← Debugging robot programs lesson New set →

Robotics Worksheet: Debugging Robot Programs

Robotics lesson 26: Debugging robot programs · Set 143 · 40 questions
TalentJR

Robot tip (Compare and fix one thing): Run it, spot what went wrong, find the buggy line, fix one thing, test again. Wrong side → a turn is the wrong way. Too far or too short → a forward number is wrong. A shape that does not close → the turn should be 360 ÷ sides; a gap → the repeat number should equal the sides.

NameDateTime takenScore ___ / 40
  1. 1.🔢 To debug a robot program, what comes right after “fix one thing”? (a) run the program (b) test it again (c) find the buggy line (d) spot what went wrong
  2. 2.🐞 A robot starts at (4, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (2, 6). Its program:
    1. forward 4
    2. turn right
    3. forward 2
    It stops at (6, 6) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  3. 3.🐞 A robot starts at (4, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (1, 5). Its program:
    1. forward 5
    2. turn left
    3. forward 2
    It stops at (2, 5) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  4. 4.🐞 This program should draw a regular square (4 equal sides), but it leaves a gap:
    repeat 2 { forward 10 cm; turn right 90° }
    What should the number 2 after “repeat” be?
  5. 5.🐞 A robot starts at (5, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (4, 6). Its program:
    1. forward 3
    2. turn left
    3. forward 1
    It stops at (4, 5) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  6. 6.🐞 A robot starts at (5, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (8, 7). Its program:
    1. forward 6
    2. turn left
    3. forward 3
    It stops at (2, 7) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  7. 7.🐞 A robot turns the wrong way at every corner. What is the likely bug? (a) left and right mixed up (b) wheels are too round (c) battery is too new (d) the floor is clean
  8. 8.🐞 This program should draw a regular hexagon (6 equal sides), but the shape does not close:
    repeat 6 { forward 10 cm; turn right 72° }
    What should 72 be changed to?
  9. 9.🐞 Why change only one thing at a time when debugging? (a) to see what fixed it (b) to save paper (c) to confuse others (d) to make it slower
  10. 10.🐞 This program should draw a regular triangle (3 equal sides), but it leaves a gap:
    repeat 2 { forward 10 cm; turn right 120° }
    What should the number 2 after “repeat” be?
  11. 11.🔢 To debug a robot program, which comes first: “test it again” or “spot what went wrong”? (a) test it again (b) spot what went wrong
  12. 12.🐞 A mistake in a program is called a … (a) gear (b) sensor (c) loop (d) bug
  13. 13.🔢 To debug a robot program, which comes first: “test it again” or “run the program”? (a) test it again (b) run the program
  14. 14.🐞 This program should draw a regular octagon (8 equal sides), but the shape does not close:
    repeat 8 { forward 10 cm; turn right 90° }
    What should 90 be changed to?
  15. 15.🐞 This program should draw a regular square (4 equal sides), but the shape does not close:
    repeat 4 { forward 10 cm; turn right 60° }
    What should 60 be changed to?
  16. 16.🐞 This program should draw a regular octagon (8 equal sides), but the shape does not close:
    repeat 8 { forward 10 cm; turn right 120° }
    What should 120 be changed to?
  17. 17.🐞 A robot starts at (5, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (2, 5). Its program:
    1. forward 4
    2. turn left
    3. forward 3
    It stops at (2, 4) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  18. 18.🐞 This program should draw a regular pentagon (5 equal sides), but it leaves a gap:
    repeat 2 { forward 10 cm; turn right 72° }
    What should the number 2 after “repeat” be?
  19. 19.🔢 To debug a robot program, what comes right after “run the program”? (a) test it again (b) fix one thing (c) find the buggy line (d) spot what went wrong
  20. 20.🔢 To debug a robot program, which comes first: “spot what went wrong” or “fix one thing”? (a) fix one thing (b) spot what went wrong
  21. 21.🐞 A robot starts at (5, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (8, 3). Its program:
    1. forward 3
    2. turn left
    3. forward 3
    It stops at (2, 3) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  22. 22.🐞 This program should draw a regular octagon (8 equal sides), but the shape does not close:
