Thermal Energy Checkpoint

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What do molecules in a solid look like?

Back

In a solid, molecules are closely packed together in a fixed arrangement and vibrate in place, maintaining a definite shape and volume.

Front

What is a conductor?

Back

A conductor is a material that allows heat to flow through it easily, such as metals like copper and aluminum.

Front

What is radiation in terms of thermal energy?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, which can occur in a vacuum.

Front

How does heat transfer between objects of different temperatures?

Back

Heat moves from hotter objects to colder objects until thermal equilibrium is reached.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.

Front

What is the difference between conduction and convection?

Back

Conduction is the transfer of heat through direct contact between materials, while convection involves the movement of fluids.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, such as rubber, glass, or wood.

Front

What role does temperature play in heat transfer?

Back

Temperature is a measure of the average kinetic energy of particles; heat transfer occurs from areas of higher temperature to areas of lower temperature.

Front

What is the significance of specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius; it indicates how much energy a substance can store.