Quarter 2 Exam Review Questions

BEFORE YOU BEGIN...take out your Unit 3B notes and your Unit 3B handouts!

the tendency of the particles in a substance to take up more space as the temperature of the substance increases

• thermal expansion

• fluid

• apparent density

Tags

NGSS.MS-PS1-4

any matter that flows when force is applied

• thermal expansion

• fluid

• apparent density

the total mass divided by the total volume of an object that is made up of more than one material (including air if the shape encloses air)

• thermal expansion

• fluid

• apparent density

Pure water and another substance are graphed above. If the line for A represents pure water, what can be said about the other substance (B)?

• Substance B is more dense than water (A) and will float on water.

• 1. Substance B is less dense than water (A) and will float on water.

• Substance B is more dense than water (A) and will sink in water.

• Substance B is less dense than water (A) and will sink in water.

How do the densities of hot air and cold air compare?

• Hot air is less dense than cold air because the particles are closer together in hot air.

• Hot air is more dense than cold air because the particles are closer together in hot air.

• Cold air is less dense than hot air because the particles are closer together in cold air.

• Cold air is more dense than hot air because the particles are closer together in cold air.

Tags

NGSS.MS-PS1-4

The density of a liquid is greater than the density of a gas because:

• gas particles are smaller than liquid particles.

• gas particles are larger than liquid particles.

• particles in a liquid are closer together than particles in a gas.

• particles in a gas are closer together than particles in a liquid.

In general, the solid phase of a substance is more dense than the liquid phase of the same substance. An exception to this is solid

• copper.

• water.

• solder.

• steel.

What is the density of carbon dioxide gas if 0.3 grams of CO₂ is in a 50-mL sealed container?

• 0.006 g/mL

• 167 g/mL

• 15 g/mL

• 0.3 g/mL

Which of the following fluid materials is most likely to float on water?

• oil

• honey

• milk

• corn syrup

How can a boat made of steel metal float on the surface of the ocean?

• Because the steel is hollow, the apparent density of the boat is less than the density of a block of steel.

• Because the steel is hollow, the apparent density of the boat is more than the density of a block of steel.

• The density of steel is less than the density of water no matter what shape the steel is made into.

• The density of steel is more than the density of water no matter what shape the steel is made into.