Question

When two surfaces are coated with a lubricant then they will

• A. slide upon each other
• B. stick to each other
• C. roll upon each other
• D. jump on each other

Answer 1

The correct option is A

slide upon each other

When two surfaces are coated with a lubricant:

1. Two surfaces will slide upon each other after they are coated with a lubricant.
2. Coating lubricant on the surfaces will make them smoother, so the friction will be reduced, and due to the reduction of friction, they will slide upon each other, when one is pushed on the other.