Properties of Matter

Viscosity is

• The resistance of a fluid to flow.

• The force that causes objects to float.

• How much matter is in a liquid.

• How fast the liquid will boil.

A liquid with a high viscosity will

• Flow slowly

• Flow quickly

• Never flow

• Always flow

Fluids have different viscosities because

• They have different densities.

• They are different colors.

• They are made of different elements.

• They have different intermolecular forces.

Intermolecular forces

• keep the molecules of a material together.

• are stronger in liquids than in gases.

• get weaker with an increase in temperature.

• determine how viscous a fluid is.

How can we decrease the viscosity of a fluid?

• Increase the temperature.

• Decrease the temperature.

• Add water.

• The viscosity of a fluid never changes.

Buoyancy is caused by

• A fluid exerting a force on an immersed object.

• an object floating in a fluid.

• an object sinking in a fluid.

• The blue stuff in water.

Which of the following has the highest density

• Air

• Fresh Water

• Salt Water

The density of water is

• 1 g/mL

• 1.01 g/mL

• 10 g/mL

• 0.5 g/mL

Archimedes Principle tells us the buoyant force is equal to

• The weight of the immersed object.

• The volume of the immersed object.

• The weight of displaced fluid.

• The volume of displaced fluid.

The units for density are

• g/mL

• g/cm³

• g

• mL