# What Is An External Force?

Charlotte Miller

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Are you curious to know what is an external force? You have come to the right place as I am going to tell you everything about an external force in a very simple explanation. Without further discussion let’s begin to know what is an external force?

## What Is An External Force?

In physics, an external force is a force that acts on an object from outside of the object itself. These forces are responsible for changing the motion of an object or altering its shape or orientation. Understanding external forces are essential for many fields of study, including physics, engineering, and biomechanics.

External forces can be divided into two categories: contact forces and non-contact forces. Contact forces are those that occur when two objects come into direct physical contact with each other. Examples of contact forces include friction, tension, and normal force. Non-contact forces, on the other hand, are those that occur without direct physical contact between objects. Examples of non-contact forces include gravity, electrostatic force, and magnetic force.

External forces can also be further classified as either conservative or non-conservative forces. Conservative forces are those that do not dissipate energy as they act on an object. These forces can be described by a potential energy function, and the total energy of the system remains constant over time. Examples of conservative forces include gravity and electrostatic force. Non-conservative forces, on the other hand, are those that do dissipate energy as they act on an object. Examples of non-conservative forces include friction and air resistance.

In many applications, external forces can be modeled using mathematical equations. For example, the motion of a ball thrown through the air can be described using the equations of motion, which take into account external forces such as gravity and air resistance. Similarly, the behavior of a bridge subjected to wind or seismic loads can be modeled using finite element analysis, which takes into account external forces acting on the structure.

Understanding external forces are important in many fields of study, as it allows us to predict how objects will behave in different situations. In physics, for example, the study of external forces is essential for understanding the motion of objects in the universe. In engineering, understanding external forces are important for designing safe and efficient structures that can withstand external loads. And in biomechanics, understanding external forces is important for understanding the mechanics of the human body and designing prosthetic devices and medical implants.

In conclusion, an external force is a force that acts on an object from outside of the object itself. External forces can be contact or non-contact, conservative or non-conservative, and are responsible for changing the motion of an object or altering its shape or orientation. Understanding external forces are essential in many fields of study, including physics, engineering, and biomechanics, and allows us to predict how objects will behave in different situations.

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## FAQ

### What Is An External Force Example?

Generally, external forces include gravitational force (or weight) and normal force. frictional force. spring force.

### What Are The 4 External Forces?

For our purposes, we will simply say that external forces include the applied force, normal force, tension force, friction force, and air resistance force. And for our purposes, the internal forces include gravity forces, magnetic forces, electrical forces, and spring forces.

### What Exactly Is An External Force?

An external force is one acting on a system from outside the system, as opposed to internal forces, which act between components within the system.

### What Is External Vs Internal Force?

Internal force is defined as a force that occurs within a system without any external potency. An external force is a force acting on the system from the environment due to external agents. There is one crucial point to remember. Acceleration can only be induced by external forces.

### What Are The 5 External Forces?

External forces of change are classified under five broad categories.

• Economic environment.
• Technological environment.
• Political and government environment.
• Socio-cultural environment.

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