Adhesive Force

Q.

If two pieces of same metal having Ultra smooth surfaces are kept in contact comment on the friction between two surfaces when we try to move one on the other justify your answer with proper reasons.

How do F1 cars manage to develop friction even though they don't have treading

Q. When two smooth surfaces are in contact, they start to form bonds and begin to stick to each other. This phenomenon is called ________.

1. cohesion
2. plowing effect
   
3. adhesion
   
4. magnetism
   

Q. The formation of bonds between two smooth surfaces because of which they cling to each other is known as:

1. plowing effect
2. adhesion
3. interlocking
4. rolling friction

Q. When two perfectly smooth surfaces slide over each other, the primary cause of friction is .

1. interlocking
2. roughness
3. adhesion

Q. Which factor is responsible for friction between two smooth and even surfaces?

1. Adhesion
2. Roughness
3. Plowing effect
4. Uneven interlocking of irregularities