What do you mean by buoyancy?
The upward force acting on a body immersed in a fluid is called upthrust or force of buoyancy. The phenomenon is called buoyancy.
The magnitude of buoyant force depends upon the density of the fluid.
When does an object float or sink when placed on the surface of water?
How does the force of gravitation between two bodies change when the distance between them is reduced to half?
Gravitational force acts on all objects in proportion to their masses. Why, then, does not a heavy object fall faster than a light object?
What is the magnitude of the gravitational force between the earth and 1 kg object on its surface? (Mass of the Earth = 6 x 104 kg and radius of earth is 6.4 x 106 m)
