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Robotics Worksheet: Debugging Robot Programs

Robotics lesson 26: Debugging robot programs · Set 63 · 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 (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 right
    3. forward 2
    It stops at (6, 7) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  2. 2.🐞 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?
  3. 3.🐞 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?
  4. 4.🐞 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, 2). Its program:
    1. forward 3
    2. turn right
    3. forward 3
    It stops at (8, 3) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  5. 5.🐞 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 5
    2. turn right
    3. forward 1
    It stops at (5, 5) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  6. 6.🐞 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?
  7. 7.🐞 A robot turns the wrong way at every corner. What is the likely bug? (a) wheels are too round (b) the floor is clean (c) left and right mixed up (d) battery is too new
  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 45° }
    What should 45 be changed to?
  9. 9.🐞 Why change only one thing at a time when debugging? (a) to save paper (b) to make it slower (c) to see what fixed it (d) to confuse others
  10. 10.🐞 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, 4). Its program:
    1. forward 2
    2. turn right
    3. forward 1
    It stops at (6, 4) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  11. 11.🐞 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?
  12. 12.🐞 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?
  13. 13.🐞 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 3
    2. turn right
    3. forward 3
    It stops at (7, 3) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  14. 14.🔢 To debug a robot program, which comes first: “spot what went wrong” or “run the program”? (a) run the program (b) spot what went wrong
  15. 15.🔢 To debug a robot program, what comes right after “spot what went wrong”? (a) test it again (b) run the program (c) find the buggy line (d) fix one thing
  16. 16.🐞 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?
  17. 17.🔢 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
  18. 18.🐞 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?
  19. 19.🐞 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?
  20. 20.🐞 A mistake in a program is called a … (a) sensor (b) loop (c) gear (d) bug
  21. 21.🔢 To debug a robot program, which comes first: “find the buggy line” or “test it again”? (a) find the buggy line (b) test it again
  22. 22.🐞 This program should draw a regular octagon (8 equal sides), but it leaves a gap:
    repeat 2 { forward 10 cm; turn right 45° }
    What should the number 2 after “repeat” be?
  23. 23.🐞 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?
  24. 24.🐞 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 4
    2. turn right
    3. forward 3
    It stops at (8, 5) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  25. 25.🐞 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?
  26. 26.🐞 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, 4). Its program:
    1. forward 4
    2. turn left
    3. forward 2
    It stops at (3, 4) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  27. 27.🔢 To debug a robot program, which is the FIRST step? (a) fix one thing (b) spot what went wrong (c) run the program (d) find the buggy line
  28. 28.🐞 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 2 (c) line 1
  29. 29.🐞 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, 4). Its program:
    1. forward 4
    2. turn right
    3. forward 3
    It stops at (8, 4) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  30. 30.🐞 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?
  31. 31.🐞 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
  32. 32.🐞 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?
  33. 33.🐞 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?
  34. 34.🔢 To debug a robot program, which is the LAST step? (a) spot what went wrong (b) find the buggy line (c) fix one thing (d) test it again
  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 120° }
    What should 120 be changed to?
  36. 36.🐞 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?
  37. 37.🐞 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, 2). Its program:
    1. forward 2
    2. turn left
    3. forward 4
    It stops at (0, 2) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  38. 38.🐞 This program should draw a regular triangle (3 equal sides), but the shape does not close:
    repeat 3 { forward 10 cm; turn right 72° }
    What should 72 be changed to?
  39. 39.🔢 To debug a robot program, which comes first: “test it again” or “fix one thing”? (a) fix one thing (b) test it again
  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 (3, 4). Its program:
    1. forward 4
    2. turn right
    3. forward 2
    It stops at (7, 4) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2

Answer key

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

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