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1.5 Forces

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Question 78

A student wants to find the position of the centre of gravity of an irregularly shaped flat sheet of cardboard. The following equipment is available to the student:

  • Clamp and stand
  • Pin
  • Plumb line (weight on a thin string)
  • Pencil and ruler
  • Electronic balance

Which piece of equipment is not needed for this experiment?

A

Electronic balance

B

Pin

C

Plumb line (weight on a thin string)

D

Pencil and ruler

Markscheme

1.5 Forces Questions

  1. IGCSE
  2. /Physics
  3. /1.5 Forces

245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.

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