PPT-Friction Force 12-1 Learning Objectives

I can explain what causes friction and how it affects the motion of an object I can identify and describe the four types of friction I can give examples of the four types of friction Forces Friction. 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. . Mr. McMartin. Beta Pod Science. While playing ball, your friend throws the ball out of your reach. Rather than running for the ball, you walk after it. You know that the ball will stop. But do you know why?. Friction. Friction is a force that opposes the motion, or tendency of motion, of an object.. Friction is caused . mostly by . the . electromagnetic . interactions of particles within molecules at the surfaces of objects in contact. While these interactions can be rather complex, their combined effects can be reasonably approximated with a decent amount of consistency.. 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. Physics 6A. Prepared by Vince Zaccone. For Campus Learning Assistance Services at UCSB. Friction is a force that opposes the motion of surfaces that are in contact with each other.. We will consider 2 types of friction in this class:. A force that opposes motion between two surfaces that are in contact.. Causes a moving object, such as a ball, to slow down and stop.. Occurs because the surface of any object is rough (microscopic hills and valleys). 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..  . In-Class Activities. :. Check Homework, if any. Reading Quiz. Applications. . Characteristics of Dry Friction. . Problems Involving Dry Friction. Concept Quiz. Group Problem Solving. Attention Quiz. 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…... 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…... . Students must be able to. Utilize theory of dry friction. Describe . theory of dry friction. . Describe . physical meanings. of frictional effects. Describe and differentiate between . static and kinetic coefficients of friction. gawas. . . Sonam. . gosavi. Neekita. . Bhowar. . FRICTION. Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.. 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. friction. What do you Remember about Friction?. 1. STATICS. (ENGINEERING MECHANICS-I). بسم الله الرحمن الرحيم. Friction. Friction is a force that resists the movement of two contacting surfaces that slide relative to one another..