Friction Flashcard

Front

What is the force that opposes the motion of an object due to friction called?

Back

Frictional force

Front

Which type of friction occurs when an object is in motion?

Back

Kinetic friction

Front

What is the coefficient of static friction if it takes 44 N of force to move an 86-N box on a horizontal surface?

Back

0.51

Front

What is the formula to calculate the coefficient of friction?

Back

Coefficient of friction = Frictional force / Normal force

Front

What type of friction occurs when an object is at rest and a force is applied?

Back

Static friction

Front

What is fluid friction?

Back

Friction that occurs when an object moves through a fluid (liquid or gas).

Front

What is rolling friction?

Back

Friction that occurs when an object rolls over a surface.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on objects at rest, while kinetic friction acts on moving objects.

Front

If a box weighs 100 N and the frictional force is 30 N, what is the coefficient of kinetic friction?

Back

Coefficient of kinetic friction = 30 N / 100 N = 0.3

Front

What happens to the frictional force as the normal force increases?

Back

The frictional force increases as the normal force increases.