Understanding Buoyancy and Floating Objects

What is the force called that pushes upward on an immersed object in a fluid?

• Gravity

• Buoyancy

• Friction

• Magnetism

Which type of water is denser, making it easier to float in?

• Freshwater

• Saltwater

• Rainwater

• Tap water

What happens to an object if the buoyant force is equal to its weight?

• It sinks

• It floats

• It dissolves

• It evaporates

What is filled inside a life jacket to help keep a person afloat?

• Water

• Sand

• Trapped air

• Rocks

Why do large ships stay afloat?

• They are made of wood

• They have large, u-shaped hulls

• They are very light

• They have engines

What does a life jacket do to a person's weight in water?

• Increases it

• Decreases it

• Doubles it

• Has no effect

What is the relationship between fluid density and buoyant force?

• Denser fluids exert less buoyant force

• Denser fluids exert more buoyant force

• Fluid density does not affect buoyant force

• Buoyant force is always the same

What happens to an object if the buoyant force is less than its weight?

• It floats

• It sinks

• It flies

• It stays still

What is displaced when an object is submerged in a fluid?

• Air

• Water

• Sand

• Oil

Why is it easier to float in the Dead Sea?

• The water is very cold

• The water is super-salty and dense

• The water is shallow

• The water is warm