Friction Flashcard

Front

What is friction?

Back

Force that opposes motion.

Front

What is the force of friction between a 950-N block of ice and the horizontal ground if μ = .12?

Back

114 N.

Front

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

Back

Kinetic friction.

Front

What factors affect the force of friction?

Back

Nature of the surfaces, normal force, presence of lubricants or contaminants.

Front

What is the coefficient of friction if the frictional force is 200 N and the normal force is 800 N?

Back

0.25.

Front

Define static friction.

Back

The force that keeps an object at rest and prevents it from moving.

Front

What is kinetic friction?

Back

The force that opposes the motion of two surfaces sliding past each other.

Front

Explain the role of normal force in friction.

Back

Normal force is the perpendicular force exerted by a surface on an object in contact with it, affecting the frictional force.

Front

What is the formula for calculating the force of friction?

Back

Frictional force = μ × Normal force.

Front

What is fluid friction?

Back

The resistance encountered by an object moving through a fluid (liquid or gas).