# Friction

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The lab that was conducted in class throughout this whole week was basically to find one suitable objective and that was to determine the friction of four surfaces. It consisted of multiple trials of pulling on a block that was measured at .118 kg, for each specific trial that was conducted. For the block, weights were added on top to determine the friction and how it was affected towards the tension and feel of multiple surfaces that the lab was primarily trying to accomplish. The multiple surfaces were cardboard, sandpaper, rubber and cork. My hypothesis experimented that the block of wood had many factors that determine the friction of the four surfaces would be the material, normal force and that static friction is way greater than kinetic…

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Problem: Is there a relationship between the mass of an object and the force of static friction and force of kinetic friction of that object? If so, what type of relationship is there? Background: Friction is a type of force that is created when two surfaces move across one another. Static friction is friction between two or more solid objects that are not moving relative to one another. Kinetic friction is the amount of friction between two objects that are moving relative to each other.…

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Purpose: To study sliding friction and to determine the coefficients of static and kinetic friction. Theory: Friction is a force that opposes motion. Static friction prevents an objects being set into motion by an external force. Kinetic friction opposes the progress of a sliding object. Static friction is given by Fs< usn where N is the normal force between the object and its support surface and us is the coefficient of static friction. There-fore, the coefficient of static friction is…

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Friction is a crucial phenomenon in metal cutting which is very complex to model. It has a significant effect on the amount of power required for removing a given volume of metal, surface quality of the finished product, and the extent of tool wear. However, many studies assume no friction in the metal cutting process due to lack of experimental techniques to directly measure the coefficient of friction. Sticking and sliding regions are the two contact regions along the tool-chip interface. A…

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Measurement of Static and Kinetic Friction Forces between Wood and a Table Purpose: In this experiment, a spring scale will help calculate the static friction and kinetic friction between a wooden block and table. Several factors impact the amounts of friction, and this experiment examines the factors and how they impact the sliding of the wooden blocks. Surface area of the blocks affect the friction, and the contact between the different surfaces varies for different objects and weights.…

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2) Does the surface area of contact between two surfaces affect the frictional force? 3) Does the type of surface (carpet vs. hard/smooth surface) affect sliding friction? 4) Does the force between two objects (weight) affect sliding friction? While doing this lab, we were able to answer the given questions and we were able to check if our hypotheses were correct. We didn’t run into many problems, so our data is mostly accurate, in our opinion. In order to finish these…

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Experiment 37: Friction Anne Smolinski as910513@ohio.edu Wednesday 11:50-1:40 TA: Sanjoy Sarkar November 11, 2017 Experiment 37: Technical Report ABSTRACT In experiment 37, the friction force is being explained and tested by using a block that is being pulled across a wooden base. Out of the four different types of friction, two will be tested during this experiment: (i) static and (ii) kinetic. Static friction can be defined as the force that resists motion of an object to a surface so…

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The purpose of this lab is to evaluate the relationship between kinetic friction coefficient and static coefficient as well as measure the coefficients of the two friction. Friction is the force that resists relative tangential movement. Its direction is opposite to the relative velocity. Kinetic friction and static friction are two types of friction. Static Friction happens when the two surface in contact remains relatively stationary to each other. It reaches its maximum value before the…

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types of friction that can affect the performance of my vehicle; the static friction and the kinetic friction. The friction occurs between the wheels of the car and the surface it rolls upon. I encountered a problem regarding the lightness of my vehicle. I initially used a foam base but it was too light and had little air resistance, so I switched to a heavier material that resisted the air more. I chose to incorporate four wheels upon my design because I believed it would highly balance my car…

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microscopic friction” it explains the different research done on students to see how their mental model of microscopic friction varies. For the first task, when students were asked what a specific surface would look like at different scales, mostly all of the students knew that it would zoom in to the atomic level. Even though they knew this, they didn’t know at what length scale that would occur (Corpuz, Rebello 4). Later in the studies, student’s knowledge of friction was tested. They were…

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