Thermal Equilibrium TEK 7.8A & 7.8B

Front

What is Convection?

Back

The transfer of thermal energy in a liquid or gas where the warmer substance rises and the cooler substance sinks, forming a current.

Front

What is Thermal Equilibrium?

Back

The condition where two substances in physical contact exchange no heat energy and are at the same temperature.

Front

Why does water get cold when ice is added?

Back

The heat from the water moves into the ice, causing the water to cool.

Front

In which direction does heat travel?

Back

Heat always travels from hot to cold objects.

Front

From where to where does energy transfer occur?

Back

Energy will always be transferred from the hotter sample to the colder sample.

Front

What is Thermal Energy?

Back

The total kinetic energy of particles in a substance, which determines its temperature.

Front

What is the difference between Conduction and Convection?

Back

Conduction is the transfer of heat through direct contact, while convection is the transfer of heat through the movement of fluids.

Front

What is Radiation?

Back

The transfer of energy through electromagnetic waves, such as sunlight.

Front

What happens to the particles in a substance when it is heated?

Back

The particles gain energy, move faster, and usually spread apart.

Front

What is a Heat Source?

Back

An object or substance that provides heat energy, such as a stove or the sun.