Thermal Energy Concepts

Front

Thermal Energy is defined as…

Back

The total kinetic energy of particles in a substance.

Front

The movement of thermal energy from a warmer object to a cooler object is called

Back

Heat

Front

More heat is present in an iceberg than in a cup of hot tea due to the larger mass of the iceberg.

Back

Heat is a measure of the total energy of all the molecules in a substance, so even though the temperature of the iceberg is lower, the total energy is greater due to its size.

Front

As molecules move faster in an object, thermal energy AND temperature increase.

Back

True

Front

Fill in the blank: Thermal Energy is the sum of the all of the energy of molecules, and temperature is the average _______ _______ of molecules.

Back

Kinetic energy

Front

An object's mass affects its thermal energy because more mass means more particles, which can store more thermal energy.

Back

More mass leads to more thermal energy storage.

Front

The average kinetic energy of the hot washcloth will decrease as it loses heat to the surroundings.

Back

This occurs due to the transfer of thermal energy from the hot washcloth to the cooler environment.

Front

Thermal energy in a cold washcloth

Back

The thermal energy will increase as the washcloth absorbs heat from the warmer room.

Front

Conduction is the transfer of heat energy through direct contact.

Back

True. Conduction requires two things to be touching to transfer energy.