Friction

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 two main types of friction?

Back

The two main types of friction are static friction (when an object is not moving) and kinetic friction (when an object is moving).

Front

How does surface roughness affect friction?

Back

Rough surfaces create more friction because they have more irregularities that grip each other.

Front

What happens to friction when the weight of an object increases?

Back

As the weight of an object increases, the friction between the object and the surface also increases.

Front

What is an example of a surface with low friction?

Back

Ice is an example of a surface with low friction, allowing objects to slide easily.

Front

What is an example of a surface with high friction?

Back

Carpet is an example of a surface with high friction, making it harder for objects to slide.

Front

What role does air resistance play in motion?

Back

Air resistance is a type of friction that opposes the motion of objects moving through the air.

Front

What is the effect of lubrication on friction?

Back

Lubrication reduces friction between surfaces, allowing them to move more easily.

Front

How can friction be beneficial?

Back

Friction is beneficial because it allows us to walk without slipping and helps vehicles to stop.

Front

What is the relationship between force and friction?

Back

The amount of friction is directly proportional to the force pressing the two surfaces together.