Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 500 · 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.🤖 Obstacle avoiding: what should a robot do when something is close? (a) close its eyes (b) stop or turn away (c) push it hard (d) speed up
2. 2.🤖 What does an “if” let a robot do? (a) skip all sensors (b) choose using a sensor (c) go faster always (d) charge itself
3. 3.🤖 A robot is 41 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How many times does it move forward?
4. 4.🤖 if (distance < 10) { turn right } else { go forward }
   The distance sensor reads 9 cm. What does the robot do? (a) turn right (b) go forward
5. 5.🤖 A robot is 99 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How many times does it move forward?
6. 6.🤖 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) stop (b) turn left (c) go forward
7. 7.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 20 cm and the light reading is 85. What does the robot do? (a) stop (b) turn left (c) go forward
8. 8.🤖 A robot is 39 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.🤖 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
10. 10.🤖 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
11. 11.🤖 A robot is 92 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) { turn right } else { go forward }
    The distance sensor reads 8 cm. What does the robot do? (a) go forward (b) turn right
13. 13.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 24 cm and the light reading is 55. What does the robot do? (a) go forward (b) turn left (c) stop
14. 14.🤖 A robot is 65 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
15. 15.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 9 cm and the light reading is 75. What does the robot do? (a) stop (b) go forward (c) turn left
16. 16.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 16 cm and the light reading is 20. What does the robot do? (a) stop (b) go forward (c) turn left
17. 17.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 20 cm and the light reading is 55. What does the robot do? (a) turn left (b) stop (c) go forward
18. 18.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 21 cm. What does the robot do? (a) go forward (b) turn right
19. 19.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 23 cm and the light reading is 85. What does the robot do? (a) stop (b) turn left (c) go forward
20. 20.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 11 cm and the light reading is 20. What does the robot do? (a) go forward (b) turn left (c) stop
21. 21.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 14 cm. What does the robot do? (a) go forward (b) turn right
22. 22.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 32 cm. What does the robot do? (a) turn right (b) go forward
23. 23.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) both parts (b) the else part (c) neither part (d) the if part
24. 24.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 39 cm and the light reading is 35. What does the robot do? (a) turn left (b) stop (c) go forward
25. 25.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 15 cm and the light reading is 20. What does the robot do? (a) stop (b) go forward (c) turn left
26. 26.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 19 cm. What does the robot do? (a) go forward (b) turn right
27. 27.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 27 cm. What does the robot do? (a) go forward (b) turn right
28. 28.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 30 cm and the light reading is 35. What does the robot do? (a) go forward (b) turn left (c) stop
29. 29.🤖 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
30. 30.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 18 cm. What does the robot do? (a) turn right (b) go forward
31. 31.🤖 A robot is 70 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
32. 32.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 22 cm and the light reading is 15. What does the robot do? (a) turn left (b) go forward (c) stop
33. 33.🤖 A robot is 50 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
34. 34.🤖 A robot is 63 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.🤖 A robot is 31 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
36. 36.🤖 A robot is 54 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
37. 37.🤖 A robot is 54 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
38. 38.🤖 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
39. 39.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 12 cm and the light reading is 90. What does the robot do? (a) go forward (b) turn left (c) stop
40. 40.🤖 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) turn left (b) stop (c) go forward

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