PRELIMINARY PHYSICS Syllabus Notes 2007 Andrew Harvey 1st Edition PRELIMINARY PHYSICS Syllabus Notes 2007 Andrew Harvey 1 st Edition Copyright © Andrew Harvey 2007 Preliminary Physics Past Paper Solutions by Andrew Harvey is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.5 Australia License. Based on a work at andrew.harvey4.googlepages.com. First Edition published November 2007. 2006 Edition first released June 2006‚ updated July 2007.
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and the target are located remotely apart and the electromagnetic radiation serves as a link between the sensor and the object‚ the sun being the major source of energy illuminating the earth. The part of this energy is reflected‚ absorbed and transmitted by the surface. A sensor records the reflected energy. Remote Sensing is performed using an instrument‚ often referred to as a sensor. Most of the remote sensing instruments record electromagnetic radiation (EMR) that travels at a velocity of 3x10^8
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Seeing the Invisible A Lesson Giving Students an Opportunity to Discover Ultraviolet and Infrared Radiation Coming from the Sun By: Sallie M. Smith Howard B. Owens Science Center for the ISTP Mission istp.gsfc.nasa.gov/istp/outreach/solar_observation.pdf istp.gsfc.nasa.gov/istp/outreach/student_booklet.pdf 1 Seeing the Invisible - Table of Contents - 5 E’s Lesson Plan ........................................................................................................... 3 Teacher
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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
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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
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• Historical Milestones Development of Light Theory • • 2. Historical Development Isaac Newton – Particle Theory & Prism Christiaan Huygens – Wave Theory Thomas Young – Double-Slit Experiment James Maxwell – Electromagnetic Theory Heinrich Hertz – Radiowaves & Wireless Experiment William Roentgen – X-rays Max Planck – Radiation Theory Albert Einstein – Photo Model • 3. Isaac Newton (1642-1727) Particle Model of Light (1671) Light rays is comprised of a stream of massless particles
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Electromagnetic radiation (EM radiation or EMR) is a form of radiant energy‚ propagating through space via photon wave particles. 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 one another‚ perpendicular to each other and perpendicular to the direction of energy and wave propagation
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Flame Tests Atomic Emission and Electron Energy Levels AES‚ or atomic emission spectroscopy‚ is a method which chemically analyzes the particular wavelength of a sample element to identify and determine the abundance of this certain element. The wavelength of the atomic spectral line unveils the identity of the element while the emitted light intensity is proportional to the number of atoms in the element. The flame test is also a very effective way to identify an individual element. The color
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The Big Bang Theory What is the Big Bang Theory? The Big Bang is the dominant (and highly supported) theory of the origin of the universe. In essence‚ this theory states that the universe began from an initial point or singularity which has expanded over billions of years to form the universe as we now know it. In 1959 a survey was conducted of scientists across America concerning their understanding of the physical sciences. One particular question asked “What is your concept of the age of
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you could hire someone to guard your favorite things? This research paper is going to talk about‚ how robots work. Terms that will be discussed in this paper will include Infrared (IR) light‚ electromagnetic radiation‚ electromagnetic spectrum‚ and sensors. Infrared radiation light is simply electromagnetic radiation with longer wavelengths (The American Heritage Student Science Dictionary 177). Infrared is usually called Infrared light‚ though it’s not visible to the human eyes (The American Heritage
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