Electromagnetic radiation Essays & Research Papers

Best Electromagnetic radiation Essays

  • Electromagnetic Radiation - 7946 Words
    INTRODUCTION Radiation, flow of atomic and subatomic particles and of waves, such as those that characterize heat rays, light rays, and X rays. All matter is constantly bombarded with radiation of both types from cosmic and terrestrial sources. This article delineates the properties and behaviour of radiation and the matter with which it interacts and describes how energy is transferred from radiation to its surroundings. Considerable attention is devoted to the consequences of such an...
    7,946 Words | 22 Pages
  • Electromagnetic Radiation and Infrared Waves
    Republic of the Philippines DEPARTMENT OF EDUCATION REGION IV-A CALABARZON Division of Batangas City Batangas City Third Periodical Test in SCIENCE I I. MULTIPLE CHOICE: Choose the letter of the best answer. 1. Mechanical waves transport energy from one place to another through ___. a. Alternately vibrating particles of the medium b. Particles travelling with a wave c. Vibrating particles and travelling particles d. None of the above 2. In a transverse wave,...
    815 Words | 5 Pages
  • Electromagnetic Radiation and Electron - 1154 Words
    Nietkalieva Dinara IS113k Lab 1: Radio and Light Waves Virtual Lab 1) How is the radiating electric field (or electromagnetic signal) produced when radio stations broadcast? Include a description of what is producing the signal as well as the reasoning behind how this could produce a signal. We know that electromagnetic radiation is produced by accelerating charges. In the radio transmitter, electrons oscillate up and down and are thus accelerating. An electron will exert a force on...
    1,154 Words | 4 Pages
  • Electromagnetic radiation & plastics properties
    Electromagnetic radiation Electromagnetic radiation (EM radiation or EMR) is one of the fundamental phenomena of electromagnetism, propagating and traveling through space via photon wave particles, carrying radiant energy. In a vacuum, it propagates at a characteristic speed, the speed of light, normally in straight lines. EMR is emitted and absorbed by charged particles. As an electromagnetic wave, it has both electric and magnetic field components, which oscillate in a fixed relationship to...
    2,134 Words | 9 Pages
  • All Electromagnetic radiation Essays

  • Electromagnetic Spectrum and Infrared Radiation
    1. Wavelength of short ultraviolet radiation is: A. 700-1500 mµ B. 1600-12,000 mµ C. 0.1-3 mm D. 180-290 mµ 2. Wavelength of long ultraviolet radiation is: A. 700-1500 mµ B. 290-400 mµ C. 180-290 mµ D. 0.1-3 mm 3. What ultraviolet wavelength will produce reticuloendothelial stimulation? A. 2600-2700 Å B. 2700-3000 Å C. 2900-4000 Å D. 2400-2500 Å 4. The magnitude of radiation flux at any particular point of the skin depends upon the: A. Cross-sectional diameter of...
    1,444 Words | 9 Pages
  • Studying Electromagnetic Radiation - 731 Words
    Studying Electromagnetic Radiation A frequently asked question is “What is the relationship between wavelength, frequency, and energy?” Well simply The greater the energy the larger the frequency and the shorter the wavelength. Given the relationship between wavelength and frequency — the higher the frequency, the shorter the wavelength — it follows that short wavelengths are more energetic than long wavelengths. The wavelength and frequency of light are closely related. The higher the...
    731 Words | 2 Pages
  • Electromagnetic Radiation and Valence Electrons
    Introductory Chemistry, 2e (Tro) Chapter 9 – Electrons in Atoms and the Periodic Table True/False Questions 1) When the elements are arranged in order of increasing number of protons, certain sets of properties recur periodically. 5) A particle of light is called a packet. 9) Ultraviolet light produces suntans and sunburns. 13) Electrons behave like particles and we can describe their exact paths. 17) The ground state is when an electron in an atom is excited into the lowest possible vacant...
