Phase Changes

Phase Changes

Multiple Choice

7. All phase changes (changing states) requires energy to be added or taken away.

• True
• False

Multiple Select

What is the short hand for sublimation?

• solid to liquid

• liquid to gas

• solid to gas

• gas to solid

Multiple Choice

In an endothermic reaction, energy is _________.

• absorbed

• released

Multiple Choice

The temperature of a substance increases as___.

• the substance expands
• the average kinetic energy of its particles increases
• the substance's volume increases
• the substance's mass increases

Poll

Do you think you understand about phase changes?

• Yes they seem easy

• For the most part

• I get the idea that matter can change

• You had me lost on the word phase.

Multiple Choice

What is happening to the particles in the substance between points D and E?

• Melting

• Freezing

• Vaporizing

• Sublimating

Multiple Choice

What is happening to the particles in the substance between points A and B?

• Melting

• Freezing

• Speeding Up

• Slowing Down