historical development of the models of the universe from the time of Aristotle to the time of Newton. Aristotle: Geocentric model of the universe involved a series of 56 concentric spheres to which celestial objects were attached. The Earth was not in motion as the stars showed no measureable parallax. Each planet‚ the Sun‚ and the Moon were in their own sphere and the stars were positioned on a larger sphere surrounding all the others. Ptolemy: Geocentric model of the universe placed the Earth at
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Formal motion and time study‚ however‚ goes somewhat beyond the concept of work simplification and streamlining of processes. One author lists four distinct parts to the process‚ namely‚ (1)finding the most economical way of doing the job‚ (2) standardizing the methods‚ materials‚ and equipment‚ (3) determining accurately the time re- quired by a qualified person working at a normal pace to do the task‚ and (4) assisting in training the worker in the new method. The differ- ent parts may be considered
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Physics of a Guitar (Rough Draft) The guitar is the most played instrument in the music world. The oldest surviving guitar is thought to be made around 1776 in Italy by Gaetano Vinaccia. Though‚ the guitar looks like a simple instrument to construct or play there is a lot of physics behind the creation of it‚ from the strings to the air inside‚ the anatomy‚ and the sound spectrum. There are three types of guitars that are made: nylon acoustic‚ steel-string‚ and electric. Acoustic guitars produce
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Meter Stick Meter Stick Meter Stick The purpose of this experiment is to use the ballistic pendulum to determine the initial velocity of a projectile using conservation of momentum and conservation of energy as well as motion of projectiles. Carbon Paper Meter Stick Ballistic Pendulum In this experiment a steel ball will be shot into the bob of a pendulum and the height‚ h‚ to which the pendulum bob moves‚ as shown
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Motion and Change Motion and Change two physical displacement features that in turn make up all the physical reality. The rotational motion of electrons and nucleus generate the electrical fields that create all the elements known to man. The amount of neutrons and electrons depends on the elements structure‚ for example water is H2O. Water requires one hydrogen atom and two oxygen atoms this mixture combine creates water. Pre-Socratic philosophers attempted to explain the issues regarding issues
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Cooling Coffee Name: Diana Rusina Date:23.11.12 In this practical‚ you will be assessed on Design‚ Data Processing & Presentation and Conclusion & Evaluation – Read the checklist of the criteria for guidance. Introduction: It is Saturday afternoon. You brew yourself a cup of coffee and are just about to pour cold milk into the coffee. The doorbell rings and you realize immediately that your friend needs your help for a few minutes this afternoon. If you want to have your
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Introduction: Purpose: The Purpose of this experiment is to find the width of a piece of hair using diffraction pattern created by a thin film. Hypothesis: If the hair is human it will have a width of 10-4m. Procedure: 1. Place two pieces of glass flat against each other. 2. Obtain a piece of long hair‚ most likely from one group member’s head. 3. Place the hair between the sheets of glass on one edge. 4. Place a rubber band around the pieces of glass on the side opposite
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momentum occurs in each collision? momentum is always conserved. but you can calculate the vector sum p=mv of both objects before collisions after the collisions. your two vectors should be equal. 3. Write a complete conclusion for this lab. My purpose for this lab was to explore conservation of
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2006 / Finish date - May 2011 GCSE’s: Grades Achieved: GCSE English – A* GCSE Religious Studies – A* GCSE Math’s – B GCSE Spanish- B GCSE Science – A GCSE ICT – B GCSE History – A GCSE Technology - B Alevels: Grades predicted: Alevel Physics - B Alevel Business studies - A Alevel Philosophy and Ethics – A References Available on request
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Projectile Motion PHYS111 Formal Report 2 University of Canterbury Campbell Moulder Abstract The force of gravity is said to be a constant of 9.81 ms-2 (3). This can be proved by measuring the projectile motion of a bouncy ball and plotting a ∆Vertical Velocity vs. Time graph‚ the gradient of which should equal the constant force (acceleration due to) of gravity. Our gradient value of 10.26±0.49 ms-2 is consistent with the actual value of 9.81 ms-2. Introduction A projectile is an
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