Liquids

Question 1

Which term best describes liquid behavior under pressure?

Revolt · Accepted Answer

incompressible

Question 2

Carla makes a small cardboard boat and floats it in a tub of water. When she adds a drop of dish soap behind the boat, the boat moves forward.Which statement best explains what happened?

Revolt · Accepted Answer

The soap reduced the surface tension behind the boat, causing both water molecules and the boat to be pulled forward.

Question 3

Valerie wants to examine the properties of a thick liquid but is finding it difficult to pour the liquid into a beaker. She needs to finish her investigation before the end of class. Which method will allow her to pour the liquid easily?

Revolt · Accepted Answer

applying heat to the liquid

Question 4

Why are liquids well suited for hydraulics?

Revolt · Accepted Answer

Liquids are incompressible.

Question 5

Which molecules would most likely cause a liquid to have the lowest viscosity?

Revolt · Accepted Answer

small, nonpolar molecules

Question 6

What happens when a solid is dissolved into a liquid?

Revolt · Accepted Answer

Solid particles become evenly dispersed among liquid particles.

Question 7

Which process most likely takes place when the kinetic energy of molecules overcomes the intermolecular forces?

Revolt · Accepted Answer

boiling

Question 8

Which term best describes the substances that cause oil and water molecules in salad dressing to interact and mix?

Revolt · Accepted Answer

surfactants

Question 9

What happens as a result of the kinetic energy of the particles in a liquid being comparable with the intermolecular attractions between the particles?

Revolt · Accepted Answer

The particles move enough that they are not fixed in place, and the liquid can flow.

Question 10

Melting can be best described as a process in which molecules

Revolt · Accepted Answer

gain enough kinetic energy to get past each other.

Liquids Answers

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