Energy LT6 SA

Front

What happens to the average distance between molecules during the phase change from liquid to gas?

Back

The average distance between molecules increases.

Front

What occurs to particles when they are heated?

Back

Particles speed up.

Front

Why might Amy's dolls not warm up when wrapped in blankets?

Back

The blankets she uses are probably poor conductors.

Front

What type of heat transfer occurs through electromagnetic waves?

Back

Radiation.

Front

How is convection best described?

Back

The movement of gas or liquid in which warmer parts move up and the colder parts move down.

Front

What is conduction?

Back

The transfer of heat through objects that are touching.

Front

What is the definition of thermal energy?

Back

The total kinetic energy of particles in a substance.

Front

What is an insulator?

Back

A material that does not conduct heat well.

Front

What is the difference between heat and temperature?

Back

Heat is the energy transferred between substances, while temperature is a measure of the average kinetic energy of particles.

Front

What is the process of evaporation?

Back

The process by which molecules at the surface of a liquid gain enough energy to enter the gas phase.