Buoyancy

Buoyancy is:

• When an object sinks in liquid

• The ability to float in some liquid material

What is buoyant force?

• An upward force exerted by fluids on an object.
• An downward force exerted by fluids on an object.

Which box has a higher density?  

• Box A
• Box B
• cannot be determined
• they are the same

Would this object float or sink?

• Float

• Sink

What does it mean for an object to sink?

• It sits at the ground level below the surface water.

• It sits at the top of liquid.

Would this object float or sink?

• Float

• Sink

Life jackets help people (and dogs) stay buoyant in water.

• False

• True

 Whose principle says buoyant force = the weight of the fluid an object displaces 

• Archimedes

• Pascal

• Bernoulli

• Einstein 

What is the direction of buoyancy?

• Upward

• Downward

• Various directions

Who discovered the principle of buoyancy?

• Isaac Newton

• Albert Einstein

• Galileo Galilei

• Archimedes