quiz

Changes of State

1. What is the process by which a solid transforms directly into gas?

  • A) Melting
  • B) Freezing
  • C) Sublimation
  • D) Evaporation
C) Sublimation. Explanation

2. What is the process called when a gas changes directly into a solid?

  • A) Deposition
  • B) Freezing
  • C) Condensation
  • D) Sublimation
A) Deposition Explanation

3. Which is an example of ionization in nature?

  • A) Water freezing into ice
  • B) Lightning
  • C) Melting of metal
  • D) Photosynthesis
B) Lightning Explanation

4. When does the phenomenon of superheating occur?

  • A) When a liquid is heated above its boiling point without actually boiling
  • B) When a solid is heated above its melting point
  • C) When a liquid reaches its freezing point and begins to solidify
  • D) When a gas cools and condenses into a liquid
A) When a liquid is heated above its boiling point without actually boiling Explanation

5. What is the term for the temperature at which a gas will condense into a liquid?

  • A) Melting point
  • B) Boiling point
  • C) Dew point
  • D) Freezing point
C) Dew point Explanation

Quick Links