Comprehension Questions – Let’s stop at a blank line
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Ερώτηση 1 of 5
1. Question
What is the colour of the light that the line tracking sensor emits?
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Ερώτηση 2 of 5
2. Question
When red light falls onto a white surface, it is reflected back to the robot.
When it falls onto a black surface, it is not reflected back to the robot.
This way the robot “knows” if it is over a white or black coloured surface.CorrectIncorrect -
Ερώτηση 3 of 5
3. Question
The robot did not stop at:
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Ερώτηση 4 of 5
4. Question
Why didn’t the robot stopped at the red line?
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Ερώτηση 5 of 5
5. Question
Which colour do you think is best to get Edison to stop?
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