NCERT Solutions for Class 8 Science Chapter 11
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NCERT syllabus helps students to learn and prepare well for all subjects that helps to be clear and solid. This helps to learn the subjects from the start of one’s academic career. Lower Classes help the student to form the pillars to their future knowledge base. This is why Vedantu also offers courses on the subjects taught in these classes. Vedantu’s free Class 8 Science Chapter 11 questions and answers compilation is thus made in way, so that reading it students can understand all the fundamental concepts related to Force and Pressure. The language is simple and easy to understand. Even though the PDF is in question and answer format, we have provided detailed explanations that ensures you are not left with any nagging doubts.
Suppose you are in your school, It is recess time. You bring football to the playground and place it down. Right now it is just sitting on the ground. As soon as you kick it, there is an interaction between your foot and the football. You push the football with your foot and as a result, the football moves forward. This push is called force. Did the football move before there is an interaction between your foot and the ball? No. So the criteria of force is - there should be some kind of interaction. Another example of force can be - opening your cupboard doors. This is called the ‘pull’ force.
So, in the previous paragraph, we learnt that it is necessary to have some kind of interaction to create force. This interaction can happen not by contact only but even by things like a gravitational pull, magnetic energy, etc. So you see as far as the aspect of contact is concerned, a force can be either -
Contact Force - Like pushing a car.
Indirect Force - Like falling of an apple from a tree.
Further, the forces can again be divided into many different types and when it comes to contact force, there are many different kinds of contact forces which are as follows:
Indirect Force are further divided as follow:
Our free NCERT Class 8 Science Chapter 11 Force and Pressure PDF discusses all the aspects of Force in detail.
If force helps you to displace an object, Pressure is the expression of that force. It is measured in Pascal (Pa). Our Chapter 11 Science Class 8 discusses Pressure in an easy-to-understand way.
The different types of Pressure are:
The solutions provided by Vedantu will help you clear half of the confusions and you can download all the solutions for 'Force and Pressure' Class 8 NCERT in a PDF format for free .
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