What is the principle of moments? - BBC Bitesize GCSE Physics

Everything PIVOTS on whether our contestants can work out the principle of moments in time - otherwise, their chance of winning an amazing prize will be sleeping with the fishes! Steady up! Keeping them level-headed as always is the well-positioned Dr Rula and our teetering-towards-another-TV-channel-deal host of Extreme Physics, Isaac Neutron! And remember... if it ain't fun, it ain't physics!
This is part of the Physics section of BBC Bitesize GCSE level. For more Bitesize content head to bbc.co.uk/bitesize