Turning effect of forces

1 Describe the moment of a force as a measure of its turning effect and give everyday examples

2 Define the moment of a force as $\text{moment} = \text{force} \times \text{perpendicular distance from the pivot}$; recall and use this equation

3 Apply the principle of moments to situations with one force each side of the pivot, including balancing of a beam

4 State that, when there is no resultant force and no resultant moment, an object is in equilibrium