Buoyancy/Viscosity

What is viscosity?

• A liquid

• A fluid

• A liquid's resistance to flow

• A fluid's flow

Tags

NGSS.MS-PS1-4

As the temperature increases the viscosity _______________, the molecules move further apart making the liquid "thinner".

• increases

• stays the same

• decreases

Tags

NGSS.MS-PS1-4

Fluids with very high viscosity flow very _______________________.

• fast

• not at all

• slow

• whenever it wants

Fluids with very low viscosity flow very _______________________.

• fast

• not at all

• slow

• whenever it wants

A brick sinks in water while a wooden block of the same size floats.  This is because the brick has a

• lower volume than the wooden block
• lower density than the wooden block
• higher volume than the wooden block
• higher density than the wooden block

_______________ is the measure of the upward force that a fluid exerts on an object that is submerged.

• ballooning

• pressure

• buoyancy

• viscosity

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

What does viscosity mean?

• How close the particles are together.

• The amount of matter in a substance.

• How easily a fluid flows.

• How dense a fluid is.

Peanut butter is an example of a...

• High viscosity liquid

• Low viscosity liquid

• It's not a liquid at all, Ms. L.

Water is an example of a...

• High viscosity liquid

• Low viscosity liquid

• It's not a liquid at all, Ms. L.