Page 96 - York Global Science 6 - Physical Science
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Let’s Review


                    Competencies: ‘I can…’                       Questions



                    I can calculate the speed of an              1  What formula is used to
                    object.                                         calculate speed?


                    I can explain what a distance-time           2  What does a horizontal line on a
                    graph shows.                                    distance-time graph mean?



                    I can explain relative motion.               3  What is relative motion?


                    I can calculate relative speeds.             4  If you are driving in a car at 60
                                                                    km/h and a lorry passes you

                                                                    at 80 km/h, what is the relative
                                                                    speed of the lorry to the car?


                    I can say what forces are.                   5  What is a force?



                    I can use force arrows to show the           6  What happens if an object has
                    difference between balanced and                 unbalanced forces acting on it?
                    unbalanced forces, and explain
                    how they affect objects.


                    I can explain the difference                 7  What is a non-contact force, and

                    between contact and non-contact                 how is this different to a contact
                    forces.                                         force?


                    I can explain how gravity works.             8  What effect does gravity have
                                                                    on objects, and why is the force

                                                                    exerted by gravity different for
                                                                    different objects?


                    I can explain the difference                 9  What is mass?
                    between mass and weight.                     10 What is weight?













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