Page 109 - SK Year 6 Science DLP
P. 109

FORCE
                                                                                    FORCE
                                                                                    DAYA

                      Observe the movement of the carrom         The direction of the frictional
                      striker again. Do you know the             force is opposite to the
                      direction of the frictional force?         movement of the carrom striker.

                                                                                 direction of motion
                                                                                 of carrom striker


                                                                                direction of frictional force



                      A frictional force often opposes the direction of a moving object.

                      A frictional force can also cause a
                      moving object to slow down and finally        No wonder this carrom
                      stop.
                                                                    striker slowed down and
                                                                    finally stopped.


                                        Try to give examples of daily
                                        activities that involve frictional
                                        force.


                                                    Q

                                            Choose the correct statements on frictional force.
                                           •  A frictional force occurs when two surfaces are in contact.
                                           •  A frictional force moves parallel with the direction of motion of
                                               an object.
                                           •  A frictional force often opposes the direction of motion of an object.
                                           •  A frictional force causes a moving object to slow down and
                                               finally stop.



                                          Identify the two surfaces that are in contact which
                                          cause frictional force in the following situations.















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