Ultrasonic & Touch Sensor

Moving around the house can be dangerous, night lights are helpful but if for some reason your LED nightlight was off which sensor would be most helpful for a robot you programmed to get a snack from the refrigerator? Think about which sensor this quiz is about although you could any of these sensors with the right program.

• Ultrasound
• Touch
• Light
• Gyro

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.

Sensors can be plugged into the following ports.

• A,B,C
• 1,2,3,4
• A,B,C,1,2,3,4
• B,C 

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.

Why might the Distance Sensor be preferred over Touch Sensors for detecting walls and obstacles?

• Hitting a wall could damage the wall

• Hitting a wall could damage the robot

• It is quicker to detect obstacles at a distance

• All of the above

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

• Ultrasonic Sensor
• Touch Sensor
• Color Sensor
• Medium Motor