Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 777 · 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) { turn right } else { go forward }
   The distance sensor reads 6 cm. What does the robot do? (a) turn right (b) go forward
2. 2.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the else part (b) the if part (c) neither part (d) both parts
3. 3.🤖 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
4. 4.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 11 cm and the light reading is 50. What does the robot do? (a) turn left (b) stop (c) go forward
5. 5.🤖 if (distance < 20) { turn right } else { go forward }
   The distance sensor reads 15 cm. What does the robot do? (a) go forward (b) turn right
6. 6.🤖 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
7. 7.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 22 cm and the light reading is 85. What does the robot do? (a) go forward (b) stop (c) turn left
8. 8.🤖 A robot is 30 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How many times does it move forward?
9. 9.🤖 if (distance < 10) { turn right } else { go forward }
   The distance sensor reads 1 cm. What does the robot do? (a) turn right (b) go forward
10. 10.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 25 cm and the light reading is 85. What does the robot do? (a) go forward (b) stop (c) turn left
11. 11.🤖 What does an “if” let a robot do? (a) skip all sensors (b) go faster always (c) choose using a sensor (d) charge itself
12. 12.🤖 A robot is 40 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
13. 13.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 9 cm and the light reading is 20. What does the robot do? (a) turn left (b) go forward (c) stop
14. 14.🤖 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
15. 15.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 29 cm and the light reading is 65. What does the robot do? (a) turn left (b) stop (c) go forward
16. 16.🤖 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
17. 17.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 34 cm and the light reading is 90. What does the robot do? (a) go forward (b) turn left (c) stop
18. 18.🤖 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
19. 19.🤖 A robot is 91 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
20. 20.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 17 cm. What does the robot do? (a) turn right (b) go forward
21. 21.🤖 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
22. 22.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 16 cm. What does the robot do? (a) go forward (b) turn right
23. 23.🤖 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
24. 24.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 28 cm and the light reading is 80. What does the robot do? (a) go forward (b) stop (c) turn left
25. 25.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 22 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 7 cm and the light reading is 45. What does the robot do? (a) turn left (b) stop (c) go forward
27. 27.🤖 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)?
28. 28.🤖 A robot is 100 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
29. 29.🤖 A robot is 99 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
30. 30.🤖 A robot is 87 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
31. 31.🤖 A robot is 104 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
32. 32.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 15 cm and the light reading is 70. What does the robot do? (a) go forward (b) stop (c) turn left
33. 33.🤖 A robot is 35 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) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 40 cm and the light reading is 55. What does the robot do? (a) stop (b) go forward (c) turn left
35. 35.🤖 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
36. 36.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 17 cm and the light reading is 80. What does the robot do? (a) turn left (b) stop (c) go forward
37. 37.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 31 cm. What does the robot do? (a) turn right (b) go forward
38. 38.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 24 cm. What does the robot do? (a) turn right (b) go forward
39. 39.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 13 cm. What does the robot do? (a) go forward (b) turn right
40. 40.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 29 cm and the light reading is 60. 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