VR.VEX.COM Python Unit 4 Exam

Which command reports if the Left Bumper Sensor is pressed?

• found_object

• left_bumper.pressed

• near_object

• bumper_on

What values do the left_bumper.pressed and right_bumper.pressed commands return?

• True (pressed) or False (not pressed).

• Positive (pressed) or Negative (not pressed).

• Number values between one and ten.

• Distance from object in millimeters (mm).

What will happen when the Bumper Sensor is pressed in this project?

• The VR Robot will turn left for 90 degrees.

• The VR Robot will stop moving.

• The VR Robot will turn right for 90 degrees.

• The VR Robot will drive in reverse for 200 millimeters (mm).

Tags

NGSS.MS-PS2-2

What does the right_bumper.pressed command report if the Right Bumper Sensor is pressed?

• True

• False

• A measured distance.

• An object found.

How could you use the Bumper Sensor in the Wall Maze Challenge?

• To calculate the distances between the VR Robot and a wall.

• To instruct the VR Robot to turn when it bumps into a wall.

• To make the VR Robot ascend a wall to finish the maze faster.

• To determine the color of the wall.

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-PS2-1

What do non-waiting commands do in a VEXcode VR project?

• They repeat a behavior forever.

• They skip the next command.

• They allow the next command to continue even if the command's behavior is not yet complete.

• They should only be used in an emergency.

Which of these statements is true for waiting commands?

• They wait for the user to select the “Stop” button.

• They wait until the VR Robot has enough power to complete the task.

• They allow the rest of the commands in the project to continue even if that command's behavior has not been completed.

• They pause the code until that command's behavior has been completed.

How often will the while loop check a Boolean condition?

• It will check repeatedly until the Boolean condition reports True

• It will check repeatedly until the Boolean condition reports False.

• It will check once every minute until the project is complete.

• It will check only once.

Which of the following is indented inside of the while loop in order to check sensor conditions?

• Waiting commands (e.g. turn_for)

• Looks commands (e.g set_pen_color)

• Non-waiting commands (e.g. drive)

• Sensing commands (e.g. left_bumper.pressed)

Tags

NGSS.MS-LS1-8

How is the left_bumper.pressed command used in this project?

• It pauses the project indefinitely.

• It causes the VR Robot to move forward for 200 millimeters (mm).

• It checks the condition of the Bumper Sensor. When True, the VR Robot will turn right 180 degrees.

• It instructs the VR Robot to turn to 90 degrees.