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Question                                             Answer                          Marks                     Further Information

             9(a)                             When he opens the door he uses a pulling               1      both correct for 1 mark
                                              force.

                                              When he closes the door he uses a pushing
                                              force.

             9(b)                                        add carpet under the door                   1      more than one answer circled = 0 marks


                                                           add oil to the door

                                                            make the door bigger

                                                           make the door heavier

                                                        put a mat in front of the door

















             © UCLES 2018                                                       Page 8 of 16
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