Question

When the area of the edge of a knife is, the applied on object increases, thereby making the knife sharp and easy to use.

• A. increased
• B. force
• C. pressure
• D. decreased

Answer 1

Answer: (C), (D)

decreased

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> A knife is made sharp for efficient utility. Making the knife sharp reduces the area of contact between the knife and the object. When the area of contact decreases, the pressure applied on the object increases, which results in the object being cut easily. Lesser the area, greater is the pressure applied and easier it is to cut the object.