Questions on Moments
Q7.The diagram shows the girl and her father on a see-saw.
(i) Calculate the moment of the girl. Show clearly how you work out your answer.
(3 marks)
(ii) What must her father do to increase his moment?
(1 mark)
(b) Five people take it in turns to sit on a see-saw.
The table gives the weight of each person.
| Person |
weight/ N |
| Jack |
510 |
| Ellie |
540 |
| Rosie |
490 |
| Maggy |
540 |
| Andy |
560 |
(a) Andy sits at one end, but there is nobody on the other end.
In which direction does his end of the see-saw move?
(1 mark)
(b) Which two people in the table above could make the see-saw balance?
(1 mark)
(c) Rosie sits on end A, and Jack sits on end B.
They lift their feet. Describe what happens to each end of the see-saw.
(1 mark)
(d) Ellie sits on end A, and another of the group sits on end B. Ellie's end stays down. Who could be on end B?
(1 mark)
(Total 8 marks)
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