Buoyancy - Bill Nye

If two objects are made of the same substance and have the same mass, the shape of the object determines whether or not it sinks or floats in a fluid.

• True
• False

An object sinks in a fluid until it floats. 

• True
• False

If an object floats in water, the weight of the water displaced is greater than the weight of the body immersed in water. 

• true
• false

If you put a brick in a tub filled to the top with water, the amount of water that overflows is equal to the volume of the brick.

• true
• false

Water is the only fluid that can provide buoyancy.

• true
• false

Hot air balloons float because hot air displaces cool air in the atmosphere.

• true
• false

Tags

NGSS.MS-ESS2-6

Which of the following do NOT use compressed air to provide buoyancy?

• Airplanes
• Scuba divers
• Fish
• Submarines

Which of the following is a true statement?

• A rowboat has positive buoyancy
• A cork has negative buoyancy
• A brick has positive buoyancy
• A penny has neutral buoyancy