Unit 4 Test Review

Front

What is absolute zero?

Back

The temperature at which the molecules of a substance have zero kinetic energy.

Front

What are evaporation and boiling both types of?

Back

Vaporization.

Front

What happens to the temperature when the particles of an object move faster?

Back

The temperature goes up.

Front

What does the average speed of molecules determine in a substance?

Back

Temperature.

Front

What happens to heat when a metal cube at 70°C is immersed in water at 20°C?

Back

The metal cube loses heat while the water gains heat.

Front

Define kinetic energy.

Back

The energy that an object possesses due to its motion.

Front

What is the relationship between temperature and kinetic energy?

Back

As the temperature increases, the kinetic energy of the molecules increases.

Front

What is vaporization?

Back

The process of turning from liquid into vapor.

Front

What is the difference between evaporation and boiling?

Back

Evaporation occurs at the surface of a liquid at any temperature, while boiling occurs throughout the liquid at a specific temperature.

Front

What is the boiling point of water at sea level?

Back

100°C (212°F).