problem Lunar leaper Age 16 to 18 Challenge level Gravity on the Moon is about 1/6th that on the Earth. A pole-vaulter 2 metres tall can clear a 5 metres pole on the Earth. How high a pole could he clear on the Moon?
problem Whirlyball Age 16 to 18 Challenge level Whirl a conker around in a horizontal circle on a piece of string. What is the smallest angular speed with which it can whirl?
problem Bridge builder Age 16 to 18 Challenge level In this short problem we investigate the tensions and compressions in a framework made from springs and ropes.
problem More bridge building Age 16 to 18 Challenge level Which parts of these framework bridges are in tension and which parts are in compression?
problem Cannon balls Age 16 to 18 Challenge level How high will a ball taking a million seconds to fall travel?
problem Building up friction Age 16 to 18 Challenge level A series of activities to build up intuition on the mathematics of friction.
problem Baked bean cans Age 5 to 7 Challenge level Is there a best way to stack cans? What do different supermarkets do? How high can you safely stack the cans?
problem Uniformly unstable Age 16 to 18 Challenge level Invent shapes with different numbers of stable and unstable equilibrium points
problem Little little g Age 16 to 18 Challenge level See how little g and your weight varies around the world. Did this variation help Bob Beamon to long-jumping succes in 1968?
list Fundamental particles collection Age 16 to 18 Challenge level A collection of problems related to the mathematics of fundamental physics.