Touch Sensor and Ultrasonic Sensor

Why are sensors important to robots?

• They allow multiple commands to run in order

• They give the robot information about its surroundings

• They allow robots to repeat similar tasks

• All of the above

What is the advantage of Sensor Control over the Basic Movement Commands?

• The robot can use little to no battery power.

• The robot can levitate if enough sensors are used.

• The robot can react to its environment.

• There is no big advantage.

Which sensor capable of detecting how far or near it is from an object/obstacle?

• Touch Sensor

• Ultrasonic Sensor

• Gyro Sensor

• Color Sensor

What does the wait-Sensor block allow you to do?

• Allow the robot to keep doing what it was doing until what the command is set to wait for has happened

• Force the robot to stop until what the command is set to wait for has happened

• Wait for an until command block to be processed before moving on

• Wait is not a valid name for a command

What will the robot do based on the program?

• The robot will move forward until the Ultrasonic Sensor is 10 inches near an object, then the robot will stop.

• The robot will move forward until the Ultrasonic Sensor is 10 cm near an object, then the robot will stop.

• The robot will move forward until the Ultrasonic Sensor is 10 cm away from an object, then the robot will stop.

• The robot will move forward until the Ultrasonic Sensor is 10 inches away from an object, then the robot will stop.

What will the robot do based on the program?

• The robot will move forward for 1 rotation.

• The robot will move forward while waiting for the Touch Sensor to be pressed.

• The robot will move forward while waiting for the Touch Sensor to be released.

• The robot will move forward while waiting for the Sonar Sensor to bump an object.

What are threshold values accepted by the Touch Sensor?

• 1, 2, 3

• 2,3,4

• 0, 1, 3

• 0, 1, 2

What are the two (2) units of measurement of Distance Sensor?

• kilometers and inches

• kilometers and centimeters

• centimeters and inches

• inches and meters

Why does the Ultrasonic Sensor
have two openings in the front ?

• One opening is for sending out the sound waves and One opening is for receiving the returning sound waves
• It is necessary for the robot to see where it is going
• A bat has two eyes to see better so the robot needs two eyes as well
• Just for decoration purposes.

For our program we will use a wait for block that will tell the robot to stop when it comes within a set amount of cm, why is this better than a touch sensor?

• The robot actually detects an object before running into it.
• A touch sensor is better because the robot doesn't have to guess how far away an object is located.