Robotics Worksheet: Robot If / Else

Robotics lesson 23: If / else with sensors · Set 604 · 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) skip all sensors (b) charge itself (c) go faster always (d) choose using a sensor
2. 2.🤖 if (distance < 20) { turn right } else { go forward }
   The distance sensor reads 17 cm. What does the robot do? (a) go forward (b) turn right
3. 3.🤖 if (distance < 25) { turn right } else { go forward }
   The distance sensor reads 26 cm. What does the robot do? (a) go forward (b) turn right
4. 4.🤖 A robot is 101 cm from a wall. It runs:
   while (distance > 20) { forward 10 cm }
   stop
   How far from the wall does it stop (in cm)?
5. 5.🤖 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
6. 6.🤖 if (distance < 20) { turn right } else { go forward }
   The distance sensor reads 16 cm. What does the robot do? (a) go forward (b) turn right
7. 7.🤖 if (distance < 25) { turn right } else { go forward }
   The distance sensor reads 22 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 9 cm and the light reading is 30. What does the robot do? (a) stop (b) go forward (c) turn left
9. 9.🤖 if (distance < 20) { turn right } else { go forward }
   The distance sensor reads 21 cm. What does the robot do? (a) go forward (b) turn right
10. 10.🤖 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
11. 11.🤖 In “if (distance < 20)”, what runs when the distance is exactly 20? (a) the if part (b) both parts (c) neither part (d) the else part
12. 12.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 9 cm and the light reading is 10. What does the robot do? (a) go forward (b) stop (c) turn left
13. 13.🤖 if (distance < 25) { turn right } else { go forward }
    The distance sensor reads 18 cm. What does the robot do? (a) go forward (b) turn right
14. 14.🤖 A robot is 44 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 < 20) { turn right } else { go forward }
    The distance sensor reads 26 cm. What does the robot do? (a) turn right (b) go forward
16. 16.🤖 A robot is 93 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
17. 17.🤖 if (distance < 15) { turn right } else { go forward }
    The distance sensor reads 16 cm. What does the robot do? (a) turn right (b) go forward
18. 18.🤖 Obstacle avoiding: what should a robot do when something is close? (a) push it hard (b) stop or turn away (c) speed up (d) close its eyes
19. 19.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 9 cm and the light reading is 25. What does the robot do? (a) turn left (b) go forward (c) stop
20. 20.🤖 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
21. 21.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 33 cm and the light reading is 20. What does the robot do? (a) go forward (b) turn left (c) stop
22. 22.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 21 cm and the light reading is 35. What does the robot do? (a) stop (b) turn left (c) go forward
23. 23.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 35 cm. What does the robot do? (a) turn right (b) go forward
24. 24.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 23 cm and the light reading is 10. What does the robot do? (a) stop (b) turn left (c) go forward
25. 25.🤖 if (distance < 20) { turn right } else { go forward }
    The distance sensor reads 14 cm. What does the robot do? (a) go forward (b) turn right
26. 26.🤖 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
27. 27.🤖 A robot is 92 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
28. 28.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 23 cm. What does the robot do? (a) turn right (b) go forward
29. 29.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 37 cm and the light reading is 85. What does the robot do? (a) go forward (b) turn left (c) stop
30. 30.🤖 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
31. 31.🤖 A robot is 62 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.🤖 A robot is 46 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
33. 33.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 11 cm and the light reading is 90. What does the robot do? (a) go forward (b) stop (c) turn left
34. 34.🤖 if (distance < 30) { turn right } else { go forward }
    The distance sensor reads 29 cm. What does the robot do? (a) turn right (b) go forward
35. 35.🤖 if (distance < 10) { turn right } else { go forward }
    The distance sensor reads 22 cm. What does the robot do? (a) go forward (b) turn right
36. 36.🤖 A robot is 35 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How far from the wall does it stop (in cm)?
37. 37.🤖 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
38. 38.🤖 A robot is 43 cm from a wall. It runs:
    while (distance > 20) { forward 10 cm }
    stop
    How many times does it move forward?
39. 39.🤖 if (distance < 15) { stop } else if (light < 30) { turn left } else { go forward }
    The distance is 27 cm and the light reading is 85. 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 36 cm and the light reading is 45. 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