Physical Science - Chapter 12 (Pearson)

Front

What is the friction force that acts on rolling objects?

Back

Rolling friction is the force that opposes the motion of rolling objects.

Front

What is the force that opposes the direction of motion of an object as it slides over a surface?

Back

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

Front

What is the measure of the inertia of an object?

Back

Mass is the measure of the amount of matter in an object, which is a measure of its inertia.

Front

What is the friction force that acts on objects that are not moving?

Back

Static friction is the force that opposes the initiation of motion of an object at rest.

Front

What is the force that opposes the motion of objects that touch as they move past each other?

Back

Friction is the force that resists the sliding motion of two surfaces in contact.

Front

What is the difference between static friction and sliding friction?

Back

Static friction acts on objects at rest, while sliding friction acts on objects in motion.

Front

What is the role of friction in everyday life?

Back

Friction allows us to walk without slipping, enables cars to grip the road, and helps objects to stay in place.

Front

How does mass affect the force of friction?

Back

The greater the mass of an object, the greater the force of friction acting on it, as friction is proportional to the normal force.

Front

What is the relationship between friction and surface texture?

Back

Rough surfaces generally produce more friction than smooth surfaces due to increased contact area.

Front

What is fluid friction?

Back

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