We spin and spin
moment of inertia
The resistence to a change of rotational motion, depending on the distribution of mass around a chosen axis of rotation.
A moment
the turning effect of a force around a particular point
torque
a measure of the force that can cause an object to rotate about an axi
pivot
a fixed point about which a body can rotate
you can only calculate a torque when it is
perpindicular to the force and distance from the axis