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Robotics Worksheet: Debugging Robot Programs

Robotics lesson 26: Debugging robot programs · Set 31 · 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.🐞 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, 4). Its program:
    1. forward 3
    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
  2. 2.🐞 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 (4, 2). Its program:
    1. forward 3
    2. turn left
    3. forward 1
    It stops at (4, 3) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  3. 3.🔢 To debug a robot program, which comes first: “run the program” or “spot what went wrong”? (a) spot what went wrong (b) run the program
  4. 4.🐞 A mistake in a program is called a … (a) gear (b) loop (c) sensor (d) bug
  5. 5.🐞 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 (6, 5). Its program:
    1. forward 5
    2. turn left
    3. forward 1
    It stops at (4, 5) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  6. 6.🐞 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, 4). 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 3 (c) line 2
  7. 7.🔢 To debug a robot program, which comes first: “spot what went wrong” or “find the buggy line”? (a) spot what went wrong (b) find the buggy line
  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 90° }
    What should 90 be changed to?
  9. 9.🐞 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 (1, 7). Its program:
    1. forward 5
    2. turn right
    3. forward 3
    It stops at (7, 7) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  10. 10.🐞 A robot turns the wrong way at every corner. What is the likely bug? (a) battery is too new (b) the floor is clean (c) left and right mixed up (d) wheels are too round
  11. 11.🐞 This program should draw a regular hexagon (6 equal sides), but it leaves a gap:
    repeat 2 { forward 10 cm; turn right 60° }
    What should the number 2 after “repeat” be?
  12. 12.🐞 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?
  13. 13.🐞 This program should draw a regular octagon (8 equal sides), but it leaves a gap:
    repeat 4 { forward 10 cm; turn right 45° }
    What should the number 4 after “repeat” be?
  14. 14.🐞 Why change only one thing at a time when debugging? (a) to confuse others (b) to make it slower (c) to save paper (d) to see what fixed it
  15. 15.🔢 To debug a robot program, which is the LAST step? (a) run the program (b) spot what went wrong (c) fix one thing (d) test it again
  16. 16.🐞 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 (7, 7). Its program:
    1. forward 7
    2. turn right
    3. forward 3
    It stops at (7, 8) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  17. 17.🐞 This program should draw a regular pentagon (5 equal sides), but the shape does not close:
    repeat 5 { forward 10 cm; turn right 90° }
    What should 90 be changed to?
  18. 18.🐞 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 (5, 7). Its program:
    1. forward 6
    2. turn left
    3. forward 1
    It stops at (3, 7) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  19. 19.🐞 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 3 (b) line 1 (c) line 2
  20. 20.🐞 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, 5). Its program:
    1. forward 3
    2. turn right
    3. forward 2
    It stops at (6, 5) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  21. 21.🔢 To debug a robot program, what comes right after “spot what went wrong”? (a) fix one thing (b) run the program (c) find the buggy line (d) test it again
  22. 22.🔢 To debug a robot program, which comes first: “find the buggy line” or “fix one thing”? (a) fix one thing (b) find the buggy line
  23. 23.🐞 This program should draw a regular triangle (3 equal sides), but the shape does not close:
    repeat 3 { forward 10 cm; turn right 45° }
    What should 45 be changed to?
  24. 24.🐞 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, 8). Its program:
    1. forward 6
    2. turn right
    3. forward 3
    It stops at (8, 8) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  25. 25.🐞 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?
  26. 26.🐞 This program should draw a regular octagon (8 equal sides), but it leaves a gap:
    repeat 6 { forward 10 cm; turn right 45° }
    What should the number 6 after “repeat” be?
  27. 27.🐞 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?
  28. 28.🐞 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, 5). Its program:
    1. forward 3
    2. turn left
    3. forward 1
    It stops at (3, 5) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  29. 29.🔢 To debug a robot program, which comes first: “run the program” or “fix one thing”? (a) fix one thing (b) run the program
  30. 30.🐞 This program should draw a regular pentagon (5 equal sides), but it leaves a gap:
    repeat 3 { forward 10 cm; turn right 72° }
    What should the number 3 after “repeat” be?
  31. 31.🐞 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?
  32. 32.🐞 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 right
    3. forward 2
    It stops at (6, 8) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  33. 33.🐞 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?
  34. 34.🐞 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, 5). 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
  35. 35.🐞 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?
  36. 36.🐞 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 (7, 5). Its program:
    1. forward 3
    2. turn right
    3. forward 2
    It stops at (7, 4) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  37. 37.🐞 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, 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 1 (b) line 2 (c) line 3
  38. 38.🐞 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 2
    2. turn left
    3. forward 2
    It stops at (3, 2) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  39. 39.🐞 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?
  40. 40.🔢 To debug a robot program, what comes right after “run the program”? (a) spot what went wrong (b) test it again (c) fix one thing (d) find the buggy line

Answer key

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

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