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| The Nature of Forces Chapter 2 Notes Section 2-2 Page 2 |
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| 2-2 Friction: A Force Opposing Motion Objectives: -Define Friction -Explain how friction affects motion -Identify the 3 types of friction Vocabulary: Friction- Force that acts in the opposite direction of motion, will cause an object to slow down and finally stop. - The amount of friction between two surfaces depends on how hard the surfaces are forced together and on the materials of which surfaces are made. - The force you exert to move an object is in one direction. The force of friction is in the opposite direction. TYPES OF FRICTION: - Sliding Friction: When solid objects slide over each other. - Rolling Friction: Produced by objects that have wheels or ball bearings, less friction than sliding. - Fluid Friction: When objects move across or through fluids, less friction than sliding or rolling. - Friction is not always troublesome, it often can be very helpful since it causes some friction between objects. END OF SECTION 2-2 NOTES |
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