VexVR Detecting Walls From a Distance

True or False: The Distance Sensor reports the total distance the VR Robot travels.

• True

• False

True or False: The Distance Sensor determines distance by using the time it takes for ultrasonic waves to bounce off of an object and return to the sensor.

• True

• False

Which block reports if the Distance Sensor has found an object?

• <Pressing bumper> block.

• (Distance from) block.

• <Distance found object> block.

• <Color near object> block.

True or False: The (Distance from) block reports the distance of the nearest object in meters and inches.

• True

• False

Which of the following is an advantage to using the Distance Sensor in a VEXcode VR project?

• To complete a maze without continuously bumping into the walls.

• To pick up and drop metal disks with metal cores.

• To navigate to specific coordinates of the Playground.

• To detect the color of an object.

Which of the following blocks is a Boolean block that reports if the first value is larger than the second value?

• <Less than> block.

• <Greater than> block.

• (Random) block.

• <And> block.

Which of the following blocks is a Boolean block that reports if the first value is less than the second value?

• (Round) block.

• <Or> block.

• <Greater than> block.

• <Less than> block.

What value does a <Greater than> block report while inside of a [Wait until] block?

• The distance to the nearest object.

• A TRUE or FALSE value.

• The total time needed to run the project.

• The total time the VR Robot has until it reaches an object.

Which of the following describes that the VR Robot will drive forward until the value of the Distance Sensor is less than 150 millimeters (mm)?

• Drive forward for 150 millimeters (mm).

• Drive forward until the Distance Sensor is greater than 150 millimeters (mm) away from an object.

• Drive forward until the Distance Sensor is less than 150 millimeters (mm) away from an object.

• Drive forward, stop, drive forward again for 150 millimeters (mm).

Why was the [Drive] block used instead of the [Drive for] block in this project?

• If the [Drive for] block was used, the VR Robot would drive a specific distance and come to a stop before moving to the [Wait until] block. This is because the [Drive for] block is a waiting block and does not allow the project flow to continue until its condition is met.

• If the [Drive for] block was used, the VR Robot would start driving until it was told otherwise. This is because the [Drive for] block is a non-waiting block and will allow the project to move to the next block in the stack immediately.

• If the [Drive for] block was used, the VR Robot would drive a specific distance four times, acting as a [Repeat] block,

• If the [Drive for] block was used, the VR Robot would not move. This is because the [Drive for] block is a reporter block.