Force of Friction Quiz

Front

Weight affects friction:

Back

Friction increases with weight.

Front

Factors affecting friction:

Back

Nature of surfaces, normal force, lubricants/contaminants.

Front

Formula for frictional force?

Back

Frictional force = coefficient of friction x normal force

Front

Static vs Kinetic Friction

Back

Static friction: object at rest; Kinetic friction: object in motion.

Front

Effect of surface roughness on friction:

Back

Friction increases.

Front

Unit of measurement for frictional force?

Back

Newton (N)

Front

Relationship between normal force and friction:

Back

Friction is directly proportional to normal force.

Front

Force of friction when an object starts moving?

Back

The force of friction decreases.

Front

Role of coefficient of friction in frictional force?

Back

Represents the roughness of the surfaces in contact.

Front

Difference between frictional and normal force?

Back

Frictional force opposes motion; normal force supports an object's weight.