Phase changes quiz

1. Phase change going from a liquid to a solid...

• melting
• freezing
• condensation

2. Phase change going from a solid to a liquid...

• melting
• freezing
• condensation

3. Phase change shown in the picture...

• freezing
• condensation
• vaporization

4. All phase changes (changes in state) require energy to be added or taken away.

• true
• false

5. When an ice cube melts, it

• absorbs the heat of its surroundings
• gives off its coolness to its surroundings

6. Which temperature is colder?

• melting point of ice
• freezing point of water
• both temperatures are the same

7. When thermal energy is decreased in a liquid, what change in state is occurring?

• melting
• freezing
• vaporizing

8. What phase change is being shown, in the dry ice sample?

• vaporizing
• condensing
• sublimation

9. Wetness on the outside of a glass of ice water is caused by this

• vaporization
• condensation
• sublimation

10. What are the two types of vaporization?

• boiling and evaporation
• evaporation and emancipation
• sublimation and deposition