Friction Peter Jeschofnig‚ Ph.D. Version 42-0262-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information
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Coefficients of Friction Discussion: Friction is the force that resists motion and can be determined in either static situations or kinetic situations using the following equation: [pic] Static friction is the amount of friction that resists the start of motion and kinetic friction resists an object’s continued motion. The coefficient of friction depends on a number of factors including surface area and the types of surfaces in contact. The only way to determine a coefficient of friction is experimentally
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Coefficient of Friction- Post Lab Abstract The purpose of the experiment was to determine to coefficient of friction on a block sliding across a horizontal plane‚ and on the same block sliding down an inclined plane. This was done by first testing block‚ and how much weight on a string was needed to move the block at a constant velocity using a pulley system. The block weighed 0.2385 kilograms‚ and needed a hanging mass of 0.05 kg to move at a constant velocity. This means the coefficient of
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have chosen to talk to you about friction. Friction is the force between two objects in contact with each other‚ making it a contact force. It causes moving objects to slow down. Air resistance is a type of friction. Friction is an important force in our lives. We rely on friction in many ways. An athlete usually wears shoes which provide him/her with a greater friction between the shoe and the surface. We rely on friction as an important aspect of motion. Friction can be a very useful force because
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A1 Studying force of friction Objective To investigate the effect on friction of the following factors: 1. normal force that presses the two surfaces together 2. materials that the two surfaces are made of 3. area in contact of the two surfaces Apparatus Rectangular wooden block Wooden plank Glass plate Plastic plate String Scissors Jack Spring balance Electronic balance Half-meter rule Retort stand and clamp G-clamp Trolley[pic]2 Standard weights (100g)[pic]5 Theory
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and Kinetic Friction Introduction The amount of friction force between two surfaces in contact depends on the type of the surfaces in contact and the amount of compression between the surfaces. Static friction is the force that is acting against your force before the object begins to move. If you exert a small push on the box‚ the box will not move because static friction is directly opposite to the push. If you apply a greater force than the static friction force‚ the friction increases to
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Experiment 4: Friction Laboratory Report Anna Rucelli Ignacio Michael Giorgio Lapus Ted William Lardizabal Janell Leica Lee Department of Occupational Therapy College of Reabilitation Sciences‚ University of Santo Tomas España‚ Manila Philippines Abstract The experiment verifies the laws of friction with the use of a spring scale‚ a block of wood‚ its different surfaces and the different surfaces of other objects. Another part of the experiment uses the palms of the hands to produce
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Static Friction INTRODUCTION When an object is placed on a surface it will remain static unless the resolved component of the force due to gravity acting parallel to the surface exceeds the friction force associated with the static coefficient of friction between surfaces by placing various objects on a surface and tilting the surface until the object begins to slip. By measuring the angle at which the object begins to slip‚ it is then possible to calculate the coefficient of friction between
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Friction Friction – It is an opposing force that acts between surfaces in contact moving with respect to each other. It always opposes relative motion between two surfaces. Cause of friction - Friction is cause by the irregularities on the two surfaces in contact. We are able to walk because of the force of friction Nature of surfaces – Smooth surfaces: less friction‚ Rough surfaces: greater friction How hard an object is pressed – Greater pressing force: Greater friction Mass of object
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Life Without Friction By: Anthony Cacciato Life without friction would be dangerous. There would be things flying all around and no one would be safe from an airborne bicycle. You would not even be able to stand on your feet. You would not be able to eat or drink. Life with no friction would be deadly. Nothing would be able to sustain life without friction. We would all die if out of the blue friction went away. There are four kinds of friction and they all help us go throughout our daily lives;
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