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

Tags

NGSS.MS-PS3-4

The term fluids generally applies to:

• solid and liquid

• liquid and gas

• solid and plasma

• water only

Which box has a higher density?  

• Box A

• Box B

• cannot be determined

• they are the same

"The resistance of a fluid to flowing" is MOST likely the definition for which of the following terms:

• Pressure

• Density

• Buoyancy

• Viscosity

A substance classified as a fluid _______.

• quickly expand into any available space

• are held in fixed positions

• are very far from each other

• may slide extermely slowly past one another

Hydraulic systems use ________ to transfer force from one point to another.

• Air

• Liquid

• Solid

• Gas

Which of the following refers to the ability of a fluid to support an object in or on the fluid?

• density

• gravity

• buoyancy

• hydraulics

Label the two arrows with the correct force

a

b

Gravity

Density

Buoyancy

Displacement

According to Bernoulli's Principle, when the wind speed is high, wind pressure is ________

• high

• low

• not enough information

• None of the above