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SAI INTERNATIONAL SCHOOL


                                                       CLASS-IV

                                                  SUBJECT - SCIENCE


                                     CHAPTER 10-FORCE, WORK AND ENERGY

                                        SUB TOPIC-FORCE AND ITS EFFECTS

                                                        HGGJVJJJK
                                                   FORCE






                    MOVE AN           STOP A              CHANGE THE              CHANGE THE

                    OBJECT            MOVING              SH  APE OF AN           DIRECTION OF A
                                      OBJECT              OBJECT                  MOVING OBJECT




               NOTES:


                   •  The action of pulling or pushing to move or change an object is
                       called force.

                   •  Force can cause the following effects:
                       1. MOVE THE OBJECT: We move a ball from its place by kicking

                          it with force.
                       2. STOP A MOVING OBJECT: We can hold the hands of a
                          drummer toy to stop it.

                       3. CHANGE THE SHAPE OF AN OBJECT: We knead dough into a
                          ball and then roll it into flattened chapatis.

                       4. CHANGE THE DIRECTION OF A MOVING OBJECT: We can
                          change the direction of the hands of a clock by pushing them
                          in the opposite direction.
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