VEX VR U7 L3L4 QUIZ

True or False: In this project, multiple [If then] blocks are used to check different conditions, and perform associated behaviors based on these conditions.

• True

• False

Which behaviors will be repeated in this project?

• Set pen position to down, Drive forward for 500 millimeters (mm).

• Turn right for 90 degrees, Set pen position up, stop driving.

• Drive forward for 500 millimeters (mm), Turn right for 90 degrees.

• Drive forward for 500 millimeters, Turn right for 90 degrees, Set pen position to down.

Which of the following best describes how the [If then] block functions in a VEXcode VR project?

• It allows the VR Robot to decide if it wants to complete a command or not.

• It allows the user to step through a project.

• It is a "C" block that runs the blocks inside of it if the Boolean condition reports TRUE.

• It allows the user to write information to help describe their program.

Which of the following is the best reason to use a [Forever] block in a VEXcode VR project?

• To continually check if a condition is TRUE or FALSE in a project.

• To create a project that draws a house.

• To highlight blocks as they are being executed.

• To disable a block.

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

• 1. The project flow will run from the top of the Forever loop down. The project will check each condition inside of the [If then] blocks.  If the condition is TRUE, it will execute what is inside of that block. If the condition is FALSE it will return to the top of the [Forever] block, and bypass the following blocks. This pattern will continue forever.

• The [Drive] block will be executed first, then each of the conditions in the loop will be checked, starting from the bottom up.

• The project flow will run from the top of the Forever loop down.  The project will check each condition inside of the [If then] blocks.  If the condition is TRUE, it will execute what is inside of that block. If the condition is FALSE it will move to the next if block. Once all four conditions have been checked, the project will stop.

• The project flow will run from the top of the Forever loop down, checking each condition inside of the [If then] blocks.  If the condition is TRUE, the project will execute what is inside of that block. If the condition reports FALSE the project will move to the next [If then] block. This will repeat for all 4 [If then] blocks. Once all [If then] conditions are checked, the project will return to the top of the Forever loop and start again. This pattern will continue forever.

Which of the following describes why you would use an [If then] control block with a [Forever] block?

• To save your project onto your device when a certain condition reports TRUE.

• To continuously check a condition.

• To more effectively use the Playground window to navigate the VR Robot.

• To run sensors one time in order to check for information from the Playground environment.