VEX Review

What is a variable?

• Something that the computer changes all the time

• Something the computer needs to remember

• Something that shows only the distance a robot travels

• Something that does not change

What is a while loop?

• Some code that runs a fixed number of times

• Some code that loops forever

• Some code the loops until a condition is met

• Some code that runs for a random amount of time

What is the command to make a robot move backwards 300 millimeters?

• drivetrain.drive(REVERSE, 300, MM)

• drivetrain.drive_for(REVERSE, 300, mm)

• drivetrain.drive_for(BACKWARDS, 300, MM)

• drivetrain.drive_for(REVERSE, 300, MM)

How far will the robot move forward in total?

• 80

• 320

• 400

• 480

What should replace '???' to move the robot to find a red disc on the floor?

• front_eye.detect(RED)

• not down_eye.detect(RED)

• down_eye.detect(RED)

• eye.see(RED)

What code makes a loop run forever?

• for i in range(10000000)

• while True

• while not True

• for i in forever

What shape does this draw?

• Square

• Hexagon

• Octagon

• Circle

What is an algorithm?

• A computer code to do maths

• A set of rules that you must live by

• A set of instructions to complete a task

• The rhythm of a man called Al Gore

What is the mistake in this code?

• Needs a colon on the end of the while line

• Needs a NOT in front of distance

• Should be > 1000 MM

• Should be turn, not turn_for

Which robot character is the oldest?

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