your hair stands straight and stiff when you comb it vigorously on a dry‚ cold day? Or how difficult it is to remove dust particles from your comb? Your hair and the comb become charged by rubbing. This stationary electric charge is described as static electricity. Activity 1. Rub a plastic sheet with flannel and then hold the plastic sheet near Styrofoam bits. What do you observe? From the observations made‚ you can conclude that rubbing produces static electricity on the rubbed objects. The two
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north to south. It has many different variations of names from the Chinese‚ sometimes reffered to instead as "Shamo" or as "Hanhai" which translates to endless sea. Today the Gobi desert is home to many different types of wildlife that inhabit its cold climate‚ unlike that of a typical desert. The Gobi Desert is even known for its fossils and being the very first desert to have found the remnants of an ancient dinosaur egg. Everyday the Gobi continues to grow larger in size which has become quite a concern
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Chapter 2 The History of the Atom It took many scientists and philosophers hundreds even thousands of years to come up with an accurate atomic theory. For nearly 2‚000 years science was unable to come up with experiments that were able to test and put forth the theories made up by Democritus which was a fifth century B.C. Greek philosopher. In 1803‚ John Dalton‚ who viewed the atom as a small solid sphere‚ and is credited for the developing of the first coherent atomic theory was now in the picture
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The Positive and Negative Effects of Video Games http://www.raisesmartkid.com/3-to-6-years-old/4-articles/34-the-good-and-bad-effects-of-video-games Is playing video games good or bad for you? It can be both. Video games are frowned upon by parents as time-wasters‚ and worse‚ some education experts think that these games corrupt the brain. Violent video games are easily blamed by the media and some experts as the reason why some young people become violent or commit extreme anti-social behavior
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are known as d-Block elements. The general electronic configuration of these elements is (n -1)d1-10 ns 1-2 d- Block elements are collectively known as Transition Elements because properties of these elements vary in between s-Block and p-Block elements. A transition element should have partially filled (n-1) d orbital. Group 12 elements i.e. Zn‚ Cd‚ Hg have completely filled (n-1) d-orbital in atomic & ionic state & thus these elements are considered as Typical Transition Elements
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1. What causes the lines to be produced in this way? The different electron energy levels caused in hydrogen cause these lines in the spectrum to be produced in this way because the wavelengths that are released when the electron move back to the ground state is specific and it varies accordingly. 2. Into which energy level are electrons dropping into to make these visible lines? The electrons are dropping back to the ground state which is the bottom most energy level to makes these visible lines
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common observed behavior – similar charges repel and opposite charges attract. The experiment went expected as there were no unusual observations recorded. In the first part‚ it was observed that when the plastic rod was rubbed it attracted the tissue bits. The explanation with this is‚ when the plastic rod was rubbed‚ it became electrically charged. Conduction happens when the tissue paper was rubbed into the plastic rod. The tissue paper transferred electrons to the plastic rod. The plastic is
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tourism in India In recent years tourism in India has shot up at lightening speed. India has succeeded in becoming the most preferred place amongst domestic and overseas traveler. Tourism exposes the international traveler to India’s diverse culture. According to some official estimates Indian tourism has surpassed global tourism as far as penetration of foreign tourists and revenue is concerned. As far as internal reasons are concerned‚ India tourism has progressed due to the rate of growth of Indian
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purpose of this lab is to examine the motion of an electron‚ when it encounters a constant magnetic and electric field. We will also observe when the electric field and magnetic field will cancel each other out. This will lead to the electron having no net force acting upon it. By adjusting the values for the magnetic and electric fields‚ we will be able to check the different paths the electron follows. From this data we will be able to calculate the charge-to-mass ratio. Then‚ using the accepted value
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ELECTRICAL SUBSTATION A substation is a part of an electrical generation‚transmission and distribution system. Substations transform voltage from high to low‚ or the reverse‚ or perform any of several other important functions. Electric power may flow through several substations between generating plant and consumer‚ and its voltage may change in several steps. Substations may be owned and operated by a transmission or generation electrical utility‚ or may be owned by a large industrial or commercial
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