Understanding Thermal Energy Transfer

What is thermal energy?

• The total kinetic energy of particles

• The potential energy of particles

• The chemical energy in food

• The energy stored in batteries.

If the kinetic energy of the matter increases, the __________ energy also increases.

• potential

• thermal

• chemical

• nuclear

What is the definition of 'thermal energy'?

• The total kinetic energy of particles in matter

• A group of interacting elements

• Movement of energy from one system to another

• The process of heat transfer by direct contact.

In conduction, heat transfers from particle to particle when they are in ______.

• indirect contact

• direct contact

• different states

• the same state

What is the process called when heat is transferred through touch?

• Radiation

• Conduction

• Convection

• Insulation

Which material is the best conductor of heat?

• Metal Spoon

• Wood Spoon

• Silicon Spoon

Which material is the best insulator of heat?

• Metal Spoon

• Wood Spoon

What is convection?

• The transfer of heat through direct contact

• The transfer of heat through the movement of fluids such as air and water

• The transfer of heat through empty space

• The transfer of heat through solid materials.

Thermal Energy moves from high heat/high energy towards lower heat/lower energy.

• False

• True

What is the process called when thermal energy is transferred in solids, liquids, and gases when two substances of different temperatures touch?

• Convection

• Conduction

• Radiation

• Insulation