Every robot works in a loop. First it senses: a bumper is pressed, a light sensor reads the floor or a camera spots a wall. Then it thinks: the controller runs the program, compares numbers and decides. Then it acts: wheels spin, a gripper closes or a buzzer beeps. Then it senses again. A robot vacuum that bumps into a chair feels the bump, decides to turn, turns with its motors and drives on.
Work it out in your head or on paper, then tap your answer — or type it and press Check. Stuck? Press “Show me how”.
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🏁 Lesson 2 test
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.
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