Buoyancy

Buoyancy

​Learning Objective

• Determine the buoyancy of an object in a variety of fluids.

• Understand and apply Archimedes' principle.

Drag and Drop

Drag all the objects that can float in water​ ​ ​

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Drag these tiles and drop them in the correct blank above

Wooden block

Plastic bottle

Ping Pong Ball

Ice Cube

Coconut

Metal Coins

Glass

Rocks

Steel Balls

Bricks

Open Ended

Why do things float or sink?

Multiple Choice

What is buoyancy?

• The ability of an object to dissolve in water.

• The ability of an object to float or sink in water.

• The temperature at which an object boils.

• The ability of an object to absorb water.

Multiple Choice

Why do some objects float while others sink?

• Because of their color.

• Because of their size.

• Because of their density compared to water.

• Because of their temperature.

Multiple Choice

What is Archimedes' principle?

• An object will float if it is warmer than the surrounding fluid.

• The buoyant force on an object is equal to the weight of the fluid it displaces.

• An object will sink if it is larger than the fluid it is placed in.

• The shape of an object determines if it will sink or float.

Multiple Choice

According to the video, why does a ship float despite being made of heavy materials like steel?

• It has a special coating that repels water.

• Its weight is less than that of water.

• It is hollow and contains air, making its overall density less than water.

• The steel becomes lighter in water.

Multiple Choice

TRUE or FALSE？

An object will float if the buoyant force is greater than its weight.

• TRUE

• FALSE

Multiple Choice

TRUE or FALSE？

Archimedes' principle applies only to objects submerged in water, not in other fluids.

• TRUE

• FALSE

Match

Match the following

• Buoyant Force

• Density

• Archimedes' Principle

• Displacement

Upward force exerted by a fluid on an object

Mass per unit volume of a substance

A principle that states the buoyant forc

The amount of fluid pushed aside by an o

• Upward force exerted by a fluid on an object

• Mass per unit volume of a substance

• A principle that states the buoyant forc

• The amount of fluid pushed aside by an o