When two objects rubbed against each other they

When two objects are rubbed against each other, they create friction. Friction is a force that resists the motion of two objects sliding against each other. This can result in heat and wear of the materials. The amount of friction depends on the materials of the objects and the roughness of their surfaces.

Here are the steps:

1. Two objects come into contact: When two objects are brought into contact with each other, the surface irregularities, or roughness, of each object can interlock.

2. Force is applied: When a force is applied to move one object against the other, the surface irregularities of the two objects resist this motion.

3. Friction is created: This resistance to motion is known as friction. Friction can cause heat and can cause wear and tear on the objects.

4. Heat is generated: The friction between the two objects can generate heat. This is why your hands get warm when you rub them together.

5. Wear and tear: Over time, friction can cause the surfaces of the objects to wear down. This is why car tires and brake pads need to be replaced over time.

6. Friction depends on materials: The amount of friction depends on the materials the objects are made of and how rough their surfaces are. For example, it's harder to slide a block of wood across a rough concrete floor than a smooth tile floor.