What do waiting commands do in a VEXcode VR project?

Start the timer on the Playground.

What does a not keyword do when added to a while loop?

Inverts the value of a Boolean condition from True to False or False to True

Pauses the project for 2 seconds after each iteration through the loop

Changes the condition from left_bumper.pressed to right_bumper.pressed

Set the VR Robot Pen color to red.

Which of the following describes the while loop?

It will not move to the next command until the condition of the Boolean reports True.

It will move to the next command while checking a Boolean condition.

It will execute the next command after waiting 1 second.

It will stop the project completely.

How will the VR Robot behave once the Right Bumper Sensor is pressed in this example?

The VR Robot will stop driving.

The VR Robot will turn right 90 degrees.

The VR Robot will drive forward.

What will the left_bumper.pressed command inside the while loop report in this example?

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

Yes (bumper not pressed) or No (bumper pressed).

Drive forward (bumper pressed) or Drive in Reverse (bumper not pressed).

Turn right (bumper pressed) or Turn Left (bumper not pressed).

Which of the following best describes how to create a project where the VR Robot drives forward until the Bumper Sensor is pressed?

Type or drage in the while loop, add a not condition , set the left_bumper.pressed command as the condition. Add a drive command inside the loop.

Type or drag in the drive command, then add the turn_for and left_bumper.pressed commands underneath.

Type or drag in a for loop, inside the loop type or drag in the left_bumper.pressed command after the drive command

Type or drag the drive_for command, then add the while loop. Add the set_drive_heading command inside the loop.

Which of the following is the best description of what this less than (<) operator reports while used as a condition inside of this while loop?

The height of the wall in the Wall Maze Playground.

The total time needed to run the project.

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

In this sample project the VR Robot should get to the number "2" in the Wall Maze, but it does not. Which of the following describes the error in this project?

A less than (<) operator was used instead of a greater than (>) operator.

A drive_for command is missing.

A turn_for command was used instead of turn command.

A turn_to_rotation command is missing.

Which is an advantage of being able to monitor Distance Sensor values in the Dashboard when running a VEXcode VR project?

Allows the user to see what is happening in a VEXcode VR project in real time.

Allows the user to control what is happening in a VEXcode VR project.

Allows the user to see what is happening in the Playground Dashboard.

Allows the user to see a breakdown of each VEXcode VR project step.

Which of the following describes how the VR Robot will move in this project?

The VR Robot will drive forward while the Distance Sensor reports a distance greater than 150 millimeters away from an object, then stop.

The VR Robot will drive forward while the Distance Sensor reports a distance less than 150 millimeters away from an object, then stop.

The VR Robot will drive exactly 150 millimeters then stop.

The VR Robot will drive forward, stop, drive forward again for 150 millimeters then stop.

Which of the following describes why the VR Robot will not move in this example project?

The distance between the Distance Sensor and the object is greater than 150 millimeters (mm) away.

The distance between the Distance Sensor and the object is less than 150 millimeters (mm) away.

The Left Bumper is not being pressed.

The VR Robot will immediately crash into a wall if it moves.

What does using comments in a project allow users to do?

Describe parts of their project for other users.

How do you add comments to a project?

Type “#” (pound sign) and write the comment on the same line.

Right click or long press in the Workspace. Then select “Font Reset.”

Right click or long press on a command. Then select “Font Increase.”

Select "File" and "Add Comment".

Which of the following would be the best comment to describe this project?

Drive the VR Robot in a square.

Drive the VR Robot in a triangle.

This project was used to drive the VR Robot to number "4" on the Number Grid Map, but it does not work correctly. What is the error?

The turn_for command should be the first command in the project, not the last.

The VR Robot should turn left first.

The operator inside the while loop condition should be greater than (>) -300, not less than (<).

The drive command is not needed.

What will happen when the Front Eye Sensor detects ‘RED’ in this project?

The VR Robot will stop driving.

The VR Robot will turn left for 90 degrees.

The VR Robot will drive forward.

The VR Robot will check the Front Eye Sensor repeatedly for the color ‘BLUE.’

What is the purpose of having multiple if statements in this project?

To have the Front Eye Sensor check for each color and have the VR Robot perform a discrete behavior depending on the color detected.

To have the Electromagnet Sensor pick up and place disks.

To be able to have the Down Eye Sensor check for the color red.

To have the Distance Sensor report how far the VR Robot is from an object.

In this project, if the condition of the Down Eye detecting red is True, how will the VR Robot move?

It will turn right for 115 degrees.

It will turn left for 115 degrees.

Which of the following best describes why an infinite while loop is used in this project?

To continuously check if the VR Robot is near an object with detectable colors.

To continuously check if the VR Robot pen is up or down.

To draw the color blue with the VR Robot pen.

To report if the Bumper Sensors are being pressed.

What condition will be checked next if the condition of the Front Eye Sensor detecting ‘BLUE’ is False?

