Saturday, May 3, 2014
Project Green BlogPost
During our project for the science we worked on the project for physics and learning how to be sustainable and being able to use the amount of electricity and preserving it. We were in the process of working throughout our project and giving out a update of what has been happening and our situations in progress. It has been working well and our electricity bill has been changing by $1 because of the fact that we have PV in our household and it will allow us utilize energy and still be able to be sustainable. Throughout our progress using the ability to hold off electricity usage we still have saved money and usage in the kilo-watts have decreased. Throughout this progression i have also learned that being sustainable allows us to progress in the right direction. I feel that this project has taught us how to work towards that goal of just being there and working things out and going green.
Thursday, April 17, 2014
In actuality, the task of determining the complete shape of the entire medium during interference demands that the principle of superposition be applied for every point (or nearly every point) along the medium. To determine the precise shape of the medium at this given instant in time, the principle of superposition must be applied to several locations along the medium. A short cut involves measuring the displacement from equilibrium at a few strategic locations. Destructive interference is a type of interference that occurs at any location along the medium where the two interfering waves have a displacement in the opposite direction. For instance, when a sine pulse with a maximum displacement of +1 unit meets a sine pulse with a maximum displacement of -1 unit, destructive interference occurs. This is depicted in the diagram below. Constructive interference is a type of interference that occurs at any location along the medium where the two interfering waves have a displacement in the same direction. In this picture it helps differentiate the two different interferences and shows how the motion over time of a wave will occur and how it will create a different type per wave since all are different.
Waves
A wave can be described as a disturbance that travels through a medium from one location to another location. Consider a slinky wave as an example of a wave. When the slinky is stretched from end to end and is held at rest, it assumes a natural position known as the equilibrium or rest position. The coils of the slinky naturally assume this position, spaced equally far apart. To introduce a wave into the slinky, the first particle is displaced or moved from its equilibrium or rest position. The particle might be moved upwards or downwards, forwards or backwards; but once moved, it is returned to its original equilibrium or rest position. The act of moving the first coil of the slinky in a given direction and then returning it to its equilibrium position creates a disturbance in the slinky. We can then observe this disturbance moving through the slinky from one end to the other. If the first coil of the slinky is given a single back-and-forth vibration, then we call the observed motion of the disturbance through the slinky a slinky pulse. In this picture it just shows how wave motion works and how it coincides with what was discussed throughout the paragraph about waves in general and in relation to physics.
Sunday, March 9, 2014
Multimeter
A multimeter is an instrument designed to measure electric current, voltage, and resistance, over several ranges of value. A multimeter is also a combination of a multirange DC voltmeter, multirange AC voltmeter, multirange ammeter, and multirange ohmmeter. Although its common uses are to measure current, voltage, and resistance, it can also measure capacitance, conductance, decibels, duty cycle, frequency, inductance, and temperature. Common multimeters have an analogue meter and digital multimeter. Pointer type multi-purpose table is a header for core components of multi-function measurement instruments, measured values by headers pointer instructions read. Digital multimeters measurements by LCD screen directly in digital form display, read the convenient, some still contain voice prompt functions. Multimeters are public a header, set the voltmeter, ammeter and the ohmic table in one of the instrument. Multimeter dc current format is multi-range dc voltmeter. Headers to parallel closed-circuit type dividing resistor can enlarge its voltage range.
Sunday, March 2, 2014
Electricity Lab
In this project we had to create a lab that dealt with conserving or using less of the energy or prices given through our monthly bill. In my lab my personal goal was to lower my amount of kilowatt-hour usage, since i have PV i only have to pay a fee of $17.00. Given this fact i created a system of using less kilowatt-hours and being able to conserve and be more sustainable and efficient. This is of obvious concern because many people have bills reaching up to $500+ per month. In order for us to help conserve we have this project that will force us to not use as much energy as needed and to be sustainable. In this photo is a picture of my house. The reasoning is because this will be the experiment itself and i will conduct my conservation of usage of energy throughout the duration of this project.
Sunday, February 23, 2014
parallel and series circuit
In a series circuit, the current through each of the components is the same, and the voltage across the circuit is the sum of the voltages across each component. In a parallel circuit, the voltage across each of the components is the same, and the total current is the sum of the currents through each component. If two or more components are connected in parallel they have the same potential difference across their ends. The potential differences across the components are the same in magnitude, and they also have identical polarities. The same voltage is applicable to all circuit components connected in parallel. The total current is the sum of the currents through the individual components. The difference in households is that we run parallel circuits for the simple fact that it would allow us to operate objects with electricity with more functions of off and on, however if we were to run series it would only connect everything to one specific circuit and that would only allow one thing to be turned on one at a time not allowing constant multiples to be on at the same time. In this picture it shows two outlets being used, one is my lamp and the other is my alarm clock/dock. With the parallel circuits given to me it will allow both of them to function and keep going, instead if it were to be a series it would only allow either or to be operated on.
