Chapter 2 Phase Change (Amplify)

Front

What happens to gas particles in a tire when the temperature drops?

Back

The gas particles move slowly, causing the tire pressure to drop because they are not pressing against the walls of the tire.

Front

What is the relationship between kinetic energy and the movement of molecules?

Back

When kinetic energy increases, molecules move faster.

Front

What happens to the kinetic energy of a substance when it melts?

Back

The kinetic energy increases.

Front

Do molecules move in a solid?

Back

Yes, molecules are always in motion, even in a solid.

Front

What is a phase in terms of matter?

Back

A noticeably different form or state of the same substance.

Front

What occurs to the temperature of a substance when it changes from solid to liquid?

Back

The temperature increases as the substance absorbs heat.

Front

What is the effect of temperature on gas pressure?

Back

As temperature increases, gas pressure also increases if the volume is constant.

Front

What happens to the arrangement of molecules during melting?

Back

Molecules become less organized and move more freely.

Front

What is the definition of kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion.

Front

What is the process of a liquid turning into a gas called?

Back

Vaporization.