Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 190 · 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 29 cm and the light reading is 90. What does the robot do? (a) go forward (b) turn left (c) stop
2. 2.🤖 A robot is 98 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How far from the wall does it stop (in cm)?
3. 3.🤖 if (distance < 25) { turn right } else { go forward }
   The distance sensor reads 36 cm. What does the robot do? (a) turn right (b) go forward
4. 4.🤖 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
5. 5.🤖 A robot is 89 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How many times does it move forward?
6. 6.🤖 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)?
7. 7.🤖 if (distance < 20) { turn right } else { go forward }
   The distance sensor reads 12 cm. What does the robot do? (a) go forward (b) turn right
8. 8.🤖 A robot is 66 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How many times does it move forward?
9. 9.🤖 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
10. 10.🤖 A robot is 67 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
11. 11.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 26 cm and the light reading is 55. What does the robot do? (a) go forward (b) stop (c) turn left
12. 12.🤖 Obstacle avoiding: what should a robot do when something is close? (a) speed up (b) push it hard (c) close its eyes (d) stop or turn away
13. 13.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 6 cm and the light reading is 45. What does the robot do? (a) stop (b) turn left (c) go forward
14. 14.🤖 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
15. 15.🤖 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
16. 16.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the else part (b) the if part (c) both parts (d) neither part
17. 17.🤖 A robot is 45 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
18. 18.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 26 cm. What does the robot do? (a) turn right (b) go forward
19. 19.🤖 A robot is 34 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
20. 20.🤖 What does an “if” let a robot do? (a) charge itself (b) skip all sensors (c) choose using a sensor (d) go faster always
21. 21.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 7 cm and the light reading is 10. What does the robot do? (a) go forward (b) turn left (c) stop
22. 22.🤖 A robot is 80 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
23. 23.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 28 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 38 cm and the light reading is 25. What does the robot do? (a) turn left (b) go forward (c) stop
25. 25.🤖 if (bumper is pressed) { back up and turn left } else { go forward }
    The bumper is not pressed. What does the robot do? (a) go forward (b) back up and turn left
26. 26.🤖 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
27. 27.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 25 cm. What does the robot do? (a) go forward (b) turn right
28. 28.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 14 cm. What does the robot do? (a) turn right (b) go forward
29. 29.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 18 cm and the light reading is 60. What does the robot do? (a) go forward (b) turn left (c) stop
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 10. What does the robot do? (a) turn left (b) go forward (c) stop
31. 31.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 29 cm. What does the robot do? (a) go forward (b) turn right
32. 32.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 10 cm. What does the robot do? (a) go forward (b) turn right
33. 33.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 30 cm. What does the robot do? (a) go forward (b) turn right
34. 34.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 25 cm. What does the robot do? (a) turn right (b) go forward
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 80. What does the robot do? (a) turn left (b) stop (c) go forward
36. 36.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 8 cm. What does the robot do? (a) go forward (b) turn right
37. 37.🤖 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
38. 38.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 11 cm and the light reading is 90. What does the robot do? (a) turn left (b) go forward (c) stop
39. 39.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 5 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 40 cm and the light reading is 40. 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