Question 1

Which of the following best describes the relationship between mass, volume, and density?

Accepted Answer

Density is mass divided by volume: $$Density = \frac{Mass}{Volume}.$$

Question 2

A 100 g sample of an unknown metal displaces 187 cm$$^3 of $$water. What is the density of the metal?

Accepted Answer

$$0.534\ \mathrm{g/cm^3$}$$

Question 3

Which of the following is NOT a physical property of matter?

Accepted Answer

Ability to rust

Question 4

According to the Kinetic Molecular Theory, what happens to the molecules of a solid as it is heated?

Accepted Answer

The molecules move faster and farther apart.

Question 5

Which process describes the direct change from a solid to a gas?

Accepted Answer

Sublimation

Question 6

A student finds that a 50 g sample of a substance has a volume of 25 cm$$^3. $$What is the density of the substance?

Accepted Answer

$$2.0\ \mathrm{g/cm^3$}$$

Question 7

Which of the following best explains why ice floats on water?

Accepted Answer

Ice has a lower density than water.

Question 8

Which change of state requires the removal of heat from a substance?

Accepted Answer

Condensation

Question 9

Which of the following statements about gases is correct?

Accepted Answer

Gases are easily compressible.

Question 10

A sample of water is heated from 10°C to 110°C. Which phase changes occur during this process?

Accepted Answer

Boiling only

Question 11

Which of the following best describes deposition?

Accepted Answer

A gas changes directly to a solid.

Question 12

Which of the following is an example of a physical change?

Accepted Answer

Melting of ice

Question 13

If the temperature of a gas increases while the volume remains constant, what happens to the pressure?

Accepted Answer

The pressure increases.

Question 14

Which of the following best explains why liquids have a definite volume but no definite shape?

Accepted Answer

The molecules are close together but can move past each other.

Question 15

A 200 g block of ice at 0°C is placed in a room at 25°C. Which of the following best describes the changes that occur?

Accepted Answer

The ice will melt to liquid water.

Question 16

Which of the following is true about the energy changes during the melting of a solid?

Accepted Answer

Energy is absorbed by the solid.

Question 17

Which of the following best describes the arrangement of molecules in a solid?

Accepted Answer

Molecules are tightly packed in a fixed position.

Question 18

A sample of dry ice (solid CO$$_2) is $$left on a table at room temperature. What will happen to the dry ice?

Accepted Answer

It will sublimate directly to CO$$_2$$ gas.

Question 19

Which of the following is a correct statement about the compressibility of solids, liquids, and gases?

Accepted Answer

Gases are easily compressible, but solids and liquids are not.

Question 20

Which of the following best explains why adding heat to a solid can cause it to melt?

Accepted Answer

Heat causes the molecules to move faster and overcome their fixed positions.

Physical Properties and Change of Matter: Mass, Volume, Density, and States of Matter

Study Guide - Practice Questions