Use the number weights to find different ways of balancing the equaliser.
Can you hang weights in the right place to make the equaliser balance?
Can you work out how to balance this equaliser? You can put more than one weight on a hook.
If you have only four weights, where could you place them in order to balance this equaliser?
Can you work out what is wrong with the cogs on a UK 2 pound coin?
What happens when you turn these cogs? Investigate the differences between turning two cogs of different sizes and two cogs which are the same.