Force is required to produce motion in a body. Once it gains motion‚ it will‚ without any further force‚ keep on moving with uniform velocity and zero acceleration only in ideal case where there is no friction force. If friction force was completely removable‚ everything in the universe would then keep on moving without any external force once it was set into motion. But it is a fact that friction can never be completely removed‚ thus the notion of ever uniform velocity is not possible in this real
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Year 11 Preliminary Physics Assessment Tasks Year 11 Preliminary Physics Assessment Tasks Research Report – Models of the Universe Research Report – Models of the Universe Date Due: Friday 31st Agust Weighting: 15% Abstract The Universe is where everything exists‚ matter and energy. There are two main models of the universe: the geocentric model and the heliocentric model. The geocentric model is where the Sun and other planets‚ moons and stars revolve around the Earth. The
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FORM 4 | Chapter 1 | INTRODUCTION TO PHYSICS | | FARHAH FADZLI | [Pick the date] | [Type the abstract of the document here. The abstract is typically a short summary of the contents of the document. Type the abstract of the document here. The abstract is typically a short summary of the contents of the document.] | Derived quantities (speed is derived from dividing distance by time) Derived unit Combination of base units trough multiplying and/or dividing them Example 1:
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force due to gravity‚ g the acceleration due to gravity‚ G the Universal Gravitational Constant (6.67x10-11 N.m2/kg2)‚ m the mass and rthe distance between two objects. Then F = G m1 m2 / r2 Acceleration due to gravity outside the Earth It can be shown that the acceleration due to gravity outside of a spherical shell of uniform density is the same as it would be if the entire mass of the shell were to be concentrated at its center. Using this we can express the acceleration due to gravity (g’)
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ball has the ability to do work in that it can act upon other objects with when it collides. Potential energy is stored energy that objects have because of their position. A cup on a table has potential energy: If you knock the cup off the table‚ gravity will accelerate the cup‚ and its potential energy will convert to kinetic energy. Kinetic energy is the energy of mass in motion. The kinetic energy of an object is the energy it has because of its motion. Conservation of
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several different graphs. A velocity vs. time graph can be used to describe both acceleration and displacement. Acceleration is shown by the slope of the graph‚ displacement by the area. Billy and Crystal both took a short car trip along a road heading straight west from their house. They recorded their velocity every second. After they got home‚ each of them added their data to the graph above. Write Using physics vocabulary‚ compare/contrast Billy’s and Crystal’s trip. Be sure to – understand
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M11/4/PHYSI/SP2/ENG/TZ1/XX 22116511 PHYSICS STANDARD LEVEL PAPER 2 Candidate session number 0 0 Wednesday 11 May 2011 (afternoon) Examination code 2 1 hour 15 minutes 2 1 1 – 6 5 1 1 INSTRUCTIONS TO CANDIDATES • • • • • Write your session number in the boxes above. Do not open this examination paper until instructed to do so. Section A: answer all questions. Section B: answer one questions. Write your answers in the boxes provided
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Physics 1 Lab #10 1/29/13 Chapter 7 Lab:Pop Rockets 1. List and explain two ways that you could improve the flight performance of your rocket. Your responses must consider the materials you had available to work with. The rocket I produced was a normal looking rocket compared to the group of rockets I was working with. It was medium size in length and thickness. The head of the rocket was a little wide and lose‚ and the flaps were not arrow dynamic what so ever. To improve the flight
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Keith Beachy College Physics 1 Lab - Section 001 CP1 Lab Report - Projectile Motion October 12‚ 2009 The purpose of Lab Assignment 1 was to analyze projectile motion. In doing so‚ we determined the initial velocity of the ball shot horizontally from the spring loaded projectile launcher. Also‚ we verified the angle at which the projection of the ball would produce a maximum range. Lastly‚ we predicted the range that a ball would travel at a certain angle‚ theta. Projectile motion
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mm‚ where x is A) less than 6.5. B) greater than 6.5. Answer: B Var: 1 7) If an operatic aria lasts for 5.75 min‚ its length expressed in seconds is x s‚ where x is A) less than 5.75. B) greater than 5.75. Answer: B Var: 1 Generic Physics: Topic 1 -- CVC 5/23/11 -- Page 1 8) Scientists use the metric system chiefly because it is more accurate than the English system. A) True B) False Answer: B Var: 1 9) When adding two numbers‚ the number of significant figures in the sum is equal to the number of significant
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