PPT-Friction

Friction Friction is a force that opposes the motion or tendency of motion of an object Friction is primarily caused by the chemical bonding of molecules at the surfaces of objects in contact intermolecular forces which are electrical in nature. What do you Remember about Friction?. What do you Remember about Friction?. Friction opposes motion. Friction is dependent on the texture of the surfaces. Friction is dependent on normal force. motion. ME 225 ; PRINCIPLES OF TRIBOLOGY. PRESENTATION ON. SIDDAPPAJI .B. FRICTION. A force that resists the relative motion or tendency to such motion of two bodies in contact. . Friction always works in the direction opposite from the direction the object is moving, or trying to move. . Wedges . & Screws. ENGR B36 - Statics. Pat Aderhold. 11/24/2014. News & Notes. News & Notes. Today’s Agenda. More friction.... Wedges. Screws. Practice Problems on white board. Review / project time. Is F = . μ. N. What is Friction?. Resistive . force caused by two surfaces rubbing against each other. R. esists . an object's motion . - acts . opposite direction of motion . or "intended . motion. Relationship with normal force magnitude. Problem solving involving frictional forces. Lecture 7: Friction. Frictional forces. Frictional force . opposes . motion . or . impending motion relative to a surface. EQ: What changes an object’s motion?. Friction and Gravity. What happens when you jump on a sled on the side of a snow-covered hill?. What happens at the bottom of the hill?. Friction and Gravity. Why does the sled’s motion change on the side of the hill and then again at the bottom?. Friction. Unit 2 . Lesson 1. Friction. Friction is a part of everyday life, without it the world would be a very different place. Walking would not be possible, either would driving a car or playing sports. Even sitting on a stool would be difficult.. http://www.aplusphysics.com/courses/honors/dynamics/friction.html. Unit #3 Dynamics . Objectives and Learning Targets. Define friction and distinguish between static and kinetic friction.. Determine the coefficient of friction for two surfaces.. Notes!. Friction.   . Friction. is a force that o. pposes. motion between . two. surfaces that are touching and creates heat. Friction can be helpful or harmful depending upon the situation..  . Grade Science. What is it?. The force that slows motion between two surfaces that are in contact with each other.. Real life examples. . A baseball player diving into home plate.. Tires on a car can roll freely. What factors affect (the size of) friction?. Survey says:. Surface texture. Surface material. Surface area. Speed of slide. Mass. Weight. Angle of surface. Normal Force. What is the mathematical relationship between…... A. nswer 9/7/16. A hiker’s velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?. 4 Types of Friction. The 4 types of friction are: . Setting up and executing an experiment.. QPOE. 2. Question. Prediction. Evaluate. Observation. Explanation. Knowledge probe. What do you know about . the given question. Investigation plan. How will you investigate. . Chris Koralik. Kor-Pak Corporation. Impetus and Introduction . Every EOT Crane needs brakes. Several variables involved in brake selection and accurately specifying brake. Not all brakes are created equally.