    repeat 8 { forward 10 cm; turn right 72° }
    What should 72 be changed to?
  23. 23.🐞 A robot starts at (5, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (8, 4). Its program:
    1. forward 3
    2. turn right
    3. forward 3
    It stops at (8, 5) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  24. 24.🐞 A robot starts at (4, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (5, 7). Its program:
    1. forward 5
    2. turn left
    3. forward 1
    It stops at (3, 7) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  25. 25.🔢 To debug a robot program, what comes right after “spot what went wrong”? (a) find the buggy line (b) run the program (c) test it again (d) fix one thing
  26. 26.🐞 This program should draw a regular pentagon (5 equal sides), but the shape does not close:
    repeat 5 { forward 10 cm; turn right 120° }
    What should 120 be changed to?
  27. 27.🐞 A robot starts at (4, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (3, 5). Its program:
    1. forward 4
    2. turn left
    3. forward 1
    It stops at (3, 6) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  28. 28.🔢 To debug a robot program, which is the FIRST step? (a) test it again (b) spot what went wrong (c) fix one thing (d) run the program
  29. 29.🐞 A robot starts at (5, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (6, 7). Its program:
    1. forward 6
    2. turn right
    3. forward 2
    It stops at (7, 7) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  30. 30.🐞 This program should draw a regular square (4 equal sides), but the shape does not close:
    repeat 4 { forward 10 cm; turn right 120° }
    What should 120 be changed to?
  31. 31.🔢 To debug a robot program, which is the LAST step? (a) run the program (b) fix one thing (c) spot what went wrong (d) test it again
  32. 32.🐞 A robot starts at (4, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (3, 2). Its program:
    1. forward 3
    2. turn left
    3. forward 1
    It stops at (3, 3) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  33. 33.🐞 This program should draw a regular pentagon (5 equal sides), but it leaves a gap:
    repeat 4 { forward 10 cm; turn right 72° }
    What should the number 4 after “repeat” be?
  34. 34.🐞 This program should draw a regular triangle (3 equal sides), but the shape does not close:
    repeat 3 { forward 10 cm; turn right 60° }
    What should 60 be changed to?
  35. 35.🐞 A robot starts at (4, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (1, 6). Its program:
    1. forward 6
    2. turn left
    3. forward 4
    It stops at (0, 6) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  36. 36.🔢 To debug a robot program, what comes right after “find the buggy line”? (a) test it again (b) run the program (c) spot what went wrong (d) fix one thing
  37. 37.🐞 A robot starts at (5, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (2, 5). Its program:
    1. forward 2
    2. turn left
    3. forward 3
    It stops at (2, 4) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  38. 38.🐞 A robot starts at (4, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (7, 7). Its program:
    1. forward 5
    2. turn left
    3. forward 3
    It stops at (1, 7) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  39. 39.🐞 A robot starts at (4, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (5, 8). Its program:
    1. forward 6
    2. turn left
    3. forward 1
    It stops at (3, 8) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  40. 40.🐞 A robot starts at (5, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (7, 5). Its program:
    1. forward 5
    2. turn left
    3. forward 2
    It stops at (3, 5) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2

Answer key

  1. test it again
  2. line 2
  3. line 3
  4. 4
  5. line 1
  6. line 2
  7. left and right mixed up
  8. 60
  9. to see what fixed it
  10. 3
  11. spot what went wrong
  12. bug
  13. run the program
  14. 45
  15. 90
  16. 45
  17. line 1
  18. 5
  19. spot what went wrong
  20. spot what went wrong
  21. line 2
  22. 45
  23. line 1
  24. line 2
  25. find the buggy line
  26. 72
  27. line 1
  28. run the program
  29. line 3
  30. 90
  31. test it again
  32. line 1
  33. 5
  34. 120
  35. line 3
  36. fix one thing
  37. line 1
  38. line 2
  39. line 2
  40. line 2

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