Amplify Phase Change Chapter 2 and 3 Review

Front

What happens to the molecules of a solid when energy is added?

Back

The molecules move faster and begin to move around each other, leading to a phase change from solid to liquid.

Front

What is the effect of strong molecular attraction in a liquid when energy is removed?

Back

Substance A, with strong molecular attraction, can overcome the slower movement of its molecules, allowing it to change phase.

Front

What happens to the molecules of a liquid when energy is removed?

Back

The molecules move slower and begin to move in place, leading to a phase change from liquid to solid.

Front

What occurs to a substance's molecules when energy is transferred out and they are moving around each other?

Back

The molecules will move slower, resulting in a phase change to solid.

Front

What happens to a substance's molecules when energy is transferred out and they are moving away from each other?

Back

The molecules will move slower, resulting in a phase change to liquid.

Front

Define phase change.

Back

A phase change is the transformation of a substance from one state of matter to another, such as solid to liquid or liquid to gas.

Front

What are the three main states of matter?

Back

Solid, liquid, and gas.

Front

How does temperature affect molecular movement in solids?

Back

In solids, as temperature increases, the molecules vibrate faster and may eventually break free to become a liquid.

Front

What is molecular attraction?

Back

Molecular attraction refers to the forces that hold molecules together, which can be strong or weak depending on the substance.

Front

What happens to molecular movement during melting?

Back

During melting, the molecules in a solid gain energy, move faster, and begin to slide past one another, forming a liquid.