Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 8 · 40 questions

Robot tip (True → if, false → else): Put the reading into the condition: true → the if part, false → the else part. < means strictly less; an equal reading makes it false. else if: check the conditions from the top; the first true one wins. while: repeat until the condition is false.

1. 1.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 40 cm and the light reading is 90. What does the robot do? (a) stop (b) turn left (c) go forward
2. 2.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) both parts (b) neither part (c) the else part (d) the if part
3. 3.🤖 What does an “if” let a robot do? (a) go faster always (b) skip all sensors (c) charge itself (d) choose using a sensor
4. 4.🤖 if (distance < 25) { turn right } else { go forward }
   The distance sensor reads 20 cm. What does the robot do? (a) go forward (b) turn right
5. 5.🤖 if (distance < 30) { turn right } else { go forward }
   The distance sensor reads 33 cm. What does the robot do? (a) go forward (b) turn right
6. 6.🤖 if (bumper is pressed) { back up and turn left } else { go forward }
   The bumper is pressed. What does the robot do? (a) go forward (b) back up and turn left
7. 7.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 33 cm and the light reading is 20. What does the robot do? (a) turn left (b) stop (c) go forward
8. 8.🤖 if (distance < 10) { turn right } else { go forward }
   The distance sensor reads 19 cm. What does the robot do? (a) turn right (b) go forward
9. 9.🤖 A robot is 81 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How many times does it move forward?
10. 10.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 33 cm and the light reading is 60. What does the robot do? (a) turn left (b) go forward (c) stop
11. 11.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 25 cm. What does the robot do? (a) turn right (b) go forward
12. 12.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 17 cm and the light reading is 30. What does the robot do? (a) turn left (b) stop (c) go forward
13. 13.🤖 Obstacle avoiding: what should a robot do when something is close? (a) close its eyes (b) push it hard (c) stop or turn away (d) speed up
14. 14.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 12 cm and the light reading is 35. What does the robot do? (a) turn left (b) go forward (c) stop
15. 15.🤖 if (bumper is pressed) { back up and turn right } else { go forward }
    The bumper is not pressed. What does the robot do? (a) back up and turn right (b) go forward
16. 16.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 16 cm. What does the robot do? (a) go forward (b) turn right
17. 17.🤖 if (bumper is pressed) { back up and turn left } else { go forward }
    The bumper is not pressed. What does the robot do? (a) back up and turn left (b) go forward
18. 18.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 4 cm. What does the robot do? (a) turn right (b) go forward
19. 19.🤖 if (bumper is pressed) { back up and turn right } else { go forward }
    The bumper is pressed. What does the robot do? (a) go forward (b) back up and turn right
20. 20.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 6 cm. What does the robot do? (a) go forward (b) turn right
21. 21.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 8 cm and the light reading is 85. What does the robot do? (a) go forward (b) turn left (c) stop
22. 22.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 31 cm. What does the robot do? (a) turn right (b) go forward
23. 23.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 30 cm and the light reading is 20. What does the robot do? (a) stop (b) turn left (c) go forward
24. 24.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 22 cm. What does the robot do? (a) turn right (b) go forward
25. 25.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 23 cm and the light reading is 20. What does the robot do? (a) go forward (b) stop (c) turn left
26. 26.🤖 A robot is 106 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
27. 27.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 9 cm and the light reading is 10. What does the robot do? (a) go forward (b) turn left (c) stop
28. 28.🤖 A robot is 42 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
29. 29.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 29 cm. What does the robot do? (a) go forward (b) turn right
30. 30.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 24 cm and the light reading is 50. What does the robot do? (a) stop (b) go forward (c) turn left
31. 31.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 34 cm and the light reading is 20. What does the robot do? (a) turn left (b) stop (c) go forward
32. 32.🤖 A robot is 57 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
33. 33.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 31 cm. What does the robot do? (a) turn right (b) go forward
34. 34.🤖 A robot is 59 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
35. 35.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 36 cm and the light reading is 60. What does the robot do? (a) stop (b) go forward (c) turn left
36. 36.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 10 cm. What does the robot do? (a) go forward (b) turn right
37. 37.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 38 cm and the light reading is 40. What does the robot do? (a) stop (b) go forward (c) turn left
38. 38.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 6 cm and the light reading is 25. What does the robot do? (a) turn left (b) go forward (c) stop
39. 39.🤖 A robot is 94 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
40. 40.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 22 cm and the light reading is 70. What does the robot do? (a) go forward (b) stop (c) turn left

Free robotics lessons, practice and worksheets at talentjr.in/robotics-for-kids