I'm struggling with the concept of torque as I read more I get further confused. I read some sources and they say torque and moments are interchangeable, yet other sources make a specific effort to keep the two separate. So question one is , what is the difference between torque and a moment ? The formula for torque...so far I have come across τ= r ×F, but also τ = I ×angular acceleration. I'm unsure which I should be using, and if both, which circumstances determine you to use which. My overall confusion though is what is torque? So moment of inertia is the resistance to the force being applied. So is torque the amount of force I need to apply to rotate an object ? or is it the amount of rotational force a force can put on a body ? what is a Nm (Newton meter) how would one see a Newton meter, I presume its not a rate or ratio. thanks for any help.