    517 Words | 2 Pages
  • Photosynthesis: Electromagnetic Radiation and Silver Beet
    Light Absorption by Photosynthetic Pigments in Silver Beet Abstract The aim of the experiment was to determine the absorption of differing wavelengths of light by individual pigments in the vegetable silver beet. Pigments were extracted from silver beet leaves and separated into chlorophyll a, chlorophyll b, and carotene via chromatographs. Chlorophylls were then separated and an absorption spectra created using results obtained from a spectrophotometer. It was clear there were two distinct...
    1,152 Words | 4 Pages
  • Electromagnetic - 2325 Words
    What is electromagnetic radiation? Electromagnetic energy is a term used to describe all the different kinds of energies released into space by stars such as the Sun. These kinds of energies include some that you will recognize and some that will sound strange. They include: * Radio Waves * TV waves * Radar waves * Heat (infrared radiation) * Light * Ultraviolet Light (This is what causes Sunburns) * X-rays (Just like the kind you get at the doctor's office) * Short...
    2,325 Words | 7 Pages
  • Research Work on the Effect of Electromagnetic Radiation on Health
    International Journal of Medical and Biological Sciences 6 2012 Estimation of Electromagnetic Radiation from Base Station Antenna R. K. Singh Abstract—In the present paper, an observation of electromagnetic radiation from base station antennas installed for various communication purposes has been done on the basis of equivalent isotropically radiated power (EIRP) calculations. For this purpose, a typical wireless communication site has been selected where GSM, CDMA, 3G/UMTS and WiMAX antennas...
    4,223 Words | 15 Pages
  • Electromagnetic Waves - 954 Words
    Miyuki Murakami 10D SHOULD WE USE ELECTROMAGNETIC WAVES FOR MEDICAL PURPOSES? In terms of definition, Electromagnetic Wave is a “non-particulate radiation (radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge)”. Thus, in simpler words, electromagnetic is a transmission of energy, caused by the oscillation and of electric and magnetic fields. The word electromagnetic wave or electromagnetic radiation may...
    954 Words | 3 Pages
  • Electromagnetic Spectrum - 393 Words
    The Figure 6-18 in my text book was an example of an electromagnetic spectrum, which is all wavelengths of light both seen and unseen (Trefil & Hazen, 2010). The display of the electromagnetic spectrum showed gamma rays, X-rays, ultraviolet light, infrared, visible light, microwave, radio waves, as well as a visible spectrum wavelength (Trefil & Hazen, 2010). The diagram shows at what frequency and wavelength each wave moves and what it allows us to see, hear, and feel with visible...
    393 Words | 1 Page
  • Electromagnetic Spectrum - 2258 Words
    The electromagnetic spectrum is made up of six different types of waves. Radio waves, Microwaves, Infrared waves, Visible light, Ultraviolet light, X-rays and Gamma rays. The radio waves are used to transmit radio and television signals. The infrared waves are used to tell temperature of areas. Visible light is all the colors that we can see. Ultraviolet light can help things grow but to much can cause diseases such as skin cancer. X-rays are used as a tool to find broken bones or...
    2,258 Words | 7 Pages
  • The Electromagnetic Spectrum - 286 Words
    wavelength — the distance between the crests of the waves — or its frequency — the number of crests that pass by in a given amount of time.The higher the energy of the radiation, the shorter its wavelength and the higher its frequency will be. Blue light, for example, has a higher energy and therefore a higher frequency and shorter wavelength than red light Flame tests are used to identify the presence of a relatively small number of metal ions in a compound. Not all metal ions give flame...
    286 Words | 1 Page
  • The Electromagnetic Spectrum - 641 Words
    The Electromagnetic Spectrum Introduction In the electromagnetic spectrum there are 7 main types of radiation – Radio Waves, Microwaves, Infra-red, Visible Light, Ultra-violet, X-rays and Gamma Rays. These waves do not transfer matter – the energy they transfer depends on the wavelength of waves. This is why waves have different effects (like the intensities of Ultra-violet radiation compared to that of Visible Light – although next to each other on the spectrum, UV light can damage your...
    641 Words | 3 Pages
  • The Electromagnetic Spectrum - 277 Words
    Unit 3 assignment 1 SC1130 The diagram of the electromagnetic spectrum in figure 6-18, shows various properties across the range of frequencies and wavelength. Electromagnetic spectrum the figures at the bottom of the diagram represents the approximate scale of wavelengths. It starts from the smallest to the largest. Which is the Atomic nucleus, atom, virus, bacteria, pinhead, fingernail, humans, skyscrapers, and mount Everest. The figure also shows the wavelength and the frequency scale. The...
