Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 294 · 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 5 cm and the light reading is 40. What does the robot do? (a) turn left (b) stop (c) go forward
2. 2.🤖 Obstacle avoiding: what should a robot do when something is close? (a) push it hard (b) close its eyes (c) stop or turn away (d) speed up
3. 3.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 26 cm and the light reading is 85. What does the robot do? (a) turn left (b) stop (c) go forward
4. 4.🤖 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
5. 5.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 15 cm and the light reading is 40. What does the robot do? (a) stop (b) go forward (c) turn left
6. 6.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 17 cm and the light reading is 35. What does the robot do? (a) go forward (b) turn left (c) stop
7. 7.🤖 if (distance < 25) { turn right } else { go forward }
   The distance sensor reads 18 cm. What does the robot do? (a) turn right (b) go forward
8. 8.🤖 A robot is 41 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 10 cm and the light reading is 30. What does the robot do? (a) turn left (b) stop (c) go forward
10. 10.🤖 A robot is 46 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
11. 11.🤖 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
12. 12.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 6 cm and the light reading is 20. What does the robot do? (a) turn left (b) go forward (c) stop
13. 13.🤖 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)?
14. 14.🤖 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
15. 15.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 11 cm and the light reading is 55. What does the robot do? (a) go forward (b) stop (c) turn left
16. 16.🤖 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)?
17. 17.🤖 A robot is 59 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
18. 18.🤖 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
19. 19.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 8 cm. What does the robot do? (a) turn right (b) go forward
20. 20.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 6 cm and the light reading is 30. What does the robot do? (a) stop (b) go forward (c) turn left
21. 21.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the else part (b) both parts (c) the if part (d) neither part
22. 22.🤖 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
23. 23.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 23 cm and the light reading is 65. What does the robot do? (a) turn left (b) stop (c) go forward
24. 24.🤖 A robot is 48 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.🤖 What does an “if” let a robot do? (a) go faster always (b) charge itself (c) skip all sensors (d) choose using a sensor
26. 26.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 27 cm and the light reading is 70. What does the robot do? (a) stop (b) turn left (c) go forward
27. 27.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 21 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 25 cm and the light reading is 10. What does the robot do? (a) turn left (b) go forward (c) stop
29. 29.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 17 cm. What does the robot do? (a) turn right (b) go forward
30. 30.🤖 A robot is 54 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
31. 31.🤖 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)?
32. 32.🤖 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
33. 33.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 37 cm and the light reading is 70. What does the robot do? (a) turn left (b) go forward (c) stop
34. 34.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 34 cm and the light reading is 45. What does the robot do? (a) stop (b) turn left (c) go forward
35. 35.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 20 cm and the light reading is 70. What does the robot do? (a) stop (b) turn left (c) go forward
36. 36.🤖 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
37. 37.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 30 cm. What does the robot do? (a) go forward (b) turn right
38. 38.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 28 cm. What does the robot do? (a) turn right (b) go forward
39. 39.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 33 cm and the light reading is 65. What does the robot do? (a) turn left (b) stop (c) go forward
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 65. What does the robot do? (a) stop (b) turn left (c) go forward

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