Question 26
In this investigation, place a sturdy plank (1–2 metres long) on a fulcrum so it is evenly balanced. Mark evenly spaced points on each side using a metre stick or tape measure. Use weights of known weight. Work in groups.
Begin with the seesaw re-balanced. Keep the positions of the weights unchanged. Replace one weight with a heavier or lighter weight and note what happens. Were your predictions correct?
Begin with the seesaw re-balanced. Keep the positions of the weights unchanged. Replace one weight with a heavier or lighter weight and note what happens. Were your predictions correct?
