Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What are the main types of friction?

Back

The main types of friction are static friction, sliding (kinetic) friction, rolling friction, and fluid friction.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from starting to move.

Front

What is sliding (kinetic) friction?

Back

Sliding friction is the force that opposes the motion of two surfaces sliding past each other.

Front

What is rolling friction?

Back

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

Front

What is fluid friction?

Back

Fluid friction is the resistance encountered by an object moving through a fluid (liquid or gas).

Front

Is air resistance a type of fluid friction?

Back

Yes, air resistance is a type of fluid friction that opposes the motion of objects moving through the air.

Front

How does the surface texture affect friction?

Back

Rough surfaces generally create more friction than smooth surfaces due to increased contact area.

Front

What is the role of weight in friction?

Back

The greater the weight of an object, the greater the frictional force it experiences, as friction is proportional to the normal force.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes direction.