PPT-Friction: A Force That Opposes Motion

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.. 2. Objectives. . 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 . Give me another instance when on its own an object stopped moving.. Carrom. coins. Activity of two students to show opposing forces.. An opposing force always opposes ___________. In a rolling object motion is opposed therefore . By Mr. V. Calzada & Mrs. swanson. Vocabulary. force. f. riction. m. agnetism. gravitation. Vocabulary. A . force. is any push or pull that causes an object to move, stop, or change direction. . Use Newton’s . 1st. law for bodies in equilibrium (. statics. ). Use Newton’s . 2nd. law for accelerating bodies (. dynamics. ). Study types of . friction. & fluid . resistance. Solve . circular. Forces. Forces. Forces have . Magnitude . and . Direction. . We represent these in diagrams with arrows. . Larger the force the bigger the arrow. . 50N in Each direction. Forces and Motion. When we look at a diagram we can figure out the sum of forces. . What causes an object to start moving, stop moving, or change direction?. UNBANLANCED FORCE. What is a force?. A push or pull. A force is described by strength and direction. The strength of a force is measured in the Newton (N). 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. Frame of reference- . a system of objects that are not moving with respect to another.. Also called a . Point of Reference. - Describing and Measuring Motion. Describing Motion. Whether or not an object is in motion depends on the reference point you choose. . 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. The amount of friction depends on...... Surface Roughness. Forces pushing the two surfaces together.. Types of Friction. https://app.discoveryeducation.com/player/view/assetGuid/72E28A59-0EAB-4EC9-A097-365513460023. 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..