:
- Pressure decreases with height
- Pressure increases with an increase in depth
- Pressure applied at any point is equally diffused in all directions
Exercise-Wise Discussion of Lakhmir Singh and Manjit Kaur Solutions of Class 8 Science Chapter 11 – Force and Pressure
Lakhmir Singh Class 8 Science Solutions Chapter 11 – Force and Pressure consist of 5 exercises with a total of 100 questions in total. Here below, experts at Intsasolv has provided the exercise-wise discussion for Lakhmir Singh Solutions of Class 8 Science.
Exercise 1 – Very Short Answer Type Questions
The first exercise of the chapter has around 31 questions which are very short answer type questions. These questions are based on what is force, what is its effect on motion, and what can it do to objects onto which the force is applied.
Exercise 2 – Short Answer Type Questions
This exercise has around 32 questions which are entirely based on topics like pressure, atmospheric pressure, the pressure exerted by liquids and gases, force – a push or a pull, exploring forces, forces are due to an interaction, the force can change the shape of an object, a force can change the state of motion, contact forces, and non-contact forces.
Exercise 3 – Long Answer Type Questions
This exercise set has a total of 12 questions in which you need to give proper reasoning of the situation mentioned.
Exercise 4 – Multiple Choice Questions (MCQs)
This exercise set has a total of 20 questions in which you need to choose the right answer from the options available.
Exercise 5 – Questions Based on High Order Thinking
This exercise set has a total of 3 questions in which you need to tell the reasoning why a situation happened. This exercise also has a diagram question which makes it easier for you to understand the question.
With Lakhmir Singh Solutions for Class 8 Science Chapter 11 by Instasolv, you can now do complete revision before your exams. You will find the exercise-wise solutions in a step-by-step manner, making it easy for you to learn the topics in no time.
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Science is one of the important subjects in your Class 8 syllabus. So, follow the Lakhmir Singh and Manjit Kaur Solutions for Class 8 Science Chapter 11 provided by Instasolv to score well in your CBSE exams.
Lakhmir Singh Solutions for Class 8 Science are beneficial in clearing your every little confusion in grasping the ideas. By taking support from these, you can get the answers to all those questions on which you often get stuck.
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