Hydrogen cells
A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction with oxygen or another oxidizing agent. There are six different types of fuel cells. The types include alkaline, phosphoric acid, molten carbonate, polymer electrolyte membrane, direct methanol, and solid oxide. Hydrogen fuel cells also have many benefits to the user. Hydrogen is the simplest element. An atom of hydrogen consists of only one proton and one electron. It's also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't occur naturally as a gas on the Earth. It's always combined with other elements. Hydrogen is high in energy, yet an engine that burns pure hydrogen produces almost no pollution. A fuel cell combines hydrogen and oxygen to produce electricity, heat, and water. Fuel cells are often compared to batteries. Both convert the energy produced by a chemical reaction into usable electric power. However, the fuel cell will produce electricity as long as fuel is supplied, never losing its charge.The energy efficiency of a fuel cell is generally between 40–60%, or up to 85% efficient.
Solar Panels
Solar cells are made of special materials called semiconductors such as silicon, which is currently used most commonly. Basically, when light strikes the cell, a certain portion of it is absorbed within the semiconductor material. This means that the energy of the absorbed light is transferred to the semiconductor. The energy knocks electrons loose, allowing them to flow freely. Solar cells also all have one or more electric field that acts to force electrons freed by light absorption to flow in a certain direction. This flow of electrons is a current, and by placing metal contacts on the top and bottom of the solar cell, we can draw that current off for external use, say, to power a calculator. This current, together with the cell's voltage, defines the power that the solar cell can produce. When light, in the form of photons, hits our solar cell, its energy breaks apart electron-hole pairs. Each photon with enough energy will normally free exactly one electron, resulting in a free hole as well. If this happens close enough to the electric field, or if free electron and free hole happen to wander into its range of influence, the field will send the electron to the N side and the hole to the P side. This causes further disruption of electrical neutrality, and if we provide an external current path, electrons will flow through the path to the P side to unite with holes that the electric field sent there, doing work for us along the way. The electron flow provides the current, and the cell's electric field causes a voltage. With both current and voltage, we have power, which is the product of the two.
Circuits
Parallel Circuits:A parallel circuit has more than one resistor and gets its name from having multiple paths to move along . Charges can move through any of several paths. If one of the items in the circuit is broken then no charge will move through that path, but other paths will continue to have charges flow through them. Parallel circuits are found in most household electrical wiring.The potential drops of each branch equals the potential rise of the source. Ohm's Law may be used in a parallel circuit as long as you remember that you can use the formula with either partial values or with total values but you can not mix parts and totals.
Series Circuits:A series circuit has more than one resistor and gets its name from only having one path for the charges to move along. Charges must move in series first going to one resistor then the next. If one of the items in the circuit is broken then no charge will move through the circuit because there is only one path. There is no alternative route.Ohm's Law may be used in a series circuit as long as you remember that you can use the formula with either partial values or with total values but you can not mix parts and totals.
Series Circuits:A series circuit has more than one resistor and gets its name from only having one path for the charges to move along. Charges must move in series first going to one resistor then the next. If one of the items in the circuit is broken then no charge will move through the circuit because there is only one path. There is no alternative route.Ohm's Law may be used in a series circuit as long as you remember that you can use the formula with either partial values or with total values but you can not mix parts and totals.
Picture of the Circuit and Car
Pictorial Representation
Reflection
I decided to build a car with treads because first period jacked all the good pieces, If that's not enough even after having first pick on all the good pieces they had to steal some off our car.(comes in to play later). After we had a general idea We started construction on the car. We we had to ensure that the treads were the same length so that it was even. after about 2 days of building we had the car functional and it was running smoothly but life is never easy. We discovered that some pieces were missing and our car would not stop veering to the right this caused us from winning and i was very sad. I discover that making the hydrogen cell and the solar panel were both the main source of power and that they would both power the motor. This is what caused our car to go very fast unlike the other cars. Overall liked the project and i wish for more like it to come.