    277 Words | 1 Page
  • Electromagnetic Spectrum - 280 Words
    The Electro Magnetic Spectrum Fontana Chemistry period 3 December 3, 2012 James Clerk Maxwell discovered the electromagnetic spectrum in 1862. The electromagnetic spectrum is a map of all the types of light that can be identified. It classifies different types of light by wavelength to show how much energy the wave has. The more energy the wave has the shorter the wavelength and the less energy a waves has the longer the wavelength. Not all light is in the visible spectrum. There are...
    280 Words | 1 Page
  • Electromagnetic spectrum - 877 Words
    Radios and microwaves both use radiation from the electromagnetic spectrum Visible light can be split into a spectrum of colours .. from red through the rainbow colours to violet but visible light is just a small part of the whole electromagnetic spectrum All the different types of electromagnetic waves travel at the same speed through a vacum .. the waves can be orderd by wave length remebered that waves with the shortest wave lengths have the highest frequency and the most energy and the...
    877 Words | 3 Pages
  • Electromagnetic Waves - 922 Words
    Electromagnetic Waves Although you might not know it you’re constantly surrounded by thousands of electromagnetic waves every day. Sunlight and x-rays are only two types of electromagnetic waves, other types are: radio wave, infrared rays, ultra-violet rays and gamma rays Nature of an electromagnetic wave Electric and magnetic fields are not made up of matter. An electromagnetic wave consists of an electric and magnetic field and doesn’t need a medium to exist. They are the regions...
    922 Words | 4 Pages
  • Electromagnetic Spectrum - 1938 Words
    Science Essay: We use the electromagnetic spectrum every day it’s the microwave you use to heat your food and the cell phones you use to text! Those are part of the Electromagnetic Spectrum. The light that our eyes can see is also part of the electromagnetic spectrum. This visible part of the electromagnetic spectrum consists of the colors that we see in a rainbow - from reds and oranges, through blues and purples!! The electromagnetic spectrum has 7 parts to it, radio waves, microwaves,...
    1,938 Words | 5 Pages
  • Electromagnetics Application - 2806 Words
    Laser Communicator Reniel Joseph E. Bautista, Harris W. Guinomla, Jose Paulo Piloton and Khevin Anne A. Francisco, EECE, MSU-IIT Abstract –This project involves discovering how wireless connections occur in the atmosphere using a beam of laser. The project, laser communicator, uses electromagnetic waves to transfer information without direct connection between the input and output devices. This project will also investigate how the sound waves are transmitted as electrical and light signals...
    2,806 Words | 8 Pages
  • Electromagnetic Waves - 446 Words
    Electromagnetic waves are radiated energy of all different strengths. They’re different from sound waves and water waves because they have the ability to travel through empty space. A vacuum. These are the only types of waves that do not need any type of medium because of photons. Photons are tiny particles that don’t get traveled through, but make up electromagnetic waves. Photons travel with the wave at about 300,000 k/s. also known as the speed of light. The more energy the photons have, the...
    446 Words | 2 Pages
  • Electromagnetic Spectrum - 420 Words
    The electromagnetic spectrum The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes, visible that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation. Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more...
    420 Words | 2 Pages
  • Electromagnetic Waves - 579 Words
    Electromagnetic Waves It was once the great Scottish physicist James Clerk Maxwell (1831-1879) who had presented that electric and magnetic fields unstable together can form a spreading wave, appropriately called an electromagnetic wave. The properties of an electromagnetic wave are as follows: 1. They can travel through a vacuum at the same high speed, which is much faster than other types of waves that travel through a material. 2. They show the normal wave properties of reflection,...
    579 Words | 2 Pages
  • The electromagnetic spectrum - 1611 Words
    INTRODUCTION: The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. Radiation can be said to be energy that travels and spread as it goes. The "electromagnetic spectrum" of an object has a different meaning, and is instead the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. We tend to witness different radiations of the electromagnetic spectrum without knowing, example is the visible light...
