Buoyancy

Archimedes' Principle states that... 

• The buoyant force acting on an object equals the volume of the fluid displaced by the object.

• The buoyant force acting on an object equals the weight (force of gravity) of the fluid displaced by the object.

• The buoyant force acting on an object will always be equal. 

Some things that will float in water are:

• a solid clay ball and a lacrosse ball

• rocks and ceramic weights

• a textbook and a pebble

• a cork and a medicine cup

Tags

NGSS.5-PS1-3

Which liquid is the least dense?

• oil

• water

• syrup

• plastic bottle

Tags

NGSS.MS-PS1-2

Archimides principle states that the buoyant force of an object goes upward in the same weight of the fluid that the object displaces.

• true

• false

a duck floats on the water because its weight is equal to the buoyant force

• true

• false

a rock sinks because its weight is greater than the buoyant force

• true

• false

the shape of an object also helps determine whether it will sink or float.

• true

• false

wether an object floats depends on its weight

• true

• false

a rock sinks because its weight is less than the buoyant force

• true

• false

Which principle explains why ships float on water?

• Pascal's Principle

• Bernoulli's Principle

• Archimedes' Principle

• Newton's Third Law