The support, or point of rest, on which a lever turns in moving a body.

Any rigid structural member projecting from a vertical support

Anything put in or on something for conveyance or transportation; freight; cargo

Catapult, mechanism for forcefully propelling stones, spears, or other projectiles, in use mainly as a military weapon since ancient times

The state of being stretched or strained.

The strength or power exerted upon an object.

The twisting of a body by two equal and opposite torques.

The time rate of change of position of a body in a specified direction.

The surface resistance to relative motion, as of a body sliding or rolling.

A stored energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system.

The ratio of output force to the input force applied to a mechanism.

The state or quality of being efficient, or able to accomplish something with the least waste of time and effort; competency in performance.