    1,611 Words | 6 Pages
  • Electromagnetic Spectrum: Scarcity and Interference
    What exactly is the electromagnetic spectrum? Is a continuous range of wavelengths, which includes gamma rays, ultraviolet waves and other forms of electromagnetic radiation. How does the issue of scarcity and interference relate to the electromagnetic spectrum? The spectrum is considered scarce because of the limited number of frequencies for operation and two parties cannot broadcast on the same frequency in the spectrum. Interference not only can be caused by broadcasters but by natural...
    338 Words | 1 Page
  • Method of Microwave Radiation Experiment
    Equipment • Cheap plants in three even groups • Three similar sized containers • A ready supply of water • A modern microwave • A ruler • Soil • Measuring cup • Record book Method After the all the equipment is bought, the first step to replicate this experiment is to place the three plant group in each of the containers, filling the container to around three quarters of the way up, not covering the plant. In my case the plants I used were spinach sprouts, with two sprouts in each...
    423 Words | 2 Pages
  • Physics Lab/ Radiation - 709 Words
    Blackbody Radiation Lab 11 Go to http://phet.colorado.edu/simulations/sims.php?sim=Blackbody_Spectrum and click on Run Now. 1) In this lab, you will use the Blackbody Spectrum Simulation to investigate how the spectrum of electromagnetic radiation emitted by objects is affected by the object's temperature. In this simulation, you can input the temperature and observe the spectrum of the radiation emitted. a) The temperature of stars in the universe varies with the type of star and the age...
    709 Words | 3 Pages
  • Electromagnetic Spectrum Sum - 406 Words
    Electromagnetic Spectrum 299,792,458 m/s – speed of light 186,282 mile/s Speed of light = WL x Frequency C=(^)(v) Wavelength sa Electric field Band Designations: ELF- extreme low – 3-30hz SLF- super – 30-300hz ULF- ultra – 300hz-3khz VLF – very – (Vice Versa) LF – low MF – medium HF – VHF – UHF – SHF – EHF – 30-300ghz Standard Frequency JJY- japan – 40khz, 60khz MSF – Rugby,England – 60khz,5km,3.1miles) WWVB, Colorado,USA (60khz) HBG – Switzerland (75khz) DCF77 – main,Germany (77.5khz)...
    406 Words | 3 Pages
  • comparing wavelengths in the electromagnetic spectrum
    Comparing Wavelengths In The Electromagnetic Spectrum Gamma rays have the smallest wavelength in the electromagnetic spectrum, there is only 0.03 nano meters between the peak of each wave as is shown in this diagram. There is a universal speed that electromagnetic waves travel at which is 300m/s and this means that the wave frequency depends on the wavelength. The wave frequency for gamma rays is 300/0.03=10000hz. Gamma rays are produced by violent events in the universe such as supernovas...
    747 Words | 2 Pages
  • Blackbody Radiation A Spectroscopic Study
    Blackbody radiation: a spectroscopic study John Greavu Partner: Nicholas Souhleris TA: Yilikal Ayino (Friday, Section 006) April 18, 2014 I. PRELAB A blackbody is a body that absorbs all electromagnetic radiation and emits a continuous spectrum, such as heated cavern with just a small opening to the outside world. In 1900, German physicist Max Planck derived an expression for this blackbody spectrum. Knowing that oscillators emit radiation, he assumed that oscillators within the cavern...
    661 Words | 3 Pages
  • Antenna-Radiation Pattern - 1150 Words
    Radiation pattern From Wikipedia, the free encyclopedia Jump to: navigation, search Antenna radiation patterns In the field of antenna design the term 'radiation pattern' most commonly refers to the directional (angular) dependence of radiation from the antenna or other source (synonyms: antenna pattern, far-field pattern).[1][2][3] Particularly in the fields of fiber optics, lasers, and integrated optics, the term radiation pattern, or near-field radiation pattern, may also be used as a...
