Physics Lesson

Conductors and insulators

2011-09-27T16:59:00.003-07:00

Conductor is a material easy to conduct an electrical charge, sedankan insulator is a substance that is difficult to conduct electrical charges. It has been stated earlier that at some electrons around this is easy to move and move.

In materials that are conductors of electrons on each atom are not tied tightly so that the electrons can move within the atom. Free electrons is what causes the material easy to experience or drain conductor of electric charge. Almost all types of metals such as silver, aluminum and copper are good konsuktor. Almost all non-metallic materials except the carbon is very difficult even at all does not conduct electrical charges.

Electroscope

2011-09-27T16:54:00.001-07:00

The instrument used to determine the existence of electric charge on a body is the electroscope. Examples of gold leaf electroscope. if an electrically charged object touches the metal cap, a metal plate and gold leaf becomes electrically charged.

Bbecause the electric charge on a metal plate and gold leaf type, both will experience repel. So the gold leaf which was originally going to be afraid to deviate upward. The greater simpaangan gold leaf the greater the electrical charge of an object.

Coulomb's Law

2011-09-27T16:49:00.001-07:00

The relationship between power and force of the electric charge was first investigated by the physicist Charles Coulomb French nationality. In experiments using Coulomb's torsion balance. Balls A and B are electrically charged ball type. If the ball is brought near the ball B A which lies on the tip of the balance sheet, the ball B will be rejected A.
This will menyebabka torsional balance sheet and position the ball B changed from its original position.

Electric Charge

2011-09-27T16:45:00.000-07:00

There are two types of electric charge, ie a positive electric charge and negative electric charge. Objects that lack an electron has a positive electrical charge and objects that have excess electrons a negative electrical charge. Large electric charge depending on the amount of deficiency or excess of electrons sutau objects.

The first scientist to successfully measure the elementary charge of an electron is MIlikan. According to the elementary charge of an electron at 1,5.10 ^ -11 119 C

Teori Atom

2011-09-27T16:40:00.001-07:00

Atom is the smallest part of an element that can not be subdivided by ordinary chemical reactions. Atoms consist of electrons, protons and neutrons. Atomic mass and positive charge accumulated in the nucleus (the nucleus). In erdapat nucleus of protons and neutrons. Both are core particles (nucleons).

Positive electrically charged protons, neutrons are not electrically charged, while the negative electrically charged electrons and moving around the atomic nucleus.

physics quiz

2011-09-24T00:27:00.000-07:00

physics quiz is much preferred, because the physics quiz used to practice quizzes in physics lessons. Physics lesson that uses physics quizzes are very popular, especially online quiz, so that all students can work directly and quickly. Almost all websites provide physics quiz. Physics quiz websites that provide great demand not only among students but also in demand by teachers. Facilities in physics is also very easy quiz created by the programmer.

physics tutor online

2011-09-24T00:17:00.000-07:00

Physics tutor online is much preferred, because it has a lot of physics online tutor who provides an online tutor for physics was already popular in the community. In this world are many who use the website to learn online. Studying physics do require a lot of time and concentration because a lot of logic, theories and formulas that must be mastered. But what happens is that education in our country Indonesia too crammed with students of diverse subjects in one time and repeatedly be learned.

So it is natural that students with academic ability normal difficulty mastering physics. because if you want to master the physics have to sacrifice our time to learn another lesson. only a genius student who can master the physics and other subjects in a short time. for normal students can do is learn the tricks and secret shortcuts in working on the physics exam. so the essence of physics lesson in itself can not be controlled. pretty sad is not it?

Physical Chemistry of Foods

2011-09-23T19:18:00.000-07:00

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ENERGY ELECTRICITY GENERATOR

2011-09-23T19:15:00.000-07:00

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Monk physical Chemistry Understanding Our Chemical World

2011-09-23T19:13:00.000-07:00

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Electricity and Magnetism [Halliday-Resnick-Walker]

2011-09-23T19:04:00.000-07:00

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Electricity and Magnetism 1

2011-09-23T19:02:00.000-07:00

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Electricity and Electronics Fundamentals

2011-09-23T18:58:00.000-07:00

Ebook Electricity and Electronics Fundamentals. If you want to download please klik link in bellow.

