Page 28 - Science Course 2 (Book 2)
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Mo8-L3a:     What is Newton’s Second Law of Motion?




                       Key Concept                                          SUMMARY
                                                                What is Newton’s Second Law of Motion?
             What is Newton’s Second Law of Motion?
                                                            Unbalanced forces cause an object to speed
          How does centripetal force affect circular motion?     up, slow down, or change direction.



















                                                              Newton’s second law of motion relates an
                                                             objects acceleration to its mass and the net
        A satellite is an object that orbits a larger object.            force on the object.

        A satellite tends to move along a straight path
        because of inertia.

        Gravity is the centripetal force that keeps a satellite
        in orbit by changing its direction.










                                                                  Any motion in which an object is
                                                                   moving along a curved path is
                                                                           circular motion.


































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