Types of Friction
Friction are categorised into four types. The four types of friction are,
- Static friction
- Sliding friction
- Rolling friction
- Fluid friction
Now let’s learn the same in detail,
Static friction
Static friction, also known as limiting frictional force, represents the resistance encountered between an object and the surface upon which it rests. To set an object in motion when it’s at rest on a surface, you must exert a force greater than the frictional force between them. This concept applies to various activities, such as walking and rock climbing.
Sliding friction
When we move things across another surface, a force acts on the object, called sliding friction. It’s not as strong as static friction. Think of sliding a block on a table, writing with a pen, or even playing on a slide—these are examples of sliding friction in action.
Rolling friction
Rolling friction is the resistance that happens when one object is made to roll on the surface of another. It’s notably less intense than kinetic friction. You can observe rolling friction in everyday activities like roller skating and the use of ball bearings, where objects roll smoothly across surfaces.
Fluid friction
A substance that can flow and take the shape of its container is known as a fluid. Fluid friction refers to the resistance that liquids or gases present when an object is in motion within them. To put it simply, it’s the frictional force exerted by fluids.
Friction
Friction in Physics is defined as a type of force that always opposes the motion of the object on which it is applied. Suppose we kick a football and it rolls for some distance and eventually it stops after rolling for some time. This is because of the friction force between the ball and the ground. Here, the force acting opposite to the motion of the ball that stops the ball is called the friction or friction force. Friction acts between two surfaces when one surface is in a state of motion.
In this article, we will learn about, Friction, Factors Affecting Friction, Causes of Friction, its advantages, disadvantages, and others in detail.
Table of Content
- What is Friction?
- Friction Formula
- Coefficient of Friction
- Causes of Friction
- Types of Friction
- Laws of Friction