Fluids Review Quiz

When a substance is heated, its particles will move ____.

• slower

• faster

• randomly

• not at all

A fluid's resistance to flow is known as its ____.

• density

• viscosity

• temperature

• pressure

Pascal's Law states that when pressure is applied from an outside source to a contained fluid, the force is transferred throughout the fluid in ____.

• one direction

• all directions

• upward direction

• downward direction

What is the relationship between buoyancy and density? How do you know if an object will float?

• A) An object with higher density than water will float.

• B) An object with lower density than water will float.

• C) Density does not affect buoyancy.

• D) Only objects made of metal will float.

How does a ballast tank help control the depth of a submarine?

• A) By increasing the weight of the submarine.

• B) By changing the overall density of the submarine.

• C) By releasing air into the water.

• D) By using magnetic fields.

How are hydraulic and pneumatic systems similar and how are they different?

• A) Both use gases, but hydraulic systems use more pressure.

• B) Both use liquids, but pneumatic systems use more pressure.

• C) Both use pressurized fluids, but hydraulic systems use liquids and pneumatic systems use gases.

• D) Both use solids, but pneumatic systems use more pressure.

In fresh water, an ice cube floats with about nine tenths of its mass below the surface. Is this true for an iceberg in seawater?

• A) Yes, because seawater is less dense.

• B) No, because seawater is more dense.

• C) Yes, because seawater is more dense.

• D) No, because seawater is less dense.

The container and its contents weighed how much more than the container full of ethanol only?

• 15.8 g

• 10.5 g

• 2.35 g

• 10.5 g more

What is the final unit for the density of the object?

• g/mL

• g/cm³

• mL

• cm³

Fill in the blank: The volume of ethanol spilled out was equal to the volume of the ______.

• container

• object

• ethanol

• solution