2.2 Thermodynamics

Front

What happens to the kinetic energy of a substance when it melts?

Back

The kinetic energy increases.

Front

What is the type of heat transfer that travels through space in electromagnetic waves?

Back

Radiation.

Front

What will happen to the temperature of a glass of cold water over time?

Back

It will match the temperature of the surrounding environment.

Front

Describe the freedom of movement of molecules in a liquid that changes to a gas.

Back

Molecules move around each other, then away from each other.

Front

In heat transfer, from where to where does heat flow?

Back

Heat flows from the hotter substance to the colder substance.

Front

What is thermodynamics?

Back

Thermodynamics is the branch of physics that deals with heat, work, and the forms of energy.

Front

Define conduction in the context of heat transfer.

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat by the movement of fluids (liquids or gases).

Front

Explain the concept of thermal equilibrium.

Back

Thermal equilibrium is the state in which two objects in contact do not exchange heat, meaning they are at the same temperature.

Front

What is the difference between an endothermic and exothermic reaction?

Back

An endothermic reaction absorbs heat, while an exothermic reaction releases heat.