Fluids and Density Quiz

Which of the following statements best describes fluids?

• Fluids have a fixed shape.
• Fluids can flow and take the shape of their container.
• Fluids are always incompressible.
• Fluids cannot diffuse.

What is the primary characteristic of gases compared to liquids?

• Gases have a fixed volume.
• Gases are incompressible.
• Gases can diffuse and fill any volume.
• Gases cannot take the shape of their container.

How does temperature affect the density of a substance?

• Density remains constant regardless of temperature.
• Density decreases as temperature increases for all substances.
• Density increases as temperature increases for all substances.
• Density can change as temperature changes.

Which of the following factors does NOT affect the density of a substance?

• Type of material
• Temperature
• Pressure
• Color of the substance

What happens to the density of a gas when pressure is applied?

• Density increases.
• Density decreases.
• Density remains the same.
• Density becomes incompressible.

What is the density of fresh water at 4° C?

• 1000 kg/m³
• 1 g/cm³
• 1 kg/liter
• All of the above

What is relative density?

• The density of a substance compared to air.
• The ratio of the density of a substance to the density of water at the same temperature.
• The density of a gas at standard temperature and pressure.
• The mass of a substance divided by its volume.

If a substance has a relative density less than 1, what can be inferred?

• It will sink in water.
• It will float in water.
• It has a higher density than water.
• It is incompressible.

Which of the following statements about liquids is true?

• Liquids are compressible.
• Liquids have a fixed volume but take the shape of their container.
• Liquids can diffuse into gases.
• Liquids have no intermolecular forces.

What happens to the density of a substance when its volume increases while mass remains constant?

• Density increases.
• Density decreases.
• Density remains the same.
• Density becomes zero.