In controlling robot motion, the two key objectives are to control speed and distance.

• A. True
• B. False
• C. Position and orientation
• D. Power and torque

Answer: (A)

The essential idea in robot motion control is to manage how fast the robot moves and how far it is from its target. Controlling speed shapes the dynamic response—how quickly you accelerate, decelerate, and how smooth the motion is—affecting tracking accuracy and energy use. Controlling distance, or the distance to the goal, provides the corrective signal that guides you toward the target, ensuring you reduce error over time and arrive where you intend. Together, speed and distance capture both the dynamic behavior and the geometric progress of moving toward a goal.

The other notions describe either the robot’s current state or the capabilities of the actuators rather than the objectives you actively optimize. Position and orientation are the actual pose of the robot (where it is and how it’s facing), while power and torque are what you can apply to the motors. They’re important, but they’re not the stated goals you’re controlling to in this context.