What kind of radiation? Remember, Beta radiation is particles (electrons)
and Alpha radiation is Helium nuclei.
Some radiation will transfer energy to particles ... which may speed them up,
it may heat them,
it may cause fluorescence.
When air is heated by radiation, the air molecules absorb the radiant energy and increase in kinetic energy, causing them to move more vigorously. This increased motion leads to expansion of the air, resulting in a rise in temperature.
The molecules in side move or spread apart
As the iron is heated, the kinetic energy of the molecules increases, causing them to vibrate more rapidly and over larger distances. This increased motion disrupts the ordered arrangement of the molecules, leading to expansion of the solid structure as the molecules move further apart.
Like all molecules, a molecule of H20 is in constant motion; 'hot' molecules move faster than 'cold' molecules. If the molecules move slowly enough the substance appears stationary to us (frozen water) and if they move quickly enough they will expand to fill their container (vapor or gas water.)
Water is highly cohesive. Its molecules tend to resist increases in their motion. When water is heated, some of the energy is used to disturb the hydrogen bonds between neighboring molecules.
Random Motion
new molecules starts to form
The main type of thermal energy transfer that happens when a gas is heated is convection. In convection, the heated gas molecules become less dense and rise, while cooler gas molecules sink, creating a circular motion that transfers heat throughout the gas.
the molecules will decrease in motion
they get exited and move faster than cold molecules
The liquid molecules are transformed in gas molecules.
The liquid molecules are transformed in gas molecules.
they get farther apart.
what happens to water molecules when they are heated
The magnitude of the vibration of its molecules gets increased.
As a result of WHAT?
When air is heated by radiation, the air molecules absorb the radiant energy and increase in kinetic energy, causing them to move more vigorously. This increased motion leads to expansion of the air, resulting in a rise in temperature.