Vex Block Programming

Identify the device shown in the image.

• Radio

• Motor

• Brain

• Battery

Identify the device shown in the image.

• Smart Motor

• Radio

• Engine

• Brain

Which device secures the motor to the angle structure through the bearing?

• Pop rivets

• Screws

• Spacers

• Collars

Which block must be at the beginning of every program in VEXcode?

• 
• 
• 
• 

Which of the following describes why a Repeat block is used in a project?

• To repeat certain blocks forever.

• To run a sequence of commands a specific number of times.

• To only run a stack of blocks one time.

• To run an attached stack of blocks when the project starts.

What will the VR Robot do if the condition of the Left Bumper Sensor being pressed is TRUE?

• The VR Robot will continue to drive forward.

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

• The VR Robot will stop moving.

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

Which of the following best explains why a [Repeat until] block was used in this project instead of a [Wait until] block?

• A [Wait until] block would block the project flow.

  The robot would be waiting to detect red before doing anything else.

• Using a [Repeat until] block allows the robot to drive forward for 300 millimeters (mm) and then turn right for 90 degrees, forever.

• Using a [Wait until] block checks for red after every robot move, which is not needed.

• Using a [Repeat until] block allows the [If then else] block to be skipped. This allows the project to execute faster.

How can the following example be simplified using a [Repeat] block?

• By placing the drive forward and turn blocks in a [Repeat] block that repeats four times.

• By placing the drive forward block in a [Repeat] block that repeats four times.

• By placing the turn block in a [Repeat] block that repeats four times.

• By changing all of the parameters of the drive forward blocks to 400mm instead of 200 mm.

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

• The VR Robot will drive forward 1000 millimeters (mm) at maximum velocity, turn right 180 degrees, set the velocity back to the default, and drive forward 1000 millimeters (mm).

• The VR Robot will drive forward 1000 millimeters (mm) at maximum velocity, turn right 180 degrees, and drive forward 1000 millimeters (mm).

• The VR Robot will drive forward 1000 millimeters (mm) at maximum velocity, turn right 90 degrees, set the velocity back to the default, and drive forward 1000 millimeters (mm).

• The VR Robot will drive forward 1000 millimeters (mm) at maximum velocity, turn left 180 degrees, set the velocity back to the default, and drive forward 1000 millimeters (mm).

How long will the Left_Motor spin?

• It will not spin

• 2 seconds

• 4 seconds