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Solar panel installation

2011-09-23T06:49:00.000-07:00

Whether we can make your own generator at home? The answer is yes. Solar cells are very practical electrical panel. From year to year we will run out of energy cells, therefore we must create alternative energy. Solar panel / solar cell requires sunlight. Place the solar panel / solar cell at the position where not obstructed by objects throughout the morning until the afternoon. Generating electricity with solar panel / solar cell produces direct current DC electricity.
For higher efficiency, use DC lamps such as LED lights.
Installing a new cable for direct current DC to the following example: LED-based lighting (Light Emiting Diode), CCTV cameras, wifi (wireless fideliity).

how do solar panels working

2011-09-23T06:37:00.000-07:00

How is the working principle of solar cells convert solar energy into electrical energy. Solar cells that we see is a set of modules photovoltaic cells (photo = light, voltaic = electricity) is a well-crafted, neat and packaged in the form of a frame. Tues photvoltaic will convert solar energy directly into electricity.
Photovoltaic cells are made of special semiconductor materials are now widely used and referred to as silicon. When the light on silicon cells, the light will be absorbed by these cells, this means that the absorbed light energy has been transferred to a silicon semiconductor material. The energy stored in this semiconductor will result in loose and flowing electrons in semiconductors. All of these photovoltaic cells have electric fields that force electrons that escape because of light absorption to flow in a certain direction. This flow of electrons is electric current, by putting the terminal contacts on the top and bottom of these photovoltaic cells will be seen and measured the current flowing so it can be used to supply external devices. This above is a basic change in the solar energy into electricity by a semiconductor silicon. This is the working principle of solar cells.

Resistor

2011-09-08T06:00:00.000-07:00

Resistors are electronic components that are always used in every electronic circuit because it functions as a regulator of electric currents. With an electric resistor can be distributed according to need.
In electronic circuits the resistor is denoted by the number "R", while the icon is like this:. There are several types of resistors in the market include: Carbon Resistor, wirewound, and Metal Films. There is also a resistor that can be changed resistance value, among others: Potentiometer and trimpot. There was also a resistor that changes its resistance when exposed to light called LDR (Light Dependent Resistor) and resistors of the resistance value changes depending on the ambient temperature called NTC (Negative Thermal Resistance)

transformer

2011-09-08T05:52:00.000-07:00

Transformer is a tool to raise or lower electric voltage alternating current (AC). transformer consists of two coils of wire wrapped around the iron core.
The primary coil is a coil which is connected to a voltage source, and the secondary coil is a coil which is connected to an electric plane.
There are two types of transformer are:
1. Step up transformers, are useful to raise the voltage (Ns> Np)
2. Step-down transformer, is useful to lower the voltage (Ns <Np)

So it can be formulated:
Np / Ns = Vp / Vs = Is / Ip

Description:
Vp = input voltage
Vs = voltage out
Np = number of primary windings
Ns = Number of secondary windings
Ip = Primary Current
Is = secondary current

Used cars used cars

2011-09-02T22:58:00.000-07:00

used cars are much sought after among the young and the elderly. For people whose economy is limited, choose to buy used cars than new cars, used cars because it is highly preferred. Bekaspun car if sold again only has a few disadvantages. therefore, today's used car used car is preferable from the middle to upper classes, from young to old, from poor to rich.

make money in the blog

2011-08-30T15:29:00.001-07:00

I have tricks to make money in the blogs. Why the blog to use make money, because we must make money and enjoy.

science games for kids

2011-08-19T00:19:00.001-07:00

Science games for kids is very popular. Each child must have loved the game. Especially for the children but the world of gaming is not just for kids anymore, the parents are still many who are crazy about the game.
They are willing to spend their long hours and spend substantial funds for their gaming hobby. Developments in computer games is currently very rapid. Starting from the default windows games offline to online games such as solitaire as rife today as Point BL * NK, DOT * and much more. Even social networks like facebook features gaming facilities so that the user should be entertained as are poker.Game itself is derived from the English language that have meaning game. Games can also be interpreted as an arena for decision and action players. There are targets to be achieved players

Science Experiments for Kids

2011-08-19T00:07:00.000-07:00

Inspired by the blog, finally the last days of vacation is filled with children about the Magnet Science Project. Incidentally near the house there is Science Graha, a store that sells a variety of teaching aids for science experiments.
It turns out Magnet bars are not as cheap as a refrigerator magnet for the patch.but, already overdo on-schedule project nih, ga would want the project must go on.