Sunday, February 16, 2014
OHMS LAW
For many conductors of electricity, the electric current which will flow through them is directly proportional to the voltage applied to them. When a microscope view is taken, it is found to depend upon the fact that the drift velocity of charges through the material is proportional to the electric field in the conductor. The ratio of voltage to current is called the resistance, and if the ratio is constant over a wide range of voltages, the material is said to be an "ohmic" material. The quantity work has to do with a force causing a displacement. Work has nothing to do with the amount of time that this force acts to cause the displacement. Sometimes, the work is done very quickly and other times the work is done rather slowly. The standard unit is a Watt for the measurement of Power. Both apply to real life simply due to the fact that Ohm's law and power are technically similar in essences to real life applications such as a oven, or a microwave. The units of watts are needed to figure certain amounts for heat and energy in itself. In this picture it is my oven and it works well with this topic because it matches the similar concepts of ohm's law and power in the oven itself. Also included is how the oven is applicable in real life and to put that into words, is simply as a family we all use the oven for everyday use when cooking specific foods that are meant to be in the oven only.
Sunday, February 9, 2014
Importance of Electricity
Electricity is very important because it enable us to use machines such as Television sets, ovens, air conditioners and fans which make our life easier. Electricity also enable us to see easily during the night and when in dark places. As we depend more and more on machines to do important work for us, we must provide energy for electronic machines to work. Not only machines, but people need it to warm their homes in the winter, us it to power their forms of entertainment such as TV sets, or use the light electricity provides to move easily in the dark and do things when the sun has gone down. Everything now in the world relies on electricity as the main source of energy and it will be improved from then on. In this picture it is a fan that gives source of air and technically a cooling source. It is only able to function simply if electricity is given to the unit itself. Unless manual energy through movements and such will cause it to operate.
Sunday, February 2, 2014
A capacitance is a property of an electric conductor, or set of conductors, that is measured by the amount of separated electric charge that can be stored on it per unit change in electrical potential. Capacitance also implies an associated storage of electrical energy. If electric charge is transferred between two initially uncharged conductors, both become equally charged, one positively, the other negatively, and a potential difference is established between them. The capacitance C is the ratio of the amount of charge q on either conductor to the potential difference V between the conductors, or simply C = q/V. A capacitor, also called a condenser, is thus essentially a sandwich of two plates of conducting material separated by an insulating material, or dielectric. Its primary function is to store electrical energy. Capacitors differ in the size and geometrical arrangement of the plates and in the kind of dielectric material used. Hence, they have such names as mica, paper, ceramic, air, and electrolytic capacitors. Their capacitance may be fixed or adjustable over a range of values for use in tuning circuits. In this picture I took it is a TV. The reason i chose to take a picture of this is because of the fact that capacitors are involved into these situations for the TV itself to even turn on and it very so relates to capacitance for the electric conductors to work and se
peration of the electrical charge
peration of the electrical charge
Sunday, January 26, 2014
Electric potential Energy
Electric potential can be defined as the capacity for doing work which arises from position or configuration. In the electrical case, a charge will exert a force on any other charge and potential energy arises from any collection of charges. For example, if a positive charge Q is fixed at some point in space, any other positive charge which is brought close to it will experience a repulsive force and will therefore have potential energy. When a unit of positive charge (proton) approaches a positive region of the molecule, the repulsive interaction results in an increasing positive potential energy. As a proton approaches a negative region an attractive interaction results in negative potential energy. In this picture it shows a doorknob and the electric potential that it will cause to anything with a different electron charge such as our hands when we open doorknobs we will get shocked and it will allow us to be with the same charge as the electron.
Monday, January 20, 2014
Electromagnetism
At the subatomic level, electromagnetism is defined as the force between electrically charged particles. It is considered one of the fundamental interactions of matter. Oscillating electrical charges result in electromagnetic waves. On a larger scale, electromagnetism is the creation of a magnetic field from the movement of electrical charges. It usually concerns the use of electric current to make electromagnets, which is called electrodynamics. Another effect is electromagnetic induction, which is using an electromagnet or changing magnetic field to induce an electric current. At the subatomic level, electromagnetism is related to the electromagnetic force that causes the attraction and repulsion of electrically charged particles. In this picture it shows the Van de Graaf generator that was in class, the function that we used for it in Physics is when we touched the generator it shocked us every time because of us not having the same electrons and so it transferred over. However we also had different electrons then the generator energy itself, in essence if we continued to press against it nothing would happen later because of the fact that we have shared equal electrons throughout each other.
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