WorksheetsVEX VR Unit 8
Total questions: 17
Worksheet time: 9mins
What creates the magnetic field for the Electromagnet?
An electric current
An electrical outlet
A button on the VR Robot
An additional magnet
What objects can the Electromagnet pick up in VEXcode VR?
Buildings
Disks
Cubes
Pen drawings
What is one use of the Electromagnet in VEXcode VR?
To identify the color of disks
To solve the Wall Maze
To pick up and put down disks with metal cores
To find metal in the walls of Playgrounds
What happens when the [Energize Electromagnet] is set to boost while near a disk?
The Electromagnet attracts the disk
The Electromagnet drops the disk
The Dashboard reports the disk being picked up
Nothing happens
True or False: The [Energize Electromagnet] block is a reporter block that can be used with Drivetrain blocks to pick up disks.
True
False
Describe what the VR Robot will do in this project
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), 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), turn left 180 degrees, and drive forward 800 millimeters (mm).
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 check the condition of the <Eye Sensor near object> again
The VR Robot will drive forward.
The VR Robot will stop driving.
The VR Robot will stop driving, then set the Electromagnet to 'boost'
Which VR Robot sensor determines the color of an object when close enough?
Gyro Sensor.
Distance Sensor.
Eye Sensor
Location Sensor
Which sensor does the VR Robot use with the [Turn to heading] block?
Distance Sensor.
Gyro Sensor.
Location Sensor.
Bumper Sensor.
Which direction will the VR Robot turn when using the [Turn to heading] block?
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.
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.
Which of the following describes one reason to use a [Turn to heading] block versus a [Turn] or [Turn for] block?
[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 to the specified heading regardless of the previous 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.
How do you nest loops in a VEXcode VR project using blocks from the Tool Box?
Add the loop you want to nest underneath a loop in the workspace.
Drag the loop you want to nest inside of another existing loop in the workspace.
Add the loop you want to nest on top of an existing loop in the workspace.
Right-click or long-press on the block to activate the Context Menu and then select Nest Block.
Which of the following best describes the project flow in this VEXcode VR project?
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. These two commands will be executed two times in a row because of the [Repeat] 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 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 [Repeat] 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 repeat 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 inner loop is set to repeat three times rather than two.
The Electromagnet is never instructed to pick up a disk.
The outer loop is set to repeat two times rather than three
The Electromagnet is never instructed to drop a disk.
What happens when the [Energize Electromagnet] is set to drop while the Electromagnet sensor is holding a disk?
Nothing happens.
The Dashboard reports the disk being released.
The Electromagnet picks up the disk.
The Electromagnet releases the disk.
What is the best description of the [Energize Electromagnet] block?
Sets the Electromagnet to two different modes: Pick Up or Put Down.
Energizes the Electromagnet to press both Bumper Sensors.
Energizes the Electromagnet to attract all metal objects in a Playground.
Sets the VR Robot Electromagnet to two different modes: Boost or Drop.
