Which device would you use to physically move or control a mechanism in a system?

Which device would you use to physically move or control a mechanism in a system?

• A. Actuator
• B. Sensor
• C. Processor
• D. Battery

Answer: (A)

An actuator is the component that produces physical movement or applies force to a mechanism. It takes energy and converts it into motion, allowing parts like valves, gears, or robotic joints to move. That’s why it’s the correct choice for moving or controlling a mechanism. A sensor only detects changes and reports data, a processor runs the control logic, and a battery supplies power but doesn’t itself move anything.

An actuator is the component that produces physical movement or applies force to a mechanism. It takes energy and converts it into motion, allowing parts like valves, gears, or robotic joints to move. That’s why it’s the correct choice for moving or controlling a mechanism. A sensor only detects changes and reports data, a processor runs the control logic, and a battery supplies power but doesn’t itself move anything.