Viscosity and Flow Rate

Which of these are classified as fluids?

• Solid

• Liquid

• Gas

Which of these are fluids?

• Sand

• Water

• Oxygen

• Rocks

Tags

NGSS.MS-ESS2-4

What is Viscosity?

• A fluids colour.

• A fluids temperature.

• A fluids resistance to flow.

Which of these factors affects Viscosity?

• Temperature

• Colour

• Taste

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is flow rate?

• The speed of a fish swimming across a lake.

• The speed of a rocket going to the moon.

• The speed which a fluid flows from one point to another.

A fluid travels a distance of 4.5 cm in 3 seconds. Calculate the flow rate of this fluid in cm/s.

A bottle of syrup is poured down a 50 cm tray. If it takes the syrup 40 seconds to flow all the way down the tray, then what is the syrups flow rate (cm/s)?

If the tray was cooled down, how would this affect the syrup's flow rate?

• It would go up

• It would go down

• It would not change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you needed to make a liquid less viscous, select all the things you could do to lower the viscosity.

• decrease temperature

• increase temperature

• add solvent

• evaporate away solvent

Tags

NGSS.MS-PS1-4

Low viscosity can be described as...

• liquids that flow quickly

• liquids that flow slowly