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

How does friction affect speed?

Back

More friction decreases speed.

Front

What are the two main factors that determine the amount of friction between two objects?

Back

Force and roughness between surfaces.

Front

What type of friction slows down a rolling soccer ball?

Back

Rolling friction.

Front

Which material would likely have the most friction?

Back

Sand Paper.

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 friction?

Back

Sliding friction is the force that opposes the motion of an object sliding over a surface.

Front

What is rolling friction?

Back

Rolling friction is the force that opposes the motion of an object that is rolling over a surface.

Front

What is fluid friction?

Back

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

Front

How does surface roughness affect friction?

Back

Rougher surfaces generally create more friction than smoother surfaces.