ABSTRACT This handy‚ pocket-size mobile transmission detector or sniffer can sense the presence of an activated mobile cell phone from a distance of one
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BUILD AN EARTHQUAKE DETECTOR If you live in an earthquake zone‚ this vibration sensor can save your property or your life. If not‚ it can be used as a bur- or many of us that live in a seismically active region‚ an earthquake is a very real and constant threat. Even moderate earthquakes that are not strong enough to hurt anyone can cause a significant amount of damage to the contents of your house if you are not prepared. Although earthquake prediction has made great strides over the
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Electric Fields Lab Abstract: In this lab we will study the equipotential lines in an electric field in order to study the structure of the electric lines of force. We will plot the position of electric field lines in a given electric field using both a manual method and a computer software program. There is an electric field in any region where there is a force on an electric charge at rest. It is convenient to represent an electric field
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Smoke Detectors A smoke detector is a device that detects smoke and prevents fire. Smoke detectors were used in many houses in North America and it is important safety devices for homes. Smoke detectors are cheap and it gives alarm of any warning when it rise a high temperature that was produced by a fire this is because smoke detectors can detect the combustion gases from a small flame. In the article‚ a woman resident of the Silverpuff apartment were seriously injure of a fire because
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Electric Field & Forces Sample Problems 1. What is the resultant force on the center charge below? Ans: 0.028 N‚ left q1= +4 C q2= -5 C q3= +6 C d1 to 2= 2 m d2 to 3= 4 m 2. What is the resultant force on the -8 C charge below? Ans: 20.04 N‚ 97.94 q1= +6 C q2 = +10 C q3 = -8 C d1 to 2 = 30 cm d2 to 3 = 20 cm 3. What is the resultant force on the +4 C charge below? Ans: 18.8 N‚ 264.5 q1= +4 C q2 = +6
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[pic] Intro Turn a calculator into a metal detector I recently discovered a really cool method in using a few household items to make a HomeMade Metal Detector! Heres how to make your own! Heres a link to the video : http://www.youtube.com/watch?v=_G5HzeIl9cY [pic] Step 1 What you need. All you need for this project is‚ an: AM Radio ‚ some tape ‚ and a small calculator. [pic] Step 2 Let’s Begin Begin by turning the AM radio on. Tune it to the high end
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have Metal Detectors? Have you ever felt violated‚ disrespected and dishonored to the point of no return? Many students around the world feel such a way every day. According to a 2002 National School Board Association report‚ 10.1 percent of school districts nationwide implement the use of metal detectors. Are metal detectors even effective? Why should students be forced to cooperate with a violation of their rights? High Schools around the world should not employ the use of metal detectors at all
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A polygraph is an instrument that simultaneously records changes in physiological processes such as heartbeat‚ blood pressure‚ respiration and electrical resistance (galvanic skin response or GSR). The polygraph is used as a lie detector by police departments‚ the FBI‚ the CIA‚ federal and state governments‚ and numerous private agencies. The underlying theory of the polygraph is that when people lie they also get measurably nervous about lying. The heartbeat increases‚ blood pressure goes up‚ breathing
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Lab #1 Electric Field Plotting Wilmer Suarez – 109592501 Eric Correia - 110698980 Lab section 01 TA: Sonali Gera Date performed: 09/12/2016 Date submitted: 09/14/2016 Introduction The aim of this experiment was to improve our understanding of the model of an Electric Field and Electric Potential. This was done by examining the locations between multiple electrodes connected to a power source of DC electricity. Finding the lines of equal potential difference for two different 2-dimesioanl
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Name Jonathan Durichek (RODP) Electric Fields Go to http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey and click on Run Now. 1. You rub balloons in your hair and then hang them like in the picture below. Explain why you think they move apart and what might affect how far apart they get. As I rub the balloons in my hair‚ I am picking up positive charges from my hair‚ which are electrons. The static charge produced will remain active on the balloons
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