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 types of friction?

Back

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

Front

What surface has the least friction?

Back

A smooth surface, like ice, has less friction compared to rough surfaces.

Front

What happens to friction when surfaces are rough?

Back

Rough surfaces create more friction, making it harder for objects to slide over each other.

Front

How does weight affect friction?

Back

Heavier objects create more friction because they press down harder on the surface.

Front

What is an example of friction in everyday life?

Back

When you rub your hands together, the heat you feel is caused by friction.

Front

What role does friction play in walking?

Back

Friction between your shoes and the ground helps you to walk without slipping.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest from moving when a force is applied.

Front

What is kinetic friction?

Back

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

Front

How can we reduce friction?

Back

We can reduce friction by using lubricants like oil or by using smoother surfaces.