Fluids in the Real World

Which of the following states of matter are considered fluids? (Select all that apply)

• Solids

• Liquids

• Gas

Some fluids flow at different speeds. Why do you think this is?

Flow Rate is measured in which units?

• L/s

• m/s

• km/hr

• mL/hr

When water molecules stick to other water molecules, beads form. This is because of...

• cohesion

• adhesion

• solution

• nonpolarity

Surface tension is the property of water in which...

• water molecules at the surface tend to stick together.

• water spills easily.

• water tends to be see-through.

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Water droplets take a spherical shape (as pictured) because of ____________

• adhesion
• cohesion
• capillary action
• solubility

Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?

• adhesion
• surface tension
• solvent properties
• nonpolar

Cohesion is the force of attraction between the particles of one substance and the particles of another substance.

• True

• False

Answer explanation

That is Adhesion

Cohesion is th force of attraction between the particles of a substance.

• True

• False