Section 2: Thermal Energy

Heat flows from __ objects or locations to __ objects or locations.

• Cold to Warm

• Cold to Hot

• Warm to Hot

• Hot to Cold

What is the state where there is no heat flow because the two substances have the same temperature?

• termperature

• thermal equilibrium

• convection

• conduction

Thermal energy is the total _ and _ of a substance.

• thermal energy and potential energy

• kinetic energy and thermal energy

• kinetic energy and potential energy

• potential energy and gravitational energy

Which is a material that transfers heat easily?

• insulator

• convenction

• conductor

• conduction

Which is a material that does not conduct heat easily?

• conductor

• insulator

• insulation

• conduction

The movement of fluids in a circular pattern due to density differences caused by temperature change is what type of energy transfer?

• Convection

• Conduction

• Insulation

• Radiation

Heat flow resulting from direct contact between two objects is what type of energy transfer?

• Convection

• Conduction

• Insulation

• Radiation

The transfer of thermal energy by electromagnetic waves is what type of energy transfer?

• Convection

• Conduction

• Insulation

• Radiation

Which of the following has more thermal energy:

• 2 kg of water at 15 degrees Celsius

• 1 kg of water at 15 degrees Celsius

Why does 2kg of water at 15 degrees Celsius have more thermal energy?

• They have different kinetic energies

• There is a temperature difference

• Everything else is the same, and it has more mass

• They have different potential energies