Thermal Energy : A Substance Or System

The study of science is Physics. Physics means the natural science which involves the study of things made up atoms or matter, and along with related concepts such as energy and force. The experiment is Physics because we are using heat from the sun, and transferring the heat to the oven. So heat or thermal energy is the measure of the amount of energy that is contained in a material. Heat depends on how much of the material, which would be sunlight, you have: if you have twice the amount then normal of whatever you are testing, then you have to double the amount of heat you have. “Temperature is a measure of the ability of a substance, or more generally of any living or nonliving subject, to move the energy made of heat to another living or nonliving subject.” “But we need to remember that light slows down has it goes farther from the sun, and bends toward the normal and has a shorter wavelength when it enters a higher value medium (A substance that makes it possible for the energy to move to one location to another)”. “ Also a light wave is transverse (they can be polarized).”

Energy can be transformed but cannot be got rid of. There are lots of forms of energy but chemical energy is the most common form of energy. Energy is a chemical bond that combines atoms or molecules with each other. When the new bond is formed between to atoms the energy helps the formation. The energy that helps is normally heat energy but can also be light or electrical. When the bond is broken atoms get realised as does the energy in the bond.

Heat: The amount of energy associated with the movement of atoms and molecules in matter.

Usually an increase in temperature in a chemical reaction means that there will be an increase in the reaction rate of the reactants. Temperature is a measure of the kinetic energy of a system. If temperature is the measure of the kinetic energy of a system, higher temperature implies a higher average kinetic energy of molecules and more collisions per time. This would happen because when the temperature is increased and the reactants will start moving faster and will collide more than before with other reactants and will start forming products.

Energy is a concept.� Most definitions of the word energy fail to provide its exact meaning when applied to scientific matters.� In science the word energy is a concept that expresses two measurable properties, heat and work.� Here is the relationship of energy, heat and work:

The heat capacity per unit mass of a body, called specific heat capacity or more simply specific heat, is used to more directly compare the heat capacity of substances. Pure water has high specific heat capacity that is exactly 1 calorie per gram, whereas other common substances have much lower specific heats. The reason is because it takes more energy to increase the kinetic energy of hydrogen-bonded water molecules than it does for substances in which the dominant intermolecular interaction is the much weaker van der Waals force. As a result, water gains or loses much more heat than other common substances while undergoing an equal temperature change.

Thermal energy is the total energy of the moving particles in a solid. Thermal energy from a hot stove is transferred to a metal pot and causes the water particles to move faster increasing the temperature of the water Changes of state: Changes from one state to a gas, liquid or solid. Example, you leave ice cream out in a hot summer day and it melts. Gravitational energy:

There are four basic components for thermal energy (heat): 1. All matter is made up of tiny particles called atoms. These can only be seen with special microscopes. 2. The atoms are always moving – they all have kinetic energy. 3. The particles have space between them. Different states of matter have different amounts of space. 4. Adding heat (energy) to matter makes the particles move more quickly. Since faster moving things have more kinetic energy, adding heat increases the energy of the particle. 5. Cooling it down decreases the amount of kinetic energy and slows the movement down.

We know that there are different types of energies that we know of which are: chemical, light, sound, heat and electrical. When looking at our bodies, we know that we need energy to help our bodies to function and the energy that we use in our body is chemical. The reason for this is that the energy help circulate the blood through in our bodies as it carries the oxygen to help with breathing and for the growth and repair for new of damaged cells in our bodies. Also the energy helps to transfer information in out nerve cell to help us respond the environment about us and this is all a part of Energy Metabolism.

The temperature is the measure of the average kinetic energy of the reacting particles. The increase in temperature also changes the distribution of molecular kinetic energies.

8. Thermoregulation is keeping the temperature of an object in this case the human body stable or in a controlled temperature.

Radiation The combined process of emission, transmission, and absorption of heat energy traveling through electromagnetic waves from an area of higher heat energy to an area of lower heat energy. A good example is the transfer of solar heat from the sun to the earth. The heat energy is moved through waves from an area of higher temperature (sun) to an area of lower temperature (earth).

Chemists refer to the energy stored in a substance as the heat content or enthalpy of the substance. The heat of reaction is determined by the difference in the enthalpy between the reactants and products.

Heat is a form of energy that is transferred between two substances at different temperatures. The flow of the energy is from the object of higher temperature to the object of lower temperature. The heat is measured in units of energy, usually calories or joules. Temperature on the other hand, is how cold or hot an object is. The temperature is the average kinetic energy per molecule of a substance. This is measured in degrees on the Celsius or Fahrenheit or in Kelvins.

There are no definite forms of energy since possibilities of new forms of energy are limitless. However, the various forms of energy in physical science include thermal, chemical, electric, radiant, nuclear, magnetic, elastic, sound, mechanical, and luminous energies (Foland 13). Thermal energy or heat is the energy in random motion of particles. Chemical energy refers to the energy from the aggregate of positioning of electrons and protons. Radiant energy is the energy of electromagnetic radiation while nuclear energy and electric potential energy is energy emanating from nuclear fission and electrical processes respectively. Sound is a form of mechanical vibration, which propagates through any mechanical medium. It is closely related to the ability of the human ear to perceive noise.