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Describe how you could determine the centre of gravity of an irregularly shaped piece of card using the edge of the ruler instead of the plumb-line method above

Presentation/ powerpoint

1 The centre of gravity of a metre rule is found to be at its 48.3 cm mark. Suggest Why it is not at the 50.0 cm mark. (1 mark)

2 Use diagrams to show the centre of mass of foctIon a a flat circular plate;

  • a flat circular plate; (1 mark)
  • a rectangular table; (1 mark)
  • a triangular card. (1 mark)

3 Describe how you could determine the centre of gravity of an irregularly shaped piece of card using the edge of the ruler instead of the plumb-line method above.  (4 marks)

4 Explain why the centre of gravity for a table-tennis ball is in the empty space inside the ball, rather than in the plastic cf ball itself.

5 Suggest how you can locate the centre of mass of in space where there is no detectable gravitation:,  (4, marks)

 

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