Thermal Energy

The moving particles that make up an object have _____ energy.

• decreasing
• increasing
• kinetic
• potential

_____ is a measure of the average kinetic energy of all the particles that make up an object.

• Density
• Conduction
• Radiation
• Temperature

If the particles that make up an object begin to move quickly, their average kinetic energy _____ and the object's temperature _____.

• increases, falls
• increases, rises
• decreases, rises
• decreases, falls

Thermal energy is the _____ of the particles in a system.

• average kinetic energy
• temperature
• total energy
• potential energy

_____ is the thermal energy that is transformed from a material with a higher temperature to one with a lower temperature.

• Heat
• Work
• Kinetic energy
• Potential energy

The transfer of energy through matter by the direct contact of particles is called _____.

• conduction
• confluence
• convection
• radiation

Which is the most effective thermal conductor?

• gas
• liquid
• plasma
• solid

Any material that flows is a _____.

• current
• fluid
• gas
• liquid

_____ is the transfer of energy in the form of electromagnetic waves.

• Conduction
• Convection
• Radiation
• Refraction

A(n) _____ is a material that does not allow thermal energy to be transferred through it easily.

• thermal conductor
• fluid
• thermal insulator
• current