PPT-Forces and Newton’s 3 Laws of Motion

Robert Strawn Compiled 101611 A force is any push or pull that one object exerts on another that causes a change in motion direction or shape The unit for force is the Newton N and is equal to . 1 = 8.85 32 = 283.22 63 = 557.60 94 = 831.97 125 = 1106.34 2 = 17.70 33 = 292.07 64 = 566.45 95 = 840.82 126 = 1115.19 3 = 26.55 34 = 300.93 65 = 575.30 96 = 849.67 127 = 1124.04 4 = 35.40 35 = 309.78 Chapter 2 Section 2 Review. A. . An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.. B. . Every action has an equal and opposite reaction. . To Cambridge University . sizar. in 1661 . Plague forced university to close – Newton goes home to . Woolsthorp. Annus. mirabilis of 1666. Calculus. Problem of the Moon. Dominated by Aristotle. Newton read Descartes, Galileo, . Forces act on you all the time. . If . you surf, you can feel many forces pushing and pulling you in different directions. . Gravity . always pulls you down, towards planet Earth. . This . force can be balanced by the support of the surfboard acting upwards. . Newton’s Laws. Isaac Newton. The man, myth, the legend…while you spend your time on Facebook, Newton spent his studying the behavior of objects in MOTION.. His conclusion…anything in motion is going to follow 1 of the 3 basic . Housekeeping. Newton’s . First Law of . Motion. Newton’s Second Law of . Motion. Newton’s Third Law of Motion. Glossary. Inertia. is the property of objects that makes them resist changes in their motion. So, the greater the mass of an object, the more inertia it has. For example, it takes a much . 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. . Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.. “To every action there is an equal and opposite reaction”. F(AB) = - F(BA). The most important chapter of physics EVAR. What is a Force?. A force is a push or a pull. Contact forces:. Boat pulling a water skier. Pushing a car with a dead battery. Noncontact forces:. Gravitational attraction of moon to earth. pairs. , one on . each object. in the pair. . The magnitudes of the forces in a pair are always ________, and the direction is . _____________. . (They do not cancel each other…because they are on . Force. - a . push. or . pull . A . Force . 1. gives. . energy . to objects. 2. causes a. . change . in motion, such as:. . Starting. Speeding Up. Changing Direction. Stopping. Slowing Down. (Note: all of these are forms of . Forces and Uniform Circular Motion Physics Unit 2 This Slideshow was developed to accompany the textbook OpenStax Physics Available for free at https:// openstaxcollege.org/textbooks/college-physics Dynamics I Forces & Newton’s First Law 4 Natural Forces Gravity : acts between all masses in the universe and has “infinite” range Electromagnetic (EM) Force : acts between electrically charged particles and “magnetically charged” poles . Review: Forces. What is a force? . Why do you think it’s important to learn about forces? What about gravity and friction?. How might an understanding of forces help you in your everyday life? .