Electric Charge And The Electric Field

Students in an AP Physics lab perform an electrostatics experiment involving two charged spheres suspended

Some inconsistencies may have been a slightly different amount of paint during each experiment and the speed of washing your hands would be different each time you wash them. The amount of soap could have been a little different each time, along with the water pressure.

* The battery applies a voltage to the plates, charging one plate positive and the other plate negative. Alpha particles constantly released by the americium knock electrons off of the atoms in the air, ionizing the oxygen and nitrogen atoms in the chamber. The positively-charged oxygen and nitrogen atoms are attracted to the negative plate and the electrons are attracted to the

Difficulties in the experiment arose when inverting the buret and completely submerging it into the beaker of water. This is a likely place for error because

To detect electric charge scientists use an electroscope. See figure 1. An electroscope consists of a metal rod with a knob and two thin metal leaves at the bottom. When the electroscope has no charge, the metal leaves hang straight down. When a charged object touches the knob the metals leaves repel each other.

10) If the second positive charge were moved away from the first Positive charge, would this involve positive or negative work.

question he got wrong he would get electrocuted. The voltage would then be raised for the next

In the last article "Conducting Solutions" the main purpose is that it explains how different materials conduct electricity. In this passage, they describe an experiment with sugar and water. It says that when sugar is dissolved in water, the solution does not conduct electricity because there are no ions in the solution. It also describes experiments with vinegar and ammonia. It says that they work well as a mixture because the ammonia reacts with the acid in vinegar and hey form a lot of

-The hair becomes positively charged and the comb becomes negatively charged; since, the electrons went from your hair to the comb and the more electrons there is makes an object more negative.

Then I attached the black clip to the coin and the red clip to the copper strip. I then placed each item in the copper sulfate solution and attached the opposite end of the black clip to the negative side and the red clip to the positive side of the battery. Then I waited ten minutes to observe the effects on the items. I then re-cleaned both items and followed the above steps, except the clips. I placed the red clip on the negative side and the black clip on the positive side of the battery. I performed this experiment with the coin and copper strip first and then re-performed the same experiment with the key and copper

The purpose of this experiment is to figure out weather or not electricity could affect the pH of a solution. Adding the Epsom salt to the solution and pencil led as the conductors of the electricity and with a salt bridge connecting the two solutions in the middle. Chemicial reaction will form if the solution with Epsom salt reacts to the electricity with both positive and negative charges. To extend the experiment using both terminals of the battery, and figure out the effect of both positive and negative charges had on the pH was also apart of this lab.

In 1752 Franklin devised another experiment to test if lighting has an electrical charge. He flied a kite carrying a pointed wire in a thunderstorm and attempted to test his theory that atmospheric lightning is an electrical phenomenon similar to the spark produced by an electrical frictional machine (Bruno 406). To

Contrary to prevailing conception of dynamism; the field of power distribution is slow to evolve and even slower to alter itself. Thalus of Miletus stumbled onto static electricity by rubbing fur on amber circa 600 BC (Timeline). It would be a twenty-two hundred years before English scientist William Gilbert coined the term electricus in his 1600 A.D. text De Magnete (Etymology). "Electricus came from the classical Latin electrum, amber, and perhaps from the Greek ἤλεκτρον (elektron), amber."(Simpson) It would take an additional 250 years when in the 1800 's an explosion of knowledge erupted from employing the scientific method of recording procedures to develop repeatable results and saw proliferation of electrical laws and principles. In 1873 Belgian engineer Zenobe Gramme, who developed the DC generator, discovered entirely by accident that a DC generator

Originally electricity and magnetism were thought of as two separate forces. This view changed, however, with the publication of James Clerk Maxwell's 1873Treatise on Electricity and Magnetism in which the interactions of positive and negative charges were shown to be regulated by one force. There are four main effects resulting from these interactions, all of which have been clearly demonstrated by experiments:

In each experimental run, the volume of electrolyte used is always kept to be 150cm3. This is measured using a 250cm3 measuring cylinder