Question

question #8

1. why is the ultrasonic sensor important for object detection, if the robot can already detect objects with the touch sensor? / ¿por qué es importante el sensor ultrasónico para la detección de objetos, si el robot ya puede detectar objetos con el sensor táctil?

• 1 point

the ultrasonic sensor is a backup sensor that is only used when the touch sensor is broken./ el sensor ultrasónico es un sensor de respaldo que solo se utiliza cuando el sensor táctil está roto.
the ultrasonic sensor can detect objects from a distance, and the touch sensor cannot./ el sensor ultrasónico puede detectar objetos a distancia y el sensor táctil no puede.
the ultrasonic sensor can detect the colors of objects, and the touch sensor cannot./ el sensor ultrasónico puede detectar los colores de los objetos y el sensor táctil no puede.
the ultrasonic sensor can detect the shapes of the objects, and the touch sensor cannot./ el sensor ultrasónico puede detectar las formas de los objetos y el sensor táctil no puede.

Explanation:

To determine the correct answer, we analyze each option:

• Option 1: Ultrasonic sensors are not just backups; they have a distinct function (distance detection), so this is incorrect.
• Option 2: Ultrasonic sensors work by emitting sound waves and measuring the time for them to bounce back, allowing distance - based object detection (from afar). Touch sensors need physical contact, so they can't detect objects from a distance. This matches the actual functionality.
• Option 3: Ultrasonic sensors do not detect color; color detection is typically done by color sensors, so this is wrong.
• Option 4: Ultrasonic sensors do not detect the shape of objects; they detect distance. Shape detection would require other methods (like vision - based or more complex tactile analysis), so this is incorrect.

Answer:

The ultrasonic sensor can detect objects from a distance, and the touch sensor cannot./ El sensor ultrasónico puede detectar objetos a distancia y el sensor táctil no puede.