Solid State Physics

Matter was created slightly after the big bang. Basically its like this, the whole universe was made of of a ball of pure force. It was a combination of gravity, electromagnetism, strong and weak nuclear energy. Then it blew up. As it spread out gravity and electromagnetism combined to form the tiny little particles that make up atoms (protons, neutrons, electrons, weird things like beta particles and whatnot) So that's it. I'm not 100% sure I'm completely right about that, but, that's pretty close anyway.

the particles are so compact in a solid that they don't move, and theres usually more of them depending on what youre comparing the object to.

the particles are so compact in a solid that they don't move, and theres usually more of them depending on what youre comparing the object to.

The Particles in solid matter are tightly packed together and usually have some type of pattern.

Pascal (Pa) is the SI unit for pressure and is equal to one Newton per square meter (N/m^2). To calculate pressure in Pascal, divide the force (in Newtons) by the area (in square meters) over which the force is applied. Mathematically, pressure (Pa) = force (N) / area (m^2).

Conductors allow electricity to pass through them easily and insulators don't let electricity pass through easily. Some examples of conductors are most metals and some examples of insulators are wood, rubber, and plastic.

Photocell consists of two special pieces of silicon joined together. Pure silicon is neaturally charged but if small amount of an impurity such as phosphurus is added, ther are more free electron which make this a better conductor than pure silicon. This is known as n-type(negative) silicon. If a diffrent impurity, such as boron, is added there is an absence of free elactron. The absence of an elactron is known as a hole and the silicon is knpwn as p-type silicon. When these two types of silicon are placed together it is called a p-n junction. An electric field is created between the two layers. Sunlight is made up of a tiny packets of energy called photons. When photons are absorbed the energy causes electron to become free. They move to the negetive layer and leave the junction to flow in an external curcuit.

Under temperature, the SI base unit is the Kelvin (K), which is used to measure temperature in the International System of Units (SI).

The gravitational force between two objects is directly proportional to the mass of the objects. The greater the mass of the objects, the stronger the gravitational force between them. Additionally, the gravitational force between two objects is inversely proportional to the square of the distance between their centers. As the distance between objects increases, the gravitational force between them decreases.

are two solids that are mostly the same but crystaline is in a pattern that repeats its self were as amorphous does not so they are both solids for ex. if i said the pattern abcabcabc....(infinite) the pattern would just repeat itself over and over but, amorphous would be abc but wuoldnt repeat itself.

Tensional forces typically cause objects to stretch or elongate.

The electron is the particle most involved with quantum theory. Its behavior and properties are governed by quantum mechanics, which describes the behavior of very small particles like electrons.

The chemical formula for copper (II) oxide is CuO. In this compound, copper is in the +2 oxidation state and oxygen is in the -2 oxidation state.

The speed of sound at 12000 meters above sea level is approximately 295 meters per second. Sound travels faster in colder temperatures and lower pressures, which are characteristics of higher altitudes.

To make a model, first define the purpose and scope of the model. Then gather relevant data or information, choose an appropriate modeling technique, build the model using software or tools, validate the model with real-world data, and interpret the results to draw meaningful insights or predictions. Finally, document the model creation process and share the findings with stakeholders.

Hydrogen bonds cause water to expand when it freezes. As water cools and freezes, the hydrogen bonds between water molecules form a crystalline structure with a more open arrangement than in its liquid state, causing it to expand and become less dense.

Assuming that you are using the Oxygen-Acetylene cutting process; both, depending at what stage/phase of the cutting process you are in. What we encounter is a gas flow differential problem. With the cutting torch flame properly adjusted (the acetylene valve opened to the point where the un-mixed acetylene flame is burning without producing any smoke but still in contact with the cutting tip of the torch, the oxygen valve is slowly opened until you have adjusted the flame to a neutral quality or setting. Press the cutting oxygen lever; typically the flame will become slightly carburizing ("feathers" will appear at the ends of the pre-heat flames) this phenomonom occurs because of the drop in line pressure due to the high flow of oxygen through the cutting tube or orifice. With the oxygen lever remaining depressed, readjust the flame to a neutral setting. This will cause the flame to become slightly oxidizing when the cutting lever is released; since an oxidizing flame burns slightly hotter than a neutral flame the pre-heat of the metal that is being cut is faster. When the metal is at the proper pre-heat or kindling temperature (1600 F for pure iron - various steel alloys will be slightly different; beginning to turn bright red is a good indicator) depress the cutting oxygen lever, the flame will revert to "neutral" and the cut can then begin. Weld. Prof.

0.00000645in/in/deg F is the coefficient of expansion for steel. so if you had a 12" plate, that was heated up 30°f you would get "0.00000645 * 12 * 30 = 0.002322" (12" + 0.002322") would be the new length at the increased temperature.

W on the periodic table. the element with the highest melting/boiling point is tungsten.

Counting the popped kernels in an experiment to determine if the popping of popcorn is affected by storage temperature is an example of quantitative data collection. By quantifying the number of popped kernels, researchers can analyze the results statistically to draw conclusions about the relationship between storage temperature and popping rate.

A person, donkey plants, trees etc. are examples of living matter because they have life. If you talk about these matter you will have to mention oxygen and carbon dioxide.

Heat energy causes all matter to expand, a reason for this strange occurrence is that when a particular substance receives heat whether it be through conduction, convection or radiation the atoms inside the substance become more energised therefor needing more space to move, they push the outside boundaries making the substance expand. If the substance receives an exceeding amount of heat energy it will change states of matter.

I hope this valubale information comes of use.