NCERT Solutions for Class 8 Science Chapter 11 Force and Pressure are provided in this article. It covers all the important definitions, concepts, and methodologies that will be really beneficial for the students. The important topics that are included in this chapter are:
- Force: a push or a pull
- Forces are due to an interaction
- Exploring forces
- A force can change the state of motion
- Contact forces
- Non-contact forces
- Pressure
- Atmospheric pressure
Download PDF: NCERT Solutions for Class 8 Science Chapter 11 Force and Pressure
NCERT Solutions for Class 8 Science Chapter 11
Class 8 Science Chapter 11 Force and Pressure: Important Topics
Force is the push and pull movement. It arises due to the physical interaction between two objects leading to the change in the present state of the object. Pressure is the force acting perpendicularly on a unit area of a surface. In simple words, it is defined as a force acting on a surface perpendicularly due to which the force spreads over that area.
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Contact Force
As the name suggests, the Contact Force comes into existence when two objects are in contact with each other. There are various examples of the Contact Force in nature such as pulling a cart, a ball rolling on the ground stops due to friction, a streamlined body of an airplane to minimize air resistance, etc.
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Non-contact Force
A non-contact force is referred to as a force that acts on an object without coming physically in contact with it. The most familiar non-contact force is gravity, which confers weight. Contrarily, a contact force is a force that acts on an object coming physically in contact with it.
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