Semester 1 Final Review

Front

What is the normal boiling point of water?

Back

100°C

Front

What happens to air pressure inside a sealed container as temperature decreases?

Back

The pressure decreases.

Front

Describe the arrangement of molecules in a solid phase.

Back

Molecules are closely packed together in a fixed position.

Front

In which regions does temperature increase in a heating curve?

Back

Regions A, C, and E.

Front

Why does a balloon filled with air shrink in cold weather?

Back

The air particles inside the balloon move slower and closer together.

Front

What is the definition of boiling point?

Back

The temperature at which a liquid turns into vapor.

Front

Explain the relationship between temperature and pressure in gases.

Back

As temperature increases, pressure increases if volume is constant.

Front

What is the effect of cooling on gas volume?

Back

The volume of gas decreases as it cools.

Front

Define kinetic energy in the context of molecular motion.

Back

Kinetic energy is the energy of motion; higher temperature means higher kinetic energy.

Front

What happens to the state of matter when heat is added?

Back

Matter can change from solid to liquid (melting) or liquid to gas (vaporization).