Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 222 · 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.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) both parts (b) the else part (c) the if part (d) neither part
2. 2.🤖 if (distance < 10) { turn right } else { go forward }
   The distance sensor reads 18 cm. What does the robot do? (a) turn right (b) go forward
3. 3.🤖 A robot is 41 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How far from the wall does it stop (in cm)?
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.🤖 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) stop (b) go forward (c) turn left
6. 6.🤖 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
7. 7.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 37 cm and the light reading is 65. What does the robot do? (a) stop (b) go forward (c) turn left
8. 8.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 38 cm and the light reading is 85. What does the robot do? (a) go forward (b) turn left (c) stop
9. 9.🤖 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)?
10. 10.🤖 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
11. 11.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 5 cm and the light reading is 25. What does the robot do? (a) turn left (b) stop (c) go forward
12. 12.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 11 cm and the light reading is 15. What does the robot do? (a) turn left (b) stop (c) go forward
13. 13.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 32 cm. What does the robot do? (a) go forward (b) turn right
14. 14.🤖 Obstacle avoiding: what should a robot do when something is close? (a) speed up (b) close its eyes (c) stop or turn away (d) push it hard
15. 15.🤖 What does an “if” let a robot do? (a) charge itself (b) go faster always (c) skip all sensors (d) choose using a sensor
16. 16.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 38 cm and the light reading is 80. What does the robot do? (a) turn left (b) stop (c) go forward
17. 17.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 6 cm and the light reading is 35. What does the robot do? (a) turn left (b) stop (c) go forward
18. 18.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 12 cm and the light reading is 10. What does the robot do? (a) go forward (b) turn left (c) stop
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.🤖 A robot is 80 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
21. 21.🤖 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)?
22. 22.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 17 cm. What does the robot do? (a) go forward (b) turn right
23. 23.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 23 cm. What does the robot do? (a) go forward (b) turn right
24. 24.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 29 cm and the light reading is 15. What does the robot do? (a) stop (b) go forward (c) turn left
25. 25.🤖 A robot is 72 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
26. 26.🤖 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
27. 27.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 12 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 13 cm and the light reading is 50. What does the robot do? (a) go forward (b) turn left (c) stop
29. 29.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 14 cm and the light reading is 85. What does the robot do? (a) go forward (b) stop (c) turn left
30. 30.🤖 A robot is 55 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
31. 31.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 20 cm and the light reading is 65. What does the robot do? (a) turn left (b) stop (c) go forward
32. 32.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 5 cm. What does the robot do? (a) go forward (b) turn right
33. 33.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 21 cm. What does the robot do? (a) turn right (b) go forward
34. 34.🤖 A robot is 109 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 < 10) { turn right } else { go forward }
    The distance sensor reads 20 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 12 cm and the light reading is 60. What does the robot do? (a) go forward (b) stop (c) turn left
37. 37.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 16 cm and the light reading is 80. What does the robot do? (a) stop (b) go forward (c) turn left
38. 38.🤖 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
39. 39.🤖 A robot is 67 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 18 cm and the light reading is 50. What does the robot do? (a) turn left (b) go forward (c) stop

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