Sound sensors rely on ____ to convert sound to electrical energy.

The fingers of mechanical finger grippers move in a ____ motion to grasp an object.

To produce a ruby laser beam, ______________________________ travel along the axis of the ruby rod and are reflected by mirrors on each end, which amplifies the light.

A remote center compliance device is installed in the ____ of a robot to help compensate for workpiece misalignment or irregularities.

An intelligent robot uses ____ to detect changes in the work environment.

As pressure is applied to air, its volume ______________________________.

The categories of opto-electronic devices include ____.

The rotary motion of shafts, gears, and pulleys is measured by ____ sensors.

In fluid power systems, friction is called ____.

What is the primary focus of public relations (PR)?