Unit 3 VR Practice

Which of the following blocks is used to lift up the VEX VR Pen?

• Set Pen color block

• Set print color block

• Move robot pen block

• Set print precision block

What color lines can the VEX VR Pen NOT draw?

• Yellow

• Green

• Blue

• Red

Which of the following blocks is used to repeat the blocks inside of it for a set number of times?

• Forever block

• Repeat block

• Wait until block

• Break block

True or False: The [Repeat] block can accept decimals as parameters.

• True

• False

True or False: Conditions, like the number of times repeated, are used to end a [Repeat] block.

• True

• False

Which of the following describes why a [Repeat] block would be used in a project?

• To repeat certain blocks forever.

• To save space and time for blocks that repeat more than once in a project.

• To only run a stack of blocks one time.

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

Describe how the VR Robot will move in this project. This question refers to a diagram or code block that illustrates the movement of a VR Robot, which includes a loop to repeat certain actions.

• The VR Robot will set the pen down, then drive forward for 200 mm and turn right for 90 degrees; and repeat this 4 times in order to draw a square.

• The VR Robot will set the pen down and draw a straight line for 200 millimeters (mm) and then turn right for 90 degrees.

• The VR Robot will set the pen up and down four times before driving forward and then turning right 90 degrees.

• The VR Robot will set the pen down and drive forward one time for 200 millimeters (mm) before turning 90 degrees four times.

This project was used to draw a house on the Art Canvas Playground, but it does not work correctly. What is the error?

• The [Move robot pen] block should be at the bottom of the project.

• The [Repeat] block was set to three, but it should be set to four in order to draw the square portion of the house.

• There is no need for the [Repeat] block, as the VR Robot should only drive forward and turn once.

• The [Drive for] blocks should be replaced with [Drive] blocks.