The tendency or ability of an object to float.

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Presentation transcript:

The tendency or ability of an object to float. Buoyancy The tendency or ability of an object to float.

Buoyancy The pressure on the bottom of a submerged object is greater than the pressure on the top. The result is a net force in the upward direction.

Buoyant Force The upward force exerted by a fluid on a submerged or floating object.

Buoyancy The buoyant force works opposite the weight of an object.

Density and buoyancy: An object that has a greater density than the fluid it is in, will sink. If its density is less than the fluid it will float. Density

To find the volume of the prism use the formula V = lwh 3cm To find the volume of the prism use the formula V = lwh where V is volume, l is length, w is width, and h is height h w l V = lwh V = (3)(3)(3) V = 27 cm^3

A solid block of steel sinks in water A solid block of steel sinks in water. A steel ship with the same mass floats on the surface.

Density Changes in density cause a submarine to dive, rise, or float. This is called a Ballast Tank

Density Changes in density cause a submarine to dive, rise, or float.

Density Changes in density cause a submarine to dive, rise, or float.

DENSITY OF WATER 1g/cm³