Types of Friction

Front

What is friction?

Back

Friction is the resistance that one surface or object encounters when moving over another. It acts in the opposite direction of motion.

Front

What are the four main types of friction?

Back

The four main types of friction are static friction, sliding friction, rolling friction, and fluid friction.

Front

Define static friction.

Back

Static friction is the force that keeps an object at rest and prevents it from starting to move. It acts on objects that are not moving.

Front

Define sliding friction.

Back

Sliding friction, also known as kinetic friction, is the force that opposes the motion of two surfaces sliding past each other.

Front

Define rolling friction.

Back

Rolling friction is the force that opposes the motion of a rolling object, such as a wheel or ball, on a surface.

Front

Define fluid friction.

Back

Fluid friction is the resistance encountered by an object moving through a fluid (liquid or gas). It depends on the speed of the object and the viscosity of the fluid.

Front

What is an example of static friction?

Back

An example of static friction is a book resting on a table that does not slide until a force greater than the static friction is applied.

Front

What is an example of sliding friction?

Back

An example of sliding friction is when you push a box across the floor and it slides.

Front

What is an example of rolling friction?

Back

An example of rolling friction is a bowling ball rolling down the lane.

Front

What is an example of fluid friction?

Back

An example of fluid friction is a swimmer moving through water.