Unit 5: Physical States of Matter

Which state of matter has the particles with the least amount of intermolecular attraction?

• A) Solid
• B) Liquid
• C) Gas
• D) Plasma
• Answer: C) Gas

The transition from solid to gas without passing through the liquid phase is called:

• A) Sublimation
• B) Deposition
• C) Melting
• D) Freezing
• Answer: A) Sublimation

What effect does increasing the temperature have on a liquid’s vapor pressure?

• A) Vapor pressure decreases
• B) Vapor pressure increases
• C) Vapor pressure remains the same
• D) Vapor pressure fluctuates
• Answer: B) Vapor pressure increases

Which state of matter is characterized by particles that are not organized in any specific pattern?

• A) Solid
• B) Liquid
• C) Gas
• D) Plasma
• Answer: B) Liquid

In which state of matter do particles move in random and rapid motion, filling any container?

• A) Solid
• B) Liquid
• C) Gas
• D) Plasma
• Answer: C) Gas

The process where a gas turns into a solid is known as:

• A) Freezing
• B) Deposition
• C) Melting
• D) Sublimation
• Answer: B) Deposition

Which of the following states of matter has the highest density?

• A) Gas
• B) Plasma
• C) Liquid
• D) Solid
• Answer: D) Solid

What happens to the volume of a liquid when its temperature is increased?

• A) Volume decreases
• B) Volume remains the same
• C) Volume increases
• D) Volume fluctuates
• Answer: C) Volume increases

The process of a liquid turning into a gas at its surface is called:

• A) Condensation
• B) Boiling
• C) Evaporation
• D) Freezing
• Answer: C) Evaporation

Which of the following best describes the particles in a plasma state?

• A) They are close together and in a fixed arrangement.
• B) They are moving randomly and have high energy.
• C) They are moving slowly and are closely packed.
• D) They are loosely packed and have low energy.
• Answer: B) They are moving randomly and have high energy.

Which of the following describes the temperature at which a substance changes from solid to liquid? –

A) Freezing point

B) Boiling point

C) Melting point

D) Condensation point

Answer: C) Melting point