    1,150 Words | 4 Pages
  • Radio Waves and Electromagnetic Fields
    PHY112 – Lab 9 – Worksheet Directions •When you go to the simulation you will have a choice to either run the simulation or download the simulation. Run may not work on all computers. If it does not run, download the simulation and work from there. •When the simulation opens, play with the controls and buttons to become familiar with how the simulation works. •Note: A formal lab report is not required for this activity. You may cut and paste this worksheet to a new Word document and adjust...
    1,890 Words | 7 Pages
  • Research About Computer Radiation
    Effects of Computer Radiation in the Health of I-BSN-2 Students of Cavite State University I. Introduction Nowadays, computers are very common in a household. Computers are very advantageous which actually has unlimited capabilities; in seeking a certain information, for recreation, for entertainment purposes and many other uses. But despite those infinite uses of computers, some say that computers cause detrimental effects to those who are exposed to its radiation. Radiation,...
    4,119 Words | 14 Pages
  • Uses of Electromagnetic Waves - 298 Words
    Uses of Electromagnetic Waves Radio Waves * TV and FM radio (short wavelength) * Direct line of sight with transmitter (do not diffract) * Medium wavelength – travel further because they reflect from layers in the atmosphere * Used for transmitting signals. Microwaves * Microwaves are used in satellite television broad casting. * It is used to transmit mobile phone signals between Mast, which may be up to 20km apart. * Microwaves are absorbed by water...
    298 Words | 2 Pages
  • Black Body radiation - 456 Words
    Name __________________ Blackbody Radiation Lab 11 Go to http://phet.colorado.edu/simulations/sims.php?sim=Blackbody_Spectrum and click on Run Now. 1) In this lab, you will use the Blackbody Spectrum Simulation to investigate how the spectrum of electromagnetic radiation emitted by objects is affected by the object's temperature. In this simulation, you can input the temperature and observe the spectrum of the radiation emitted. a) The temperature of stars in the...
    456 Words | 2 Pages
  • Black Body Radiation - 304 Words
    Blackbody radiation is the electro-magnetic radiation emerging from a small hole in a perfectly black box containing electromagnetic radiation at a high temperature. Scientists were interested in setting standards for the electric and thus measured the distribution of the total electromagnetic energy in a black box among the different wavelengths of the light. But not until Max Planck, at the turn of the century, was a single mathematical formula for the observed distribution of the energy among...
    304 Words | 1 Page
  • The Difference Between Plasma and Electromagnetic Wave
    Introduction The natural source of both plasma and electromagnetic radiation (EMR) is the sun. There are various similarities such as the presence of electric and magnetic field in both EMR and plasma. Both transport contain energy and are ubiquitous in the universe. However, there are large differences between EMR and plasma. Differences between EMR and plasma EMR is energy that propagates through a medium in the form of EM waves. It has an electric and magnetic field which oscillate...
    283 Words | 1 Page
  • Science Essay on Conduction Radiation and Convection
    Conduction Conduction Conduction is the transfer of thermal energy between regions of matter due to a temperature gradient. In the engineering sciences, heat transfer includes the processes of thermal radiation, convection, and sometimes mass transfer and often more than one of these processes occurs in a given situation.Shaun Prado 8F Shaun Prado 8F Steady-state conduction Steady state conduction is the form of conduction. This happens...
    648 Words | 3 Pages
  • On Electromagnetic Environment Effect on Wireless Communication Systems
    Research on electromagnetic environment effect On wireless communication systems Gohar Rouhani Zeidanlou Department of Electronic and Electrical Engineering. University Tenaga Nasional E-mail:gohar.rouhani@hotmail.com Abstract¬—The protection against electromagnetic environment effects (E3) on system is becoming more important since the modern communication based on wireless technology is developing fast. The reduction of the electromagnetic interference(EMI)and ensuring...
    2,424 Words | 8 Pages
  • Black Body Radiation and Enrgy Dissipation of Human Body (Where Does All the Energy from Foods Go?)
    When solid objects are heated, they emit radiation. At normal temperature, we are not aware of this radiation because the intensity is low. At higher temperatures, there is sufficient infrared radiation that we can feel the "heat" if we are close to them. At even higher temperature, the objects actually glow, like the heating element of toaster or red-hot electric stove burner. Since they are radiating energy, there must be a rate at which they are radiating. They may radiate 10 Joules per...
