Buoyancy

What is the upward force experienced by a body, when it is immersed in a fluid, known as?

• Tangential force

• Buoyant force

• Centrifugal force

• Hydraulic force

Answer explanation

When a body is immersed in a fluid (liquid or gas) it exerts an upward force on that body. This upward force is called up thrust or buoyant force, The whole phenomenon is called as buoyancy.

What is the density of water? ( Tick all correct answers)

• 1 kg/m³

• 1000 kg/m³

• 1000 g/cm³

• 1 g/cm³

The formula for density is...

• mass/ acceleration

• volume/ mass

• mass/ volume

• acceleration/ mass

Which liquid is the least dense?

• oil

• water

• syrup

• plastic bottle

Which will result in positive buoyancy?

• When the buoyant force is greater than the force of gravity

• When the buoyant force is less than the force of gravity

• When the buoyant force is equal to the force of gravity

What is the volume of Object X?

• 10.0 cm³

• 15.0 cm³

• 25.0 cm³

• 20.0 cm³