Rotational motion - vocab

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