other communications device as a result of coupling between transmission circuits. Waveguides - A system of material boundaries in the form of a solid dielectric rod or dielectric-filled tubular conductor capable of guiding high-frequency electromagnetic waves. FTTH – Fiber-to-the-home the fiber reaches the boundary of the living space‚ such as a box on the outside wall of a home in order to provide electronic connection. Simplex – Of or relating to a telecommunications system in which only
Premium
Short Questions: Differentiate between guided media and unguided media. Differentiate between an analog and a digital electromagnetic signal. What are three important characteristics of a periodic signal. What is the relationship between the wavelength and frequency of a sine wave. Define fundamental frequency. What is the relationship between a signal’s spectrum and its bandwidth. What is attenuation? Define channel capacity. What key factors affect channel capacity? Problems:
Premium Wave Wavelength Electromagnetic radiation
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 that
Premium Electromagnetic radiation Electron Light
>>> spreads/ radiates in all directions from a single point * identify that mechanical waves require a medium for propagation while electromagnetic waves do not Mechanical waves require a medium (particles in order to propagate) while electromagnetic waves do not. Classification of Waves: -in terms of medium > mechanical (requires)‚ electromagnetic (doesn’t require) -in terms of particle oscillation > mechanical >>> transverse (perpendicular)‚ longitudinal (parallel) * define
Premium Light Electromagnetic radiation Wavelength
gravity on one drop * Charge was applied to falling drops by illuminating bottom chamber with x-rays‚ exciting electrons‚ causing them to attach to oil. * Using a battery‚ electric voltage was applied to the plates. When just right‚ the electromagnetic force would balance out the force of gravity‚ suspending particles in midair. * Noticed charge was always multiples of 1.6 x 10^19 * Q= mg/E Gold Foil Experiment * Radioactive particles (alpha radiation)
Premium Photon Quantum mechanics Electromagnetic radiation
‘‘Wavelength‚ Frequency‚ Energy and Flame Color Produced by Different Metals’’ Period 8 October 30th 2013 October 24th 2013 Sosa #2 ABSTRACT: The purpose of this project was to identify the different flame colors that the different metals release‚ compare the flame colors with wavelength‚ compare the wavelength of different flames to their frequencies and energies‚ explain how the flames colors were produced‚ compare and contrast the results obtained in the lab with regard
Premium Wavelength Electromagnetic radiation Light
A flame test is a procedure used to test qualitatively for the presence of certain metals in chemical compounds. When the compound to be studied is excited by heating it in a flame‚ the metal ions will begin to emit light. Based on the emission spectrum of the element‚ the compound will turn the flame a characteristic color. 4. A. Quanta- a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents; an analogous discrete amount of any other physical
Premium Photon Atom Electromagnetic radiation
ions‚ based on each element’s characteristic emission spectrum” (Flame Test 1). Using this test‚ an element can be identified using its emission spectrum‚ or color. An emission spectrum is defined as the spectrum of frequencies of electromagnetic radiation emitted due to an atom’s electrons making a transition from a high energy state to a lower energy state. Since each element has different numbers of electrons‚ each element’s emission spectrum is different. This allows elements to be identified by
Premium Photon Atom Spectroscopy
always move at the constant speed of about 300‚000 km/sec (186‚000 mi/sec) when they are in a vacuum. When light diffracts‚ or bends slightly as it passes around a corner‚ it shows wavelike behavior. The waves associated with light are called electromagnetic waves because they consist of changing electric and magnetic fields. II | | THE NATURE OF LIGHT | To understand the nature of light and how it is normally created‚ it is necessary to study matter at its atomic level. Atoms are the building
Premium Light Electromagnetic radiation
modems and various standards organization bodies. Describe the various circuit types. Describe the allocation of spectrum for use in communication Name and define the functions of various standard organizations locally and internationally • • • This chapter from (Goleniewski and Jarrett‚ 2006) discusses the types of transmission lines and network connections‚ the electromagnetic spectrum‚ and what bandwidth is all about in the emerging broadband era. It looks at the differences between analog and
Premium Digital Modulation Electromagnetic radiation