What terminology do I need to make sure I use for Moments in Paper 2?

Start the question stating what you are going to do e.g. Take moments about A. Make sure you have a clear diagram and each point is labelled. Then take moments and anti-clockwise and set the two equal to each other if the system is in equilibrium.

Heya Robert! When a moments question comes up, ensure you write exactly what you're doing. A good example of this is stating 'taking moments anticlockwise about Point A', and then writing 'taking moments clockwise about Point A'. Later on in the working out, you can also safely write 'Anticlockwise moments = clockwise moments'

Terminology for Moments. There can be lots terminology that can be used, Im assuming it's pure 2 as your enquiry is in regards to paper 2, so it highly be likely to involve friction. Usual questions can be something to do with finding out if the friction will be sufficient enough to hold an object on a plane for instance once a supporting /external force is removed, in this application I would say working out will be your best friend as well as explaining your steps. When it comes to mechanics always apply the line rule in your working out to ensure its nice and clear for your teacher, examiner and yourself to look back on, to spot any potential mistakes :)

You should know the principle of moments ( which states that when a beam is in equilibrium under the action of several forces, the sum of all the clockwise moments must be equal to the sum of all the anticlockwise moments about a turning point (pivot) )

Sum of anticlockwise moments = sum of clockwise moments.

You must remember the definition of a moment: the Moment, measured in Nm, is equal to the Force applied, F, (N) multiplied by the perpendicular distance, d, from the axis of rotation and the line of action of the force.

Always state the principle of the sum of moments - for an object in equilibrium, the clockwise and anticlockwise moments are equal.

Make sure to to notice how the rod, or beam, ect is described in question - is it massless? If it has mass, is it uniformly distributed? Is it rigid?

Always be looking out for forces not perpendicular to the direction of rotation, you might have to use trigonometry here.