    770 Words | 3 Pages
  • Science of Stars Paper - 1326 Words
    Science of Stars Paper Diana L. Mieltowski SCI/151 September 27, 2010 Robert Austin Science of Stars Paper In this paper I will explain how astronomers determine the composition, temperature, speed, and rotation rate of distant objects using various methods. I will explain the properties of stars. I will also summarize the complete lifecycle of the Sun and determine where the Sun is currently in its lifecycle. Measurement of Distant Objects Light is a type of energy. Light behaves like...
    1,326 Words | 4 Pages
  • Physics Chapters 13-30 Exam Review
    Chapter 13 – States of Matter Pressure (P) – the amount of force per unit area. Pressure=F/a or P=F/a Pascal’s Principle “Any change in pressure at a point on a confined fluid is transmitted throughout the fluid”. Any change is transmitted throughout the fluid. Buoyancy & Archimedes Principle “When an object is submerged in a fluid, it displaces a certain volume of that fluid. The amount of force pushing upward on the object is equal to the density of the fluid (ρ) times the...
    1,144 Words | 5 Pages
  • Science Physics P1 - 4249 Words
    Ideas about the solar system Our understanding of the solar system has changed over many centuries. Scientists such as Ptolemy, Copernicus and Galileo added their ideas to our changing understanding. We observe the universe using a variety of equipment, from telescopes to orbiters and landers. Models of the solar system The planets and the Sun orbit the Earth in Ptolemy's model. Our understanding of the universe has changed over time. Different civilisations have created different models...
    4,249 Words | 14 Pages
  • Data Communications - 469 Words
    Introduction Data communications (Datacom) is the engineering discipline concerned with communication between the computers. It is defined as a subset of telecommunication involving the transmission of data to and from computers and components of computer systems. More specifically data communication is transmitted via mediums such as wires, coaxial cables, fiber optics, or radiated electromagnetic waves such as broadcast radio, infrared light, microwaves, and satellites. Data Communications...
    469 Words | 2 Pages
  • Microwaves - 314 Words
    Microwaves History of Discovery: In 1864 James Clerk Maxwell predicted the existence of electromagnetic waves/microwaves. Then in 1888 Heinrich Hertz was the first to demonstrate the existence of microwaves by building an apparatus that detected and produced microwaves in the UHF region. Also in 1894 J. C. Bose publicly demonstrated radio control of a bell using millimeter wavelengths, and conducted research into the propagation of microwaves. Origin(s): One origin of microwaves include a...
    314 Words | 2 Pages
  • Astronomy Study Guide - 1752 Words
    Newton’s Laws of Motion and Gravity Define mass, weight, force, and acceleration. Mass – A measure of the total amount of material in a body, defined either by the inertial properties of the body or by its gravitational influence on other bodies. It is proportional to, but not the same as, its mass Force – A quantitative description of the interaction between two physical bodies, such as an object and its environment. Force is proportional to acceleration. Acceleration – A vector quantity...
    1,752 Words | 6 Pages
  • UBT1 Task 1 - 926 Words
    ZBT1 Task 1: Wave Physics Ian Trimble Student ID: 000352590 Introduction We benefit greatly the benefits of long distance communication, eating food from different parts of the countries without fear of spoilage, radiation treatment, and heating up food in a matter of minutes, and a myriad of other wonders all do the wonders of waves, be they sound waves as well as light waves. In this timeline, we will look at all of the different light waves, their history, and their benefits. Annotated...
    926 Words | 3 Pages
  • Heinrich Hertz - 460 Words
    Heinrich Hertz Hertz, in 1886, constructed a series of experiments to verify J.C. Maxwell’s predictions on the electromagnetic spectrum. Heinrich Hertz's First Transmitter from 1886 The instrument used by Hertz incorporated an induction coil to produce an extremely high voltage. This was connected to a circuit with a very small opening, with small copper balls on each end. Capacitor plates were used to adjust the capacity of the circuit for resonance. A ring of copper wire with a...
