Force
Any action which causes pull, hit or push on a body is called a Force. Force is used in our everyday activities like pushing, pulling, lifting, stretching, twisting and pressing. Force cannot be seen but it can be judged only by its effect.
A force is a vector quantity, which means it has both magnitude and direction.
Formula of Force
where F is Force, m is Mass and a is acceleration
Two main types of Force are
Contact Force and Non-Contact Force
- Contact Force it has two branches
>Applied >Gravitational
>Normal >Magnetic
>Friction >Nuclear
Let's take a look at Push which has Applied Force
Applied Force is a basically Muscular force that is applied to an object by a person or another object. If a person is pushing a desk across the room, then there is an applied force acting upon the object. The applied force is the force exerted on the desk by the person.
Normal Force
The normal force is also called as support force exerted upon an object that is in contact with another stable object. For example, if a book is resting on a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book.
Friction Force
This force is static friction force, which is the force exerted on the surface by another when there is no motion between the two surfaces
To know more about Friction force click the link below
https://physicsknowledgeworld.blogspot.com/2018/07/know-about-friction.html
Gravitational Force
The gravitational force is a force that attracts any two objects with mass. We call the gravitational force attractive because it always tries to pull masses together, it never pushes them apart. In fact, every object, including you, is pulling on every other object in the entire universe!
Acceleration of gravity 9.8 m/s^2
Magnetic Force
Magnetic forces are non-contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few 'magnetic' metals and not all matter. Magnets are attracted to and repel other magnets.
The normal force is also called as support force exerted upon an object that is in contact with another stable object. For example, if a book is resting on a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book.
This force is static friction force, which is the force exerted on the surface by another when there is no motion between the two surfaces
https://physicsknowledgeworld.blogspot.com/2018/07/know-about-friction.html
- The second type of contact force is Pull
Gravitational Force
The gravitational force is a force that attracts any two objects with mass. We call the gravitational force attractive because it always tries to pull masses together, it never pushes them apart. In fact, every object, including you, is pulling on every other object in the entire universe!
Acceleration of gravity 9.8 m/s^2
Magnetic forces are non-contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few 'magnetic' metals and not all matter. Magnets are attracted to and repel other magnets.
Nuclear Force
Nuclear forces are the forces that act between two or more nucleons. The nuclear force is about 10 millions times stronger than the chemical binding that holds atoms together in molecules. It is greatly related to chemistry. However, the range of the nuclear force is short, only a few femtometers (1 fm =10^-15 m), beyond which it decreases rapidly.
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