The condition of the Front Eye Sensor detecting ‘RED’ will be checked.

The condition of the Front Eye Sensor detecting ‘GREEN’ will be checked.

The condition of the Down Eye Sensor detecting ‘RED’ will be checked.

The condition of the Front Eye Sensor detecting ‘NONE’ will be checked.

Why are the if statements inside the infinite while loop for this project?

Conditions of the if statement will be checked continually if inside an infinite while loop. The VR Robot will use the Down Eye Sensor to continually check for ‘RED’ and ‘GREEN.’

The infinite while loop is not needed.

If the infinite while loop was not used, the if statement would only be executed and checked twice.

To turn right for 115 degrees when an object is detected.

The goal of this challenge is to navigate the VR Robot through the Disk Maze and stop at the red disk. Which of the following should be added to this project in order to solve the Disk Maze challenge?

If the Front Eye Sensor detects ‘RED’ then stop.

If the Front Eye Sensor detects ‘BLUE’ then stop.

If the Down Eye Sensor detects three objects then stop.

If the Location Sensor detects an X coordinate of > 300mm then stop.

Which of the following best describes what the VR Robot will do in this project?

The VR Robot will energize the magnet, drive forward 800 millimeters (mm), turn left 180 degrees, drive forward 800 millimeters (mm) and drop any disks that were picked up.

The VR Robot will drive forward 800 millimeters (mm), turn left 180 degrees, drive forward 800 millimeters (mm) and drop any disks that were picked up.

The VR Robot will energize the magnet, drive forward 800 millimeters (mm), and turn left 180 degrees.

The VR Robot will energize the magnet, drive forward 200 millimeters (mm), turn left 90 degrees, drive forward 200 millimeters (mm) and drop any disks that were picked up.

In this project, what will happen if the Down Eye Sensor does NOT detect an object?

The VR Robot will drive forward.

The VR Robot will check the condition of the front_eye.detects command again.

The VR Robot will stop driving.

The VR Robot will stop driving, then set the Electromagnet to ‘BOOST.’

Which direction will the VR Robot turn when using the turn_to_heading command?

The VR Robot will determine which direction to turn based on the current heading of the Gyro Sensor. The VR Robot will turn in the direction with the smaller degree difference between the current and given heading.

The VR Robot will determine which direction to turn based on the current heading of the Distance Sensor.

The VR Robot will always turn counter-clockwise.

The VR Robot will always turn clockwise.

Which of the following describes one reason to use a turn_to_heading command versus a turn or turn_for command?

turn_to_heading makes projects repeatable from one run to another because the VR Robot will move to the specified heading regardless of the previous position of the VR Robot.

turn_to_heading will orient the VR Robot to the starting position in any Playground.

turn_to_heading makes projects unique and difficult to repeat from one run to another because the VR Robot will move for a specific number of degrees based on the current position of the VR Robot.

turn_to_heading is based on the readings from the Distance Sensor, so it is more accurate than other turn commands.

This project is intended to collect three disks and return them to the goal, but it is not working. What needs to be corrected for this project to run as intended?

The commands within the for loop and the while loops need to be properly indented.

The for loop needs to be moved to the bottom of the project.

Additional Drivetrain commands need to be added to the project.

Only the wait commands need to be indented further.

Which of the following best describes the project flow in this project?

The VR Robot will begin by moving forward 300 millimeters (mm) and will turn right 90 degrees. These two commands will be executed two times in a row because of the for loop. The VR Robot will then turn to a heading of 0 degrees. The VR Robot will repeat all these steps two additional times for a total of three repeats.

The VR Robot will begin by moving forward 300 millimeters (mm) and will turn right 90 degrees. The VR Robot will then turn to a heading of 0 degrees. The VR Robot will repeat all these steps two additional times for a total of three repeats.

The VR Robot will begin by moving forward 300 millimeters (mm) and will turn right 90 degrees. The VR Robot will then turn to a heading of 0 degrees. The VR Robot will repeat all these steps one additional time for a total of two repeats.

The VR Robot will begin by moving forward 300 millimeters (mm) and will turn right 90 degrees. These two commands will be executed two times in a row because of the for loop. The VR Robot will then turn to a heading of 0 degrees.

What is one reason to use nested loops?

To repeat certain actions more than others within the outer for loop.

To sense the distance between the VR Robot and an object.

To determine if there is a red object on the Playground.

To turn the VR Robot to a specific heading based on the Gyro Sensor.

This project should solve the Disk Mover Challenge, but it does not work correctly. What is the error?

The outer loop is set to repeat two times rather than three.

The inner loop is set to repeat three times rather than two.

The Electromagnet is never instructed to pick up a disk.

The Electromagnet is never instructed to drop a disk.

Which of the following is the best explanation of an algorithm?

A precise sequence of instructions, implemented using programming languages, for processes to be carried out by a robot.

A type of command that can contain other commands inside of it, that all follow a specific programming language.