    460 Words | 2 Pages
  • Remote Sensing - 67952 Words
    Fundamentals of Remote Sensing A Canada Centre for Remote Sensing Remote Sensing Tutorial Natural Resources Ressources naturelles Canada Canada Fundamentals of Remote Sensing - Table of Contents Page 2 Table of Contents 1. Introduction 1.1 What is Remote Sensing? 5 1.2 Electromagnetic Radiation 7 1.3 Electromagnetic Spectrum 9 1.4 Interactions with the Atmosphere 12 1.5 Radiation - Target 16 1.6 Passive vs. Active Sensing 19 1.7 Characteristics of...
    67,952 Words | 260 Pages
  • Data Communications Notes - 1931 Words
    Transmission Media • Transmission medium – Physical path between transmitter and receiver – May be guided (wired) or unguided (wireless) – Communication achieved by using em waves • Characteristics and quality of data transmission – Dependent on characteristics of medium and signal – Guided medium ∗ Medium is more important in setting transmission parameters – Unguided medium ∗ Bandwidth of the signal produced by transmitting antenna is important in setting transmission parameters ∗ Signal...
    1,931 Words | 7 Pages
  • Elec - 2173 Words
    Electricity Electromagnetic Oscillations and Waves Diffraction and polarization of microwaves 4.5.06-00 What you can learn about … Diffraction Focal point Linearity Circularly and elliptically polarized waves Transverse waves Polarizer and Analyzer Constructive and destructive interference Principle: The equivalence between visible light and microwaves as special cases of the total spectrum of electromagnetic waves can be demonstrated using diffraction and polarization of...
    2,173 Words | 19 Pages
  • Beer's Law - 1898 Words
    Spectrophotometry/Beer’s Law Lecture Chemistry 114 Overview: Spectroscopy will be a tool that you will use as you continue in your chemistry, biology and physics courses. Already, you have used spectroscopy in this course and CHM 113. Earlier in the term, we used the spectrophotometer to monitor double stranded and single stranded DNA. We have also used it to measure concentration of chemicals. This lecture will discuss spectophotometry in more detail. Background: You will recall...
    1,898 Words | 7 Pages
  • Electron - 568 Words
    Electromagnetic Spectrum Project Introduction: In this project you work for a company that produces and sells electromagnetic waves (Waves-R-Us). Your job is to do extensive research on the company's products and then to design a catalog that will persuade customers to buy our product. You will also need to inform customers of the dangers of our waves. Task: You must design a catalog that will persuade the customers of Waves-R-Us to buy your products. Your catalog must have 1 page for...
    568 Words | 2 Pages
  • Bioresonance Tumor Therapy - 1395 Words
    Should We Use Electromagnetic Waves For Medical Purposes? Farah Labita 10A Electromagnetic waves are waves or periodic disturbances that do not need a medium to travel, unlike mechanical waves that do require a medium (solid, liquid or gas). Electromagnetic waves travel through vacuum and are caused by changes in electric and magnetic fields. Accelerating a charge creates electromagnetic waves and it travels at different waves and spans in a very broad spectrum. This wide spectrum of...
    1,395 Words | 4 Pages
  • Technology - Quiz - 624 Words
    Question: Some lasers are referred to as being “cw.” What does “cw” mean? 1) Circular wave 2) Constant white 3) Continuous wave 4) Clear white Science Quiz, Technology Quiz Question: What is the process responsible for producing photons in a diode laser? 1) Fermi level shift 2) Majority carrier injection 3) Carrier freeze out 4) Electron-hole recombination Science Quiz, Technology Quiz Question: What are three types of lasers? 1) Gas, metal vapor, rock 2) Pointer, diode,...
    624 Words | 4 Pages
  • Senior Science - 1756 Words
    Name: ________________________ Class: __________ | Carlingford High School 2008 YEAR 12 2 UNIT SENIOR SCIENCE HALF YEARLY EXAM Time Allowed: 2 hours Instructions: * Attempt all questions * Answer all questions in the spaces provided on this paper. SECTION I: Multiple Choice Questions (Q1-15) (15 marks) SECTION II: Extended Response Questions (Q16-29) (65 marks) Name: __________________________ Class: _____________ SECTION I: 15 Multiple...
