and molecules are affected by Heat:

When heated to a substance, molecules and atoms oscillate faster. If the atom oscillates faster, the space between atoms widens. Particle movement and spacing determine the physical state of the material. The end result of increasing molecular motion is that the object expands to occupy more space.

However, the quality of the object does not change. As heat is applied, solids, liquids and gases expands. When heat leaves all substances, the molecules vibrate more slowly. As atoms get closer and closer, the material shrinks. Again, the quality has not changed

Solid: Sidewalks, bridges, telephone lines, railroad tracks and many others are expanding on hot summer days. When they lose their fever they shrink

In the figure on the left, there are workers who are trying to reconnect two rails that are separated due to extreme cold. To solve this problem, the worker ignited the oil entry rope next to the truck. Fire heat will expand the truck so that they can reconnect again

Liquid: Liquid swells when heated and shrinks when cooled. Think about mercury in the thermometer. However, when the ice freezes it expands. Since water molecules lose heat, there is the possibility of vibrations becoming less and forming geometric patterns occupying more space. Remember, density = mass / volume. As the amount of ice increases, ice density decreases and ice rises.

Gas: Gas expands when heated and contracts when cooled. For example, if the balloon remains in a hot car, the balloon will inflate. It will be smaller when put in the refrigerator

Common misunderstandings: It is difficult for students to understand that molecules are constantly moving in all material states. As they can see the flow of water, many students accept the fact that molecules move in liquid water. However, these students have trouble trusting that the molecules in the ice are moving. However, the molecule is always moving, even in matter like ice, the movement of matter is invisible.

• When discussing heat, it is important to note that heat refers to how molecules of a material move (ie, do they move faster or move slower?) The faster the molecule moves, the more objects And the heat of the material becomes strong, the movement of the molecule slows, the heat of the object and material weakens.

Thermophysics is a study of fever. Thermal energy or thermal energy is the energy of a substance or system in the movement or vibration of that molecule. The faster the molecules in a substance move, the more they generate heat. Temperature is the average kinetic energy of a molecule in a substance. Even though the larger glass contains more total heat, the size of the water may have the same temperature. Thermophysics includes thermodynamics, statistical mechanics and kinetic theory

It transfers energy through substances such as heat and electric charge. In heat conduction, energy is transferred from molecules to molecules by direct contact, and the molecules themselves do not necessarily change position, they only oscillate more or less. In conduction, energy is transferred by electron or ion motion. Please compare convection. See also radiation. Careful observation: Heat is a type of energy that appears in the movement of molecules, atoms, and elementary particles. Thermal energy is transferred by conduction, convection, or radiation. As faster atoms and molecules collide with slower atoms and molecules adjacent to each other, the heat of conduction propagates through the material and passes some kinetic energy to them. This is the way teaspoons protruding from the cup of hot tea eventually get hot, even if they are not in direct contact with hot tea.

Conduction is the mechanism of heat transfer through a solid material. Conduction as a process represents the exchange of the kinetic energy of a molecule in a collision. In collision of molecules, kinetic energy is exchanged, whereby faster molecules with higher kinetic energy and higher heat provide some heat to slower molecules with lower thermal levels. Convection is an indirect heat transfer mechanism. Depending on the solid and fluid temperature, one will give (warm) and the other (cold) will receive heat. More fluid moves, more convection