Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 122 · 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.🤖 What does an “if” let a robot do? (a) go faster always (b) choose using a sensor (c) skip all sensors (d) charge itself
2. 2.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 25 cm and the light reading is 80. What does the robot do? (a) turn left (b) stop (c) go forward
3. 3.🤖 A robot is 32 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 (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 7 cm and the light reading is 15. What does the robot do? (a) go forward (b) stop (c) turn left
5. 5.🤖 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
6. 6.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 29 cm and the light reading is 45. What does the robot do? (a) turn left (b) go forward (c) stop
7. 7.🤖 if (distance < 10) { turn right } else { go forward }
   The distance sensor reads 3 cm. What does the robot do? (a) turn right (b) go forward
8. 8.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
   The distance is 10 cm and the light reading is 45. What does the robot do? (a) go forward (b) stop (c) turn left
9. 9.🤖 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
10. 10.🤖 A robot is 72 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
11. 11.🤖 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
12. 12.🤖 A robot is 83 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 < 30) { turn right } else { go forward }
    The distance sensor reads 23 cm. What does the robot do? (a) go forward (b) turn right
14. 14.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the if part (b) the else part (c) neither part (d) both parts
15. 15.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 21 cm and the light reading is 10. What does the robot do? (a) stop (b) turn left (c) go forward
16. 16.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 12 cm. What does the robot do? (a) turn right (b) go forward
17. 17.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 30 cm. What does the robot do? (a) turn right (b) go forward
18. 18.🤖 A robot is 100 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
19. 19.🤖 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
20. 20.🤖 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) turn left (b) go forward (c) stop
21. 21.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 12 cm. What does the robot do? (a) turn right (b) go forward
22. 22.🤖 A robot is 34 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
23. 23.🤖 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
24. 24.🤖 A robot is 38 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
25. 25.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 42 cm. What does the robot do? (a) turn right (b) go forward
26. 26.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 5 cm and the light reading is 15. What does the robot do? (a) turn left (b) go forward (c) stop
27. 27.🤖 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
28. 28.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 17 cm. What does the robot do? (a) go forward (b) turn right
29. 29.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 16 cm and the light reading is 10. What does the robot do? (a) stop (b) turn left (c) go forward
30. 30.🤖 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
31. 31.🤖 A robot is 108 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
32. 32.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 10 cm. What does the robot do? (a) turn right (b) go forward
33. 33.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 20 cm. What does the robot do? (a) turn right (b) go forward
34. 34.🤖 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) go forward (b) stop (c) turn left
35. 35.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 11 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 36 cm and the light reading is 60. What does the robot do? (a) stop (b) go forward (c) turn left
37. 37.🤖 A robot is 89 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
38. 38.🤖 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) turn left (b) go forward (c) stop
39. 39.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 7 cm and the light reading is 20. 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 40 cm and the light reading is 30. What does the robot do? (a) go forward (b) turn left (c) stop

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