Distance Sensor and Cube Crasher Lesson 3 Quiz

Which of the following best describes the Distance Sensor?

• It is a switch that can return a value of pressed or not pressed

• It is a sensor that uses a pulse of laser light to determined the distance from the front of the sensor to an object in front of it

• It is a sensor that can report the color of an object in front of it

• It is a sensor that can report the robot’s rotation on an axis

Which of the following is TRUE of how the Distance Sensor works?

• The sensor measures the time it takes for the pulse of light to travel to and from an object, and does a calculation to determine the distance

• The sensor calculates how far the robot travels, and reports that data

• The sensor can report the color of an object on the Brain screen

Which of the following is NOT a possible use of the Distance Sensor?

• To detect if a robot is near an object

• To report how far an object is from the sensor

• To report the relative size of an object

• To report if it is pressed or not pressed

What will the robot do when this project is run?

• The robot will drive forward for 200mm, and then turn right for 90 degrees

• The robot will drive forward and when the distance sensor detects an object, it will turn right for 45 degrees

• The robot will drive forward and when the distance sensor detects an object is less than 50mm away, it will turn right for 90 degrees

• The robot will drive forward and when the distance sensor detects an object, it will stop driving.

In this image of the Devices screen on the Brain, approximately how far is the object from the Distance Sensor?

• 90 mm

• 1000 mm

• 324 mm

• 10 mm

What will the robot do when this project is run?

• Drive forward 200mm and turn left 90 degrees

• Drive forward until the Bumper Switch is pressed, then stop driving

• Turn left 180 degrees

• Wait until the Bumper Switch is pressed, then start driving in reverse

Which of the following is a benefit of using a [Wait until] block in your project?

• The robot and obstacle’s position must stay the same in order for the project to work as intended

• The robot cannot use sensor data to detect an obstacle

• The obstacle location or position of the robot can change, and the same desired action will occur

Which of the following is the correct definition of a non-waiting block?

• Non-waiting blocks have the stack continue, even if the block’s behavior is not yet complete.

• Non-waiting blocks pause the rest of the stack until that block’s behavior is completed

• Non-waiting blocks cause the entire stack to restart

• Non-waiting blocks cause the stack to skip ahead to the last block

What values do boolean reporter blocks report?

• Boolean reporter blocks report a numerical value

• Boolean reporter blocks report a condition as UP or DOWN

• Boolean reporter blocks report a condition as TRUE or FALSE

• Boolean reporter blocks report the number of millimeters the robot has traveled.

What condition will the bumper switch report when it is pressed?

• TRUE

• FALSE

• It will not report a condition.