The Conservation Of Mechanical Energy - 2277 Words

Abstract The purpose of this experiment was to test the conservation of mechanical energy. This was done so by using two different methods: (1) to test the conservation of mechanical energy using a cart with a load set on a PASCO track attached to a hanging mass by a string and pulley, and (2) to test the conservation of mechanical energy using a spring attached to a hanging mass. . In the first part of the lab involving gravitational potential energy, the theoretical value to be consistent with the law of conservation of mechanical energy was 0 J/m, but instead we obtained a value for ∆E/∆y to be 0.04772 ï‚ ± 0.00209 J/m. In the second part of the lab involving spring potential energy, the net change in energy should have been 0J, yet we calculated a value of 3.14 ï‚ ± 0.13 J. Although our result for the first part of the lab was quite accurate and close to 0 J/m, our result for the second part was not consistent with the theory since the value greatly deviates from zero. T he cause of this may have been certain errors while performing the lab. Gravitational Potential Energy Introduction and Theory: The energy that an object has due to its position in a gravitational field due to its position is known as the gravitational potential energy (ΔU). It is known that energy is conserved, so when the cart is released, the potential energy is converted into kinetic energy (ΔK). Due to friction, the equation would be non-conservative, yet the weight of paperclips can be used as aShow MoreRelatedAnalyzing The Conservation Of Mechanical Energy Of A Harmonic Oscillating Spring System1453 Words   |  6 PagesSection I: Worksheet 2. Discussion The purpose of this experiment was to analyze the conservation of mechanical energy of a harmonic oscillating spring-system. In addition, this observation involved analyzing to what affect some of the mechanical energy was lost or dissipated into other forms of energy, despite the experiment s attempt to minimize the dissipation of the energy as much as possible. The first part of the experiment involved calculating the spring force constant (k) of the harmonicRead MoreThe Physics Of Mechanical And Kinetic Energies1247 Words   |  5 PagesThe mechanical, gravitational potential and kinetic energies (measured and average) showed trends with the masses of the balls. The big ball (larger mass) possessed more mechanical, gravitational potential and kinetic energy than the small ball (see summary table above) whereas the ball with the smaller mass possessed less energy correspondingly (3.9976 0.4588, 1.2242 0.0428, 6.1853 1.2242). This trend was consistent throughout all of the recorded results. This can be justified by the equationsRead MoreJustification And Relevance Of Lesson Essay954 Words   |  4 PagesJustification and Relevance of Lesson Energy is the ability to do work. It has the potential to make changes, and any changes are due to work being done. This is significant because work can generate energy, and energy itself can do work (i.e., work done on windmills by the wind produces energy, and energy is used in homes to do work). Standards and Learning Objectives Content Learning Standards (s) HS-PS3-1: Create a computational model to calculate the change in the energy of one component in a systemRead MoreThe Relationship Between Gravitational Potential Energy, Kinetic Energy And Total Mechanical Energy Of A Cart1452 Words   |  6 PagesPurpose: To find out the relationship between gravitational potential energy, kinetic energy, and total mechanical energy of a cart as it rolls down a ramp Hypothesis: If the cart rolls down the ramp with constant speed, then the kinetic energy will get bigger, the gravitational potential energy will decrease, and the total mechanical energy will stay at the same constant value, because due to the law of Conservation of Energy, these are the estimated results. Materials/Apparatus: ramp (1) textbooksRead MoreConservation of Energy Lab Essay1536 Words   |  7 PagesFREE FALL AND CONSERVATION OF MECHANICAL ENERGY ABSTRACT Free fall is defined as the ideal falling motion of an object that is subject only to the earth’s gravitational field. To prove the law of conservation of energy, the free fall motion of an object can be represented through 3 different analyses; position of the object vs. time, velocity of the object vs. time, and acceleration of the object vs. time. It is observed in this ball toss experiment, at any point during the free fall period,Read MoreA Look At The Sound Of Music1550 Words   |  7 Pagesyour ear. A disturbance in space results in a periodic wave which propagates through that space, usually transferring energy (â€Å"Introduction to Waves†). This transfer of energy can be explained by the conservation of momentum and energy in collisions. Momentum is never lost; kinetic energy may be lost. If kinetic energy is conserved, the collision was elastic; if the kinetic energy was transferred, the collision was inelastic. Momentum is a vector, defined as p=mv, where momentum equals mass timesRead MoreDesign And Design Of A Green Building Fundementals 111066 Words   |  5 Pages â€Æ' TABLE OF CONTENTS DESIGN BRIEF 3 PASSIVE DESIGN FEATURES 3 ACHIEVING PLANNING REGULATIONS 7 GREEN BUILDING FUNDEMENTALS 11 Embodied Energy Assessment 11 Potable Water Conservation/ Recycling Features 12 Rain Water Harvesting 13 Operational Energy Conservation Strategies 15 STRUCTURAL DESIGN 16 Structural Design Philosophy 16 Critical/Preliminary Member Sizes 17 REFERENCES 20 HOUSE DRAWINGS 25 PD1 – INTERIOR LAYOUT DESIGN Read MoreConservation of Energy1736 Words   |  7 Pages#7 CONSERVATION OF ENERGY OBJECTIVE The purpose of this experiment is to calculate the gravitational potential energy through experimental values, to calculate the theoretical potential energy given the experimental kinetic energy in an isolated system while also using the kinetic energy to find the spring constant, and to compare kinetic energies and potential energies in an isolated system to see if they are equivalent. METHOD To calculate the gravitational potential energy throughRead MoreEssay on Renewable Energy1216 Words   |  5 PagesEnergy Energy is a crucial necessity and with the ever increasing need for it and the high and fluctuating prices of oil, researchers are constantly coming up with newer and more sophisticated alternative sources of energy. However, energy comes at a cost, as it is either expensive or it possesses high health risks. This essay presents the concept of energy by discussing the two major types of energy, the various forms it could take, including renewable sources of energy, energy conservation andRead MoreConservation Of Energy : Sam Perelman1516 Words   |  7 PagesConservation of energy – Sam Perelman Purpose: To investigate the gravitational potential energy, kinetic energy, and mechanical energy of the cart as it goes down the ramp. Hypothesis If energy is conserved then the cart will have the highest gravitational potential energy at the top of the ramp and the highest kinetic energy at the bottom of the ramp but have a consistent total energy throughout its journey. This is because the equation for Eg is Eg =mgh so when h=0 E=0 (this occurs at the bottom