that light behaves as particles. In this experiment‚ an electron was emitted from the metal with a specific kinetic energy. We know that light is a wave because it contains electric fields and magnetic fields. The wave in light is known as an electromagnetic wave‚ and light spreads out from the source that creates the light. The electric and magnetic fields present in light waves obtain a vacuum‚ which makes objects vibrate. The electric and magnetic fields present in the vacuum create the light wave
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major role in contributing to the reactions which create color. Heat makes electrons in the atoms of the colorant rearrange and become high energy electrons. Also‚ an electromagnetic wave is created through this process. The wavelength of the electromagnetic wave determines what color light will be given off. However‚ electromagnetic waves may take the form of heat‚ ultraviolet rays‚ or light. Certain atoms must be used in order for these waves to create light. Since their discovery in 600 A.D.‚ fireworks
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Radio waves for Communication Radio waves are electromagnetic waves with wavelengths larger than the infrared light. Like all other electromagnetic waves‚ they travel at the speed of light. The wavelengths can vary from the size of a football field to the size of a football. They can be produced naturally by large stars and by lightning. Man-made radio waves are used for transmitting signals and currents. Specific Properties of Radio Frequency (RF) Current Radio frequency is the frequency of radio
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3-30 MHz or 3 000 000 – 30 000 000 Hz. The wave length range of High Frequency is 10-100 meters The Higher the frequency the shorter the wave length. High Frequency belongs to the radio portion of the electromagnetic spectrum. When electric current is sent back and forth through a wire an electromagnetic wave is created which can be amplified and transmitted out through an antena. It can then be received by a receiver which takes that electromagnic signal and turns it back into and electric signal and
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Write your name here Surname Other names Centre Number Candidate Number Edexcel GCSE Physics/Science Unit P1: Universal Physics Higher Tier Friday 2 March 2012 – Morning Time: 1 hour You must have: Calculator‚ ruler Paper Reference 5PH1H/01 Total Marks Instructions black ink or • Usein the boxesball-point pen. page with your name‚ at the top of this • Fill number and candidate number. centre all • Answer thequestions. in the spaces provided questions
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1. What is the name for all the electromagnetic waves that exist? Names of the electromagnetic waves that exist are Gamma Rays‚ X-Rays‚ Ultraviolet Waves‚ Visible Light‚ Microwaves‚ and Radio Waves. 2. What are electromagnetic waves produced from? What two things do they have? Electromagnetic waves are produced by the vibration of charged particles and have electrical and magnetic properties. 3. What is the name for the section of the electromagnetic spectrum that we can see with our
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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
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ASSIGNMENT COVER Course code: Course name: Assignment title: Research Paper - HAARP Instructor’s name: Student’s name: Date: Comments: Grade: /100 For some decades the man gives the impression of children playing with forces that are unable to comprehend and control. But behind every great discovery often pose risks‚ even threaten life itself on our planet. The fission of the atom‚ considered as the greatest discovery of 20th century‚ released
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Study guide Ch. 17 & 18 Waves‚ Light & EM Spectrum Name___________________________ Study Your Notes‚ textbook‚ worksheets‚ workbook pages & labs to fill in this information: Chapter 17: Mechanical Waves: a disturbance in matter that carries energy from one place to another Transverse Waves: a wave that causes the medium to vibrate at right angles to the direction in which the wave travels. Surface waves: a wave that travels along a surface separating two media Longitudinal
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Wireless Technology Wireless Technology Ethames Graduate School Greenwich University BSc in Computing Ethames Graduate School Greenwich University BSc in Computing Komal Sunil Savtale The impact or the role of technology in our professional as well as personal lives is inevitable. For those who research its necessary to understanding how technology shapes people’s interactions with each other and vice versa and the way natural world plays a vital role in order to develop and implement
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