Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 625 · 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.🤖 A robot is 91 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How many times does it move forward?
2. 2.🤖 if (bumper is pressed) { back up and turn right } else { go forward }
   The bumper is not pressed. What does the robot do? (a) go forward (b) back up and turn right
3. 3.🤖 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
4. 4.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 36 cm and the light reading is 25. What does the robot do? (a) turn left (b) go forward (c) stop
5. 5.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 16 cm and the light reading is 55. What does the robot do? (a) stop (b) go forward (c) turn left
6. 6.🤖 if (distance < 10) { turn right } else { go forward }
   The distance sensor reads 14 cm. What does the robot do? (a) go forward (b) turn right
7. 7.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the if part (b) neither part (c) the else part (d) both parts
8. 8.🤖 Obstacle avoiding: what should a robot do when something is close? (a) stop or turn away (b) close its eyes (c) push it hard (d) speed up
9. 9.🤖 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
10. 10.🤖 A robot is 74 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
11. 11.🤖 A robot is 35 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
12. 12.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 8 cm and the light reading is 45. What does the robot do? (a) go forward (b) stop (c) turn left
13. 13.🤖 if (bumper is pressed) { back up and turn left } else { go forward }
    The bumper is pressed. What does the robot do? (a) back up and turn left (b) go forward
14. 14.🤖 What does an “if” let a robot do? (a) skip all sensors (b) choose using a sensor (c) charge itself (d) go faster always
15. 15.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 7 cm and the light reading is 15. What does the robot do? (a) go forward (b) stop (c) turn left
16. 16.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 19 cm and the light reading is 75. What does the robot do? (a) stop (b) turn left (c) go forward
17. 17.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 28 cm and the light reading is 25. What does the robot do? (a) turn left (b) go forward (c) stop
18. 18.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 17 cm. What does the robot do? (a) go forward (b) turn right
19. 19.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 23 cm. What does the robot do? (a) turn right (b) go forward
20. 20.🤖 A robot is 52 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
21. 21.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 30 cm. What does the robot do? (a) turn right (b) go forward
22. 22.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 7 cm and the light reading is 70. What does the robot do? (a) turn left (b) go forward (c) stop
23. 23.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 21 cm. What does the robot do? (a) turn right (b) go forward
24. 24.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 7 cm and the light reading is 80. What does the robot do? (a) go forward (b) turn left (c) stop
25. 25.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 37 cm. What does the robot do? (a) go forward (b) turn right
26. 26.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 21 cm and the light reading is 65. What does the robot do? (a) stop (b) turn left (c) go forward
27. 27.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 23 cm. What does the robot do? (a) turn right (b) go forward
28. 28.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 29 cm and the light reading is 70. What does the robot do? (a) stop (b) go forward (c) turn left
29. 29.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 14 cm. What does the robot do? (a) go forward (b) turn right
30. 30.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 23 cm. What does the robot do? (a) turn right (b) go forward
31. 31.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 13 cm. What does the robot do? (a) turn right (b) go forward
32. 32.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 3 cm. What does the robot do? (a) go forward (b) turn right
33. 33.🤖 A robot is 96 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
34. 34.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 11 cm. What does the robot do? (a) go forward (b) turn right
35. 35.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 25 cm and the light reading is 25. What does the robot do? (a) turn left (b) go forward (c) stop
36. 36.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 2 cm. What does the robot do? (a) go forward (b) turn right
37. 37.🤖 A robot is 62 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
38. 38.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 37 cm. What does the robot do? (a) turn right (b) go forward
39. 39.🤖 A robot is 55 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
40. 40.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 17 cm and the light reading is 10. What does the robot do? (a) turn left (b) stop (c) go forward

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