First, prepare the main ingredient used to:

We can set up some other object in a container, the object that is small and contains materials of different manufacture, such as nail clippers are made of metal, small rubber balls, coins made from aluminum, plastic comb, etc.. Then, prepare the other two containers, one for putting things that can pull the magnet, and the other for objects that can not be withdrawn magnet :

Because my children are 3, then I'm for the task for each of them. For Ahmad, the task put all objects on the bar magnet, while Aliyyah, his duty to make reports and draw a conclusion from the above experimental results. As this form of report.

Learning Strategies for Students

2011-08-18T23:45:00.000-07:00

Learning strategies are the ways that will be used by teachers to choose strategies and learning activities that will be used throughout the learning process. The selection is done by considering the circumstances, learning resources, needs and characteristics of learners faced in order to achieve certain learning goals.

In the process of learning known as some of the terms have similar meanings, so often people get confused to differentiate. These terms are: (1) learning approach, (2) learning strategies, (3) teaching methods, (4) techniques of learning, (5) learning tactics, and (6) learning model. The following will set out these terms, hoping to give kejelasaan about the use of the term.Learning approach can be interpreted as a point of departure or point of view on learning, which refers to the view of the occurrence of a process that is still very common in nature, in which enclose, menginsiprasi, strengthen, and the underlying learning methods with particular theoretical coverage. Judging from its approach, there are two types of learning approaches, namely: (1) learning-oriented approach or a student-centered (student centered approach) and (2) learning-oriented approach or teacher-centered (teacher centered approach). Teacher-centered approach (teacher-centered approaches) lowers the learning strategy (direct instruction), teaching deductive or expository learning. While the learning approach is student-centered learning strategies reduce discovery and inquiry and inductive learning strategies.
Kemp argued that the learning strategy is a learning activity to do teachers and students so that learning objectives can be achieved effectively and efficiently. Judging from its strategy, the learning can be grouped into two sections as well, namely: (1) exposition, discovery learning, and (2) individual-learning group (Rowntree). In the exposition strategies, teaching materials presented to students in its finished form and students are required to master the material. As quoted by the Vienna, Roy Killen call learning strategies (direct instruction). Why say a direct learning strategy? Because of this strategy, the subject matter is presented simply to students; students are not required to process them. The obligation of students is to master it fully. Thus, the strategy serves as an expository teacher conveys information. Unlike the discovery strategy. In this strategy lesson material sought and found by the students through various activities, so the task of teachers more as facilitators and mentors for their students. Because it is so this strategy is often also called indirect learning strategies. Individual learning strategies undertaken by students independently. Speed, slowness, and the success of student learning is largely determined by the ability of individual students concerned. Lessons and materials designed for learning how to learn it themselves. An example of this learning strategy is learning through the modules, or learning languages through audio tapes.In contrast to the strategy of individual learning, group study conducted in teams. A group of students taught by a teacher or teachers. Study groups could form in the large group learning or learning classical; or can students learn in small groups kind of buzz groups. The strategy group did not pay attention to individual learning pace. Each individual is treated the same. Therefore, learning can occur in a group of students who have high ability will be hampered by students who have mediocre abilities; otherwise students who have less ability to feel displaced by the students who have high ability.Judging from the way of presenting and processing means, learning strategies can also be distinguished between deductive learning strategies and inductive learning strategies.Deductive learning strategies learning strategies are carried out by studying the concepts first and then look for conclusions and illustrations; or material starting the lessons learned from the things that are abstract, then slowly toward the concrete. This strategy is also called learning strategies from general to specific.Conversely, the inductive strategy, the material learned this strategy starts from the things atu concrete examples and then slowly the students are faced with complex and difficult material. This strategy is often called the learning of specific strategies to the public.Learning is essentially a process of adding new information and skills. When we think of information and what capabilities should be owned by students, then at that time also we should think what strategy should be done so that all that can be achieved effectively and efficiently. It's very important to understand, because what should be achieved will determine how to achieve it.
Before determining the learning strategies that can be used, there are several considerations that must be considered:a. Considerations related to the objectives to be achieved.The questions can be asked is:1) Are the learning objectives to be achieved with regard to aspects of cognitive, affective, or psychomotor?2) How does the complexity of the learning objectives to be achieved, whether high level or low level?3) Is it to achieve that goal requires academic skills?b. Considerations related to materials or learning materials:1) Is the subject matter in the form of facts, concepts, laws, or theory?2) Is it to learn the instructional material that requires certain prerequisites or not?3) Are there books to learn the source of the material?c. Consideration from the point of students:1) Does the learning strategy according to the maturity level of students?2) Did the learning strategies that fit with their interests, talents, and the condition of the students?3) Is it appropriate learning strategies with learning styles of students?d. Other considerations:1) Is to achieve the goal just enough with one strategy alone?2) Is the strategy that we set is considered the only strategy that can be used?3) Does the strategy have a value of effectiveness and efficiency?
From the questions above, is a material consideration in determining the strategy to be applied. Suppose that to achieve the goals associated with cognitive aspects, will have different strategies with efforts to achieve the goals relating to aspects of the affective or psychomotor aspects, etc..
learning methods can be interpreted as the means used to implement the plans that are constructed in the form of real and practical activities to achieve learning goals. There are several methods of learning that can be used to implement learning strategies, including:

(1) lecture;lectures conducted by intended as a trigger of participatory activities (brainstorming, discussions, assignments, case studies, etc.). In addition, the lecture is meant here is that tends to lecture interactive, which involves students throughexistence of feedback or comparison with the opinions and experiencesstudents. Media support is used, such as junk materials (handouts),served with the OHP transparency, presentation materials that displaywith the LCD, the writings on the card and meta plan / plano paper, etc..
(2) demonstration;Demonstration is a method used to membelajarkan participantsby telling and demonstrating the stepsworkmanship something. The demonstration is a practice that was exhibited toparticipants. Therefore, the demonstration can be divided into two objectives: demonstrationprocess to understand step by step, and demonstration results for theshow or demonstrate the results of a proses.Biasanya, afterdemonstration followed by practice by the participants themselves. As a result,Participants will gain experience to learn directly after viewing,do, and feel themselves. The purpose of the demonstration that combinedthe practice is making changes to the shutter skills.(3) discussion;
(4) simulation, (5) laboratory, (6) field experience; (7) brainstorming; (8) debates, (9) symposium

solar panels for your home

2011-08-18T20:18:00.000-07:00

Solar panels for your home

Energy that never runs out is the sun. One of the alternative energy to convert light energy into electrical energy. Why? because of electrical energy are now using fuel, and fuel derived from the earth will be exhausted. One alternative is that solar energy with solar cells. Solar cells are already widely sold in several countries, even developed countries also have to sell this tool.

Why choose an alternative solar cell?
There are several reasons to support why we chose the solar cell. One is that the solar cell is an energy that will never run out. Although some say that one day the sun will run out of energy. Although the statement is true, then solar energy will run out after several hundred years.

House for Sale

2011-08-17T16:55:00.000-07:00

If you want to sell a home, how easy. The most effective way to sell a house is to advertise. lots of places to house ads, for example in google or in some classifieds website, either free or paid. If you want to intend to find homes for sale please visit rumah.com or other provider sites in selling homes.

Being a change agent

2011-08-13T16:25:00.000-07:00

Water can turn into ice if the ice can be frozen and otherwise turn into water again when heated. Water and ice have the same constituent components, but have a different form. Water can also evaporate, this means that water can turn into gas. Water can exist in three states of matter are: solid (ice), liquid (water) and gases (water vapor).

In everyday life can be seen that the ice can change into water. If heated continues, water will boil and turn into water vapor. Substance can be transformed from one form to another form. Changes in states of matter is accompanied by changes in the nature of the substance.
Changes in the nature of substances by changing its form can be divided into:
1. Melt (melt): Changes in the form of solid to liquid. Examples: Ice cubes are melted, heated chocolate.
2. Freeze: Change in the form of liquids into solids. For example: Water is put into fresser turn into ice cubes.
3. Yawning: Changes in the form of liquid into gas. For example: Water is boiled continuously, for long runs out because the water turns into water vapor.
4. Condense: Changes in gas to liquid form. For example: The water vapor in the air into water droplets on the glass.
5. Sublimes: Changes in the form of solids into gas.For example: Moth balls are placed in the cupboard gets smaller over time the shape and then run out (turn into vapor / gas)
6. Crystallized (deposed): Changes in gas form into solids. For example: The process of purification of iodine