Fluids

If an object sinks in a fluid, _____.

• the density of the fluid is greater than the density of the object
• the density of the fluid is less than the density of the object
• the density of the fluid is equal to the density of the object
• density has nothing to do with whether an object sinks or floats, only which state of matter the object is

Water pressure increases as depth increases. 

• True
• False

The term fluids generally applies to:

• solid and liquid

• liquid and gas

• solid and plasma

• water only

Bernoulli’s principle states that the pressure in a fluid decreases as its velocity increases. 

• True
• False

The shape of an airplane wing causes the air above the wing to travel slower than the air below the wing.

• True
• False

When air is moving quicker it's pressure is greater.

• True
• False

An object heavier than the amount of the fluid it displaces, will sink in a fluid. 

• True
• False

The water that fills a pool to the brim is equal in weight to that same water that fills the pool to the brim but with 10 people in it.

• True
• False

Air is compressible, and water is incompressible.

• True

• False

This is what happens to an object when the gravitational force is stronger than the buoyant force.

• sinks

• floats

• neutrally buyant

• I don't know...