Friction

Research Question How is the coefficient of friction between two surfaces related to the deceleration of an object? Introduction Besides for the fact that friction is a drag (pun intended), humans have utilised this motion opposing force, to its greatest potential. One of the most prevalent things, though generally perceived as overused, the automobile, could be considered the epitome of friction utilization. The principles of friction applies to everything, especially that to that of a car 's

The hypothesis tested in this experiment was, “If the surface material is more roughly textured, than the amount of sliding friction will increase.” This hypothesis was supported by the experiment in all nine trials. In the experiment, it was evident that when a material is rougher, there is more sliding friction. When testing the smoothest material, masonite, it only took an average of 4.6 washers to have to block move significantly across the surface. When testing the in-between material, the cloth

There are two types of friction. They are static friction and kinetic friction. Static friction is the friction you have to overcome to make an object move and kinetic friction is friction that is happening while an object is in motion. An example of static friction is like trying to push a car down the road. It is harder to push from a stop than from a roll. An example of kinetic energy is like your tires on the pavement while you are driving down the road. First, I want to explain how the

experiment, frictional resistance, friction is studied. Friction is the force that is parallel to the surface and goes against the force of motion. Friction is dependent on the material of the two surfaces acting upon each other. Two types of friction were observed. Kinetic friction is the friction of two surfaces in motion. Static friction is the friction that must be overcome in order for an object to be in motion. Static friction will always be greater than kinetic friction because it requires more force

Friction and Dynamics of Rock Avalanches Travelling on Glaciers Rationale The study of rock avalanches travelling on glaciers or glaciated areas has centred around interpreting data collected from case studies throughout history. Looking at this data can confirm that, in general, rock avalanches travelling on glaciers have a reduced coefficient of friction compared to rock on rock avalanches. The decreased resistance contributes to a higher velocity and further distance travelled. The

wood and aluminum surfaces and their friction. The coefficient of static and kinetic friction can be derived from the experiments with the use of a horizontal Atwood’s machine and a Super Pulley. The static friction was tested by setting up an equilibrium with the hanging mass and the frictional force. Three tests were conducted with increasing additional mass on the friction block. An unbalanced force was required to test for the coefficient of kinetic friction. This is possible through solving for

Introduction Friction is a force that is directed against the direction of motion. It usually acts to slow down the moving object. In some occasions, this force can be useful such as in the case where vehicles are making turns. In these cases, the frictional forces provide the needed force to stay on the track. In this experiment, we used a force sensor and a computer to determine the friction of a sliding block with and without different masses on it. Procedure Description of setup We connected

coefficient of static friction and the coefficient of kinetic friction for a block of wood, and how do these coefficients compare with each other? From the ‘Results’ section above, as the roughness of a surface increases, the coefficients of friction for the block of wood increases. This can be concluded as the surfaces used in order of lowest roughness to highest roughness were the white surface, wooden surface and lastly the sandpaper surface had coefficients of friction increasing in the same

College Physical Science Practical Investigation: Friction Completed by James Jenkinson Grade 11I Task completed on the 11th of May 2014 Table of Contents 1. Research Proposal Page: 1.1) Aim 3 1.2) Hypothesis 3 2. Scientific Investigative Report 2.1) Aim 3 2.2) Apparatus 3 2.3) Calculating Coefficients of friction 4 2.4) Calculations of different forces that will affect friction 4 2.5) Variables 5 2.6) Method 6 2.7) Results

Title Page: Friction Lab Satwinder Singh 3/27/17 Physics 411 Abstract The purpose of this experiment was to investigate the kinetic and static friction coefficient of a friction forces acting on a wooden block by increasing the mass in each experiment. Each experiment was attempted to find the relationship between the friction force and the normal forces on the wooden block as it being slid horizontally maintaining a uniform motion by a spring scale. Every experiment was documented and finally