Heat Flow (7.P.11.4)

Front

What is heat flow?

Back

Heat flow is the transfer of thermal energy from one object or substance to another due to a temperature difference.

Front

What is conduction?

Back

Conduction is the process of heat transfer through direct contact between materials, where faster-moving particles transfer energy to slower-moving particles.

Front

What is convection?

Back

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

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation, which can occur in a vacuum.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat energy required to raise the temperature of one gram of a substance by one degree Celsius.

Front

Why do metals feel colder than wood at the same temperature?

Back

Metals conduct heat away from the skin more quickly than wood, making them feel colder even if they are at the same temperature.

Front

What happens to particle movement when a substance is heated?

Back

The particles move more quickly as they gain energy when the temperature of the substance increases.

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 occurs during the process of freezing?

Back

During freezing, a substance loses thermal energy, causing its particles to slow down and arrange into a solid structure.

Front

What is boiling point?

Back

The boiling point is the temperature at which a liquid's vapor pressure equals the external pressure, causing it to change into vapor.