Buoyancy Set 1: Archimedes' Principle of Flotation Quiz

Who discovered the principle of flotation?

• Archimedes

• Einstein

• Newton

• Galileo

What does the buoyant force depend on?

• Displaced fluid

• Density of the object

• Weight of the object

• Volume of the object

What is the buoyant force?

• Force pushing the object down

• Force of gravity on the object

• Force pushing the object up

• Force of friction on the object

What happens to the buoyant force when an object displaces more fluid?

• It remains the same

• It becomes zero

• It increases

• It decreases

Why do ships with a large volume of empty space float?

• They are made of lightweight material

• They displace a lot of water

• They have a high density

• They have a strong magnetic force

What happens to the buoyant force when a piece of metal is flattened?

• It decreases

• It increases

• It becomes zero

• It remains the same

Why does a tiny piece of metal easily sink into water?

• It has a low weight

• It has a high density

• It displaces a lot of water

• It has a large volume

What causes the buoyant force in liquids and gases?

• Magnetic force

• Electrical force

• Pressure from the surrounding fluid

• Frictional force

What happens to the buoyant force when an object is completely submerged in water?

• It decreases with depth

• It remains the same at all depths

• It becomes zero at the bottom

• It increases with depth

What is the weight of the displaced fluid equal to, according to Archimedes' principle?

• Buoyancy of the object

• Weight of the surrounding fluid

• Buoyant force

• Weight of the object