The way to break down a problem into discrete behaviors that can be used by a robot.

A mathematical equation that contains an addition and equal sign used to plan a precise sequence of instructions for a robot.

Which of the following runs the commands inside either the ‘if’ or the ‘else’ branch based on the Boolean value reported?

while loop with a not condition

Which of the following best explains why if else statements are normally used with a for loop or an infinite while loop?

In order to check the condition more than once.

In order to move immediately to the next command without checking any conditions.

In order to stop the VR Robot from moving.

In order to check the condition only once.

Which of the following explains why an infinite while loop is needed in this project to ensure that the VR Robot does not fall off of the Playground?

Without the infinite while loop, the condition of the Down Eye Sensor detecting red will only be checked once. The VR Robot would drive forward and fall off the Playground.

The infinite while loop ensures that the VR Robot will drive forward forever and not fall off the Playground.

The infinite while loop will stop the VR Robot from moving.

The infinite while loop will check the condition of the Bumper Sensor being pressed.

What behavior will the VR Robot perform if the Left Bumper Sensor is pressed?

The VR Robot will drive in reverse for 50 millimeters (mm) and then turn left for 90 degrees.

The VR Robot will continue to drive forward forever.

The VR Robot will drive forward for 50 millimeters (mm) and then turn right for 90 degrees.

Which of the following sensor commands should be used in the while loop condition to check if the VR Robot's Down Eye Sensor detects red so the VR Robot does not fall off of the Playground?

The front_eye.near_object command

The left_bumper.pressed command

The condition of the Distance Sensor detecting an object is already being checked in this project. What additional condition should be checked using the Eye Sensor to ensure the VR Robot does not fall off of the Playground?

The Down Eye Sensor should check for the condition if it detects the color red.

The Down Eye Sensor should check for the condition if it detects the color blue.

The Front Eye Sensor should check for the condition if it detects the color green.

The Bumper Sensors should check for the conditions if either of the sensors are pressed.

This project was used to knock all buildings off of the Dynamic Castle Crasher Playground, but it does not work correctly. Which of the following best describes the error in this project?

The if else statement should be nested inside a while loop with a not condition and the condition set to the down_eye.detect command.

The condition of the if else statement should be the down_eye.detect command.

The drive and turn commands should be replaced with the drive_for and turn_for commands.

The infinite while loop should be removed.

Which of these best describes a programming language?

A set of rules where symbols represent actions.

A set of spoken commands for a robot.

An action performed by a robot.

A list of behaviors the robot already completed.

How do you change the behavior of the VR Robot?

Change the programming commands.

Change the programming language.

Robotics Term 2 Final

Authored by Jason Martins

Other

9th - 12th Grade

Used 5+ times

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60 questions

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many times will the for loop repeat the turn_for and drive_for commands inside of it?

Only once

Two times

Three times

Four Times

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What type of values can the range function of a for loop accept as parameters?

Decimal values

Negative Values

Words or text

Integers

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the condition that will end this for loop?

After the VR Robot places the pen down.

After the VR Robot drives forward one time for 200 millimeters(mm).

After the for loop has repeated the commands inside of it four times>

After the VR Robot has driven forward 200 millimeters(mm) then turned right 60 degrees, six times.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How can the following example be simplified by using a for loop?

By placing the first two drive_for and turn_for commands in a for loop that repeats four times.

By placing the drive_for command in a for loop that repeats four times

By placing the turn_for command in a for loop that repeats four times.

By changing all of the parameters of the drive_for commands to 400mm instead of 200mm

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which behaviors will be repeated as part of the for loop in this project?

Moving the pen down

Setting the pen color to red, driving forward 200mm, and turning right 45 degrees

Moving the pen up, setting the pen color to blue, and turning right for 90 degrees

Turning right for 45 degrees, moving the pen down, driving forward for 200mm

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The following project was created to draw a house, but it is unfinished. Which of the following commands should be used next to begin drawing the triangular roof of the house?

move command set to "UP"

drive_for command set to drive forward 2000 millimeters(mm)

for loop with the range function set to six

turn_for command set to turn left 135 degrees

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which statement is TRUE for non-waiting commands?

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

They pause the rest of the project until that command's behavior has been completed.

They cause the VR Robot to shut down.

They are always commands from the Looks category.

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Robotics Term 2 Final

How many times will the for loop repeat the turn_for and drive_for commands inside of it?

What type of values can the range function of a for loop accept as parameters?

What is the condition that will end this for loop?

How can the following example be simplified by using a for loop?

Which behaviors will be repeated as part of the for loop in this project?

The following project was created to draw a house, but it is unfinished. Which of the following commands should be used next to begin drawing the triangular roof of the house?

Which statement is TRUE for non-waiting commands?

What do waiting commands do in a VEXcode VR project?

What does a not keyword do when added to a while loop?

TRUE or FALSE: The while loop accepts Boolean values.

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