    1,756 Words | 17 Pages
  • Waveguide - 1527 Words
    Whites, EE 481 Lecture 10 Page 1 of 10 Lecture 10: TEM, TE, and TM Modes for Waveguides. Rectangular Waveguide. We will now generalize our discussion of transmission lines by considering EM waveguides. These are “pipes” that guide EM waves. Coaxial cables, hollow metal pipes, and fiber optical cables are all examples of waveguides. We will assume that the waveguide is invariant in the zdirection: y Metal walls b ,  x z a and that the wave is propagating in z as e ...
    1,527 Words | 14 Pages
  • Infrared Waves - 670 Words
     The electromagnetic spectrum consists of seven different waves. The waves are in the order of how big the wavelength is and its frequency, from the biggest to the smallest: Radio waves, Micro waves, Infrared, Visible light, Ultra Violet, X-rays and Gamma rays. Each of them has their own special use in everyday life. For example, to turn on a TV you need to use Radio waves, to heat your food you use Microwaves and X-rays are used to look into people’s bodies. Some waves, like Radio waves can...
    670 Words | 2 Pages
  • Light and Matter - 1935 Words
    Chapter II Light and Matter The Inner Workings of the Cosmos 2.4 The Distribution of Radiation All microscopic objects – fires, cubes, people, and stars – emit radiation at all times. They radiate because the microscopic charged particles in them are in constant random motion, and whenever charges change their state of motion, electromagnetic radiation is emitted. The temperature of an object is a direct measure of the amount of microscopic motion within it. The hotter the...
    1,935 Words | 7 Pages
  • Determination of an Unknown Concentration of Potassium Manganate Using Colorimetry
    Determination of an Unknown Concentration of Potassium Manganate using Colorimetry Introduction The purpose of this experiment is to conclude the concentration of an unknown solution using colorimetry to plot a calibration curve. Colorimetry measures the absorption of light at wavelengths within the visible region of the electromagnetic spectrum. It can be used to identify the unknown concentration of a solution in reference to a solution of a known concentration. When a solution appears...
    934 Words | 4 Pages
  • An Adventure Into Astronomy - 1028 Words
    An adventure into Astronomy Late at night I like to go into my backyard with a telescope and look at the stars that far away in the night sky. The view of thousands of stars feeds me with wonder and amazement about both the stars origins, and what treasures they may hold floating around them. All life needs a host star to form around, and all life comes from the ashes of these once glorious masses of gas. Astronomy offers us a great view of the universe around us, you can join me and others,...
    1,028 Words | 3 Pages
  • Spectrophotometer Lab Report - 1240 Words
    Introduction The aims of the lab session was to familiarize with the principles, operation and application of a light spectrophotometer. This report discusses an experiment to study the relationship of absorbance and concentration, the interaction of electromagnetic radiant energy(ERE) and matter which is an important aspect of the Beer-Lambert's Law. This law states that the absorption of a compound is directly proportional to the concentration of that particular compound. This is because (a...
    1,240 Words | 6 Pages
  • Grade 7 Integrated Science: Diagnostic Test
     Republic of the Philippines DEPARTMENT OF EDUCATION Region IV-A CALABARZON DIVISION OF LAGUNA Santa Cruz Grade 7 - Integrated Science Diagnostic Test – SY 2012-2013 Direction: Choose the letter of the best answer and write it on your answer sheet. If the answer is not among the choices write e. Quarter 1 1. Which of the following is an example of a solution? a. Vinegar b. Halo-halo c. Sand in water d. Oil in water 2. Which statement describes the solute? a. It is the solid formed in...
    2,467 Words | 12 Pages
  • spectrophotometric analysis of copper sulphate
    spectrophotometric analysis of copper sulphate Introduction: In the modern usage. The term spectroscopy includes a large group of techniques which differ widely in their mode of application and information they reveal. As a useful working definition, spectroscopy is a study of interaction of electromagnetic radiation with matter in the experiment it means it's the usage of ultra-light to measure the absorbance of the copper sulpate. The regions of the electromagnetic spectrum immediately...
    670 Words | 5 Pages
  • Lab: Blackbody Spectrum Simulation
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