FMS Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of all the particles in a substance.

Front

How does temperature relate to thermal energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance, while thermal energy is the total kinetic energy.

Front

Can an object with a higher temperature have less thermal energy than a more massive object with a lower temperature?

Back

Yes, because thermal energy depends on both temperature and mass.

Front

What direction does thermal energy flow?

Back

Thermal energy always flows from warmer substances to cooler substances.

Front

What happens to thermal energy transfer between two substances?

Back

There is a net flow of thermal energy until both substances reach the same temperature.

Front

Which has more thermal energy: a cup of hot cocoa or a large bucket of cold water?

Back

The large bucket of cold water has more thermal energy due to its greater mass, despite being at a lower temperature.

Front

What is the relationship between mass and thermal energy?

Back

The greater the mass of an object, the more thermal energy it can contain at a given temperature.

Front

What is the definition of kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Front

How does thermal energy affect the state of matter?

Back

Increased thermal energy can cause a substance to change from solid to liquid (melting) or from liquid to gas (evaporation).

Front

What is the principle of conservation of energy in thermal systems?

Back

Energy cannot be created or destroyed; it can only be transferred or transformed.