← Debugging robot programs lesson New set →

Robotics Worksheet: Debugging Robot Programs

Robotics lesson 26: Debugging robot programs · Set 10 · 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 “find the buggy line”? (a) spot what went wrong (b) fix one thing (c) run the program (d) test it again
  2. 2.🔢 To debug a robot program, which is the FIRST step? (a) spot what went wrong (b) find the buggy line (c) run the program (d) fix one thing
  3. 3.🔢 To debug a robot program, what comes right after “run the program”? (a) find the buggy line (b) fix one thing (c) spot what went wrong (d) test it again
  4. 4.🐞 This program should draw a regular hexagon (6 equal sides), but the shape does not close:
    repeat 6 { forward 10 cm; turn right 120° }
    What should 120 be changed to?
  5. 5.🐞 A robot turns the wrong way at every corner. What is the likely bug? (a) the floor is clean (b) battery is too new (c) wheels are too round (d) left and right mixed up
  6. 6.🔢 To debug a robot program, what comes right after “spot what went wrong”? (a) run the program (b) find the buggy line (c) test it again (d) fix one thing
  7. 7.🐞 A mistake in a program is called a … (a) bug (b) gear (c) loop (d) sensor
  8. 8.🐞 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, 2). Its program:
    1. forward 3
    2. turn right
    3. forward 2
    It stops at (7, 3) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  9. 9.🔢 To debug a robot program, which comes first: “fix one thing” or “run the program”? (a) fix one thing (b) run the program
  10. 10.🔢 To debug a robot program, which is the LAST step? (a) find the buggy line (b) run the program (c) test it again (d) fix one thing
  11. 11.🐞 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?
  12. 12.🐞 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 (7, 6). Its program:
    1. forward 6
    2. turn right
    3. forward 4
    It stops at (8, 6) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  13. 13.🐞 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 (3, 6). Its program:
    1. forward 5
    2. turn right
    3. forward 2
    It stops at (7, 6) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  14. 14.🐞 A robot starts at (4, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (2, 4). Its program:
    1. forward 3
    2. turn left
    3. forward 1
    It stops at (3, 4) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  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 72° }
    What should 72 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 60° }
    What should 60 be changed to?
  17. 17.🐞 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?
  18. 18.🐞 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, 8). Its program:
    1. forward 7
    2. turn right
    3. forward 3
    It stops at (8, 9) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  19. 19.🐞 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?
  20. 20.🐞 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, 3). Its program:
    1. forward 4
    2. turn left
    3. forward 1
    It stops at (3, 4) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  21. 21.🐞 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
  22. 22.🐞 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 4
    2. turn right
    3. forward 3
    It stops at (8, 4) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  23. 23.🐞 A robot starts at (4, 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, 4). Its program:
    1. forward 3
    2. turn right
    3. forward 1
    It stops at (5, 4) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  24. 24.🐞 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?
  25. 25.🐞 This program should draw a regular hexagon (6 equal sides), but the shape does not close:
    repeat 6 { forward 10 cm; turn right 90° }
    What should 90 be changed to?
  26. 26.🔢 To debug a robot program, which comes first: “run the program” or “fix one thing”? (a) fix one thing (b) run the program
  27. 27.🐞 A robot starts at (4, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (2, 4). Its program:
    1. forward 2
    2. turn left
    3. forward 2
    It stops at (2, 3) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  28. 28.🐞 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 (5, 3). Its program:
    1. forward 4
    2. turn right
    3. forward 1
    It stops at (5, 4) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  29. 29.🐞 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 (6, 5). Its program:
    1. forward 3
    2. turn left
    3. forward 2
    It stops at (2, 5) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  30. 30.🐞 This program should draw a regular octagon (8 equal sides), but it leaves a gap:
    repeat 5 { forward 10 cm; turn right 45° }
    What should the number 5 after “repeat” be?
  31. 31.🐞 This program should draw a regular hexagon (6 equal sides), but it leaves a gap:
    repeat 4 { forward 10 cm; turn right 60° }
    What should the number 4 after “repeat” be?
  32. 32.🔢 To debug a robot program, which comes first: “fix one thing” or “find the buggy line”? (a) find the buggy line (b) fix one thing
  33. 33.🐞 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 (7, 4). Its program:
    1. forward 5
    2. turn right
    3. forward 3
    It stops at (7, 5) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  34. 34.🔢 To debug a robot program, which comes first: “spot what went wrong” or “run the program”? (a) spot what went wrong (b) run the program
  35. 35.🐞 This program should draw a regular square (4 equal sides), but the shape does not close:
    repeat 4 { forward 10 cm; turn right 45° }
    What should 45 be changed to?
  36. 36.🔢 To debug a robot program, which comes first: “run the program” or “test it again”? (a) run the program (b) test it again
  37. 37.🐞 This program should draw a regular triangle (3 equal sides), but the shape does not close:
    repeat 3 { forward 10 cm; turn right 90° }
    What should 90 be changed to?
  38. 38.🔢 To debug a robot program, which comes first: “find the buggy line” or “spot what went wrong”? (a) spot what went wrong (b) find the buggy line
  39. 39.🐞 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, 5). Its program:
    1. forward 4
    2. turn right
    3. forward 2
    It stops at (7, 5) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  40. 40.🐞 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, 6). Its program:
    1. forward 4
    2. turn right
    3. forward 1
    It stops at (5, 6) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2

Answer key

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

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