Question

1. Which is the name of the force acting on an object perpendicular to its surface?
2. Name the physical quantity whose unit is "pascal" (Pa).
3. A solid object is gently placed on the surface of a fluid. The fluid exerts a force on the solid in vertically upward
direction. Name that force.
4. What is the SI unit of density?
5. On which principle is a boat or a ship designed?​

Answer 1

Answer:

1. normal
2. pressure
3. boyancy
4. kg/m^3
5. on the basis of Archimedes principle of boyancy