Examlex
Which of the following groups is the most likely to watch a television program, talk on the phone, eat, read a magazine, and play with a pet simultaneously?
Pawl
A mechanical component that engages with another component to prevent motion in one direction, or to drive a mechanism intermittently.
Center
The point that is equally distant from all points on the circumference of a circle or the surface of a sphere; in geometry, it's the midpoint of any shape or object.
Balancing Point
The point at which an object is in perfect equilibrium under the influence of gravity and does not tip or rotate.
Lever
A rigid bar resting on a pivot point (fulcrum), used to transmit force and movement, exemplifying the principle of mechanical advantage.
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