Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 462 · 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 53 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How far from the wall does it stop (in cm)?
2. 2.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) neither part (b) the else part (c) both parts (d) the if part
3. 3.🤖 Obstacle avoiding: what should a robot do when something is close? (a) close its eyes (b) speed up (c) stop or turn away (d) push it hard
4. 4.🤖 What does an “if” let a robot do? (a) charge itself (b) choose using a sensor (c) go faster always (d) skip all sensors
5. 5.🤖 if (bumper is pressed) { back up and turn right } else { go forward }
   The bumper is pressed. What does the robot do? (a) back up and turn right (b) go forward
6. 6.🤖 A robot is 69 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How far from the wall does it stop (in cm)?
7. 7.🤖 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)?
8. 8.🤖 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)?
9. 9.🤖 A robot is 64 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 12 cm and the light reading is 85. What does the robot do? (a) turn left (b) go forward (c) stop
11. 11.🤖 A robot is 56 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
12. 12.🤖 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
13. 13.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 35 cm and the light reading is 20. What does the robot do? (a) go forward (b) stop (c) turn left
14. 14.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 1 cm. What does the robot do? (a) go forward (b) turn right
15. 15.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 40 cm and the light reading is 85. What does the robot do? (a) turn left (b) stop (c) go forward
16. 16.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 32 cm and the light reading is 45. What does the robot do? (a) stop (b) turn left (c) go forward
17. 17.🤖 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
18. 18.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 23 cm. What does the robot do? (a) go forward (b) turn right
19. 19.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 19 cm. What does the robot do? (a) go forward (b) turn right
20. 20.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 33 cm and the light reading is 80. What does the robot do? (a) turn left (b) go forward (c) stop
21. 21.🤖 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
22. 22.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 9 cm. What does the robot do? (a) go forward (b) turn right
23. 23.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 21 cm. What does the robot do? (a) turn right (b) go forward
24. 24.🤖 A robot is 108 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
25. 25.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 37 cm. What does the robot do? (a) turn right (b) go forward
26. 26.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 33 cm and the light reading is 50. What does the robot do? (a) go forward (b) turn left (c) stop
27. 27.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 40 cm and the light reading is 10. What does the robot do? (a) turn left (b) go forward (c) stop
28. 28.🤖 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
29. 29.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 24 cm. What does the robot do? (a) turn right (b) go forward
30. 30.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 8 cm and the light reading is 20. What does the robot do? (a) go forward (b) stop (c) turn left
31. 31.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 38 cm and the light reading is 70. What does the robot do? (a) go forward (b) turn left (c) stop
32. 32.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 31 cm. What does the robot do? (a) go forward (b) turn right
33. 33.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 12 cm. What does the robot do? (a) go forward (b) turn right
34. 34.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 38 cm and the light reading is 20. What does the robot do? (a) turn left (b) stop (c) go forward
35. 35.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 21 cm and the light reading is 25. What does the robot do? (a) stop (b) turn left (c) go forward
36. 36.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 6 cm. What does the robot do? (a) turn right (b) go forward
37. 37.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 4 cm. What does the robot do? (a) go forward (b) turn right
38. 38.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 16 cm. What does the robot do? (a) go forward (b) turn right
39. 39.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 13 cm. What does the robot do? (a) turn right (b) go forward
40. 40.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 38 cm and the light reading is 90. 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