Chapter 7: Particulate Nature of Matter - Part 1

The table shows the structure of particles in four different substances.

Which one is a solid?

• A

• B

• C

• D

Which of the following descriptions of the particles of a solid and a liquid are CORRECT?

• A

• B

• C

• D

The particles of substance X are held rigidly in a fixed pattern. What else is TRUE about them?

I. They are in constant motion

II. They have very strong forces binding them

III. They have high energy

IV. They have low energy

• I, II, IV

• II, III

• I, II, III

• II, IV

Diagrams below illustrate the particles of 3 substances, iron, mercury and nitrogen, at room temperature.

Which of these diagrams illustrates the particles of these substances correctly?

• A

• B

• C

• D

Which of the following could be the substances P, Q and R?

• I

• II

• III

• IV

Which of the following substances has the weakest force between the particles?

• Sugar

• Hydrogen gas

• Water

• Sand

Put the following substances in order of increasing energy of their particles:

I. oxygen

II. salt

III. honey

• I, II, III

• II, I, III

• III, II, I

• II, III, I

Which of the following particles have very high energy levels and weak attractive forces?

• water particles

• copper particles

• oxygen particles

• iron particles

When we decrease the temperature of a gas, __________.

• the particles move further apart

• the bombardment between the particles become less

• the mass of the particles decrease

• the particles of the gas vibrate at a fixed position

What happens to the particles of a liquid during cooling?

• The particles gain energy and move closer to each other.

• The particles gain energy and move further apart from each other.

• The particles lose energy and move further apart from each other.

• The particles lose energy and move closer to each other.