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Robotics Worksheet: Debugging Robot Programs

Robotics lesson 26: Debugging robot programs · Set 85 · 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.🐞 This program should draw a regular hexagon (6 equal sides), but it leaves a gap:
    repeat 5 { forward 10 cm; turn right 60° }
    What should the number 5 after “repeat” be?
  2. 2.🔢 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
  3. 3.🐞 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 5
    2. turn left
    3. forward 2
    It stops at (3, 5) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  4. 4.🐞 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?
  5. 5.🔢 To debug a robot program, which comes first: “find the buggy line” or “test it again”? (a) test it again (b) find the buggy line
  6. 6.🐞 Why change only one thing at a time when debugging? (a) to make it slower (b) to save paper (c) to confuse others (d) to see what fixed it
  7. 7.🔢 To debug a robot program, which comes first: “run the program” or “fix one thing”? (a) fix one thing (b) run the program
  8. 8.🐞 A mistake in a program is called a … (a) loop (b) sensor (c) bug (d) gear
  9. 9.🔢 To debug a robot program, which is the LAST step? (a) run the program (b) find the buggy line (c) spot what went wrong (d) test it again
  10. 10.🐞 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?
  11. 11.🐞 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, 3). Its program:
    1. forward 2
    2. turn right
    3. forward 3
    It stops at (7, 2) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  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.🐞 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, 4). Its program:
    1. forward 3
    2. turn left
    3. forward 1
    It stops at (3, 3) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  14. 14.🐞 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 (6, 2). Its program:
    1. forward 2
    2. turn right
    3. forward 3
    It stops at (7, 2) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  15. 15.🔢 To debug a robot program, which comes first: “find the buggy line” or “spot what went wrong”? (a) find the buggy line (b) spot what went wrong
  16. 16.🐞 This program should draw a regular hexagon (6 equal sides), but it leaves a gap:
    repeat 3 { forward 10 cm; turn right 60° }
    What should the number 3 after “repeat” be?
  17. 17.🐞 A robot turns the wrong way at every corner. What is the likely bug? (a) the floor is clean (b) wheels are too round (c) battery is too new (d) left and right mixed up
  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 (4, 8). Its program:
    1. forward 5
    2. turn left
    3. forward 1
    It stops at (4, 7) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  19. 19.🔢 To debug a robot program, what comes right after “find the buggy line”? (a) run the program (b) fix one thing (c) test it again (d) spot what went wrong
  20. 20.🐞 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?
  21. 21.🔢 To debug a robot program, which comes first: “spot what went wrong” or “test it again”? (a) test it again (b) spot what went wrong
  22. 22.🔢 To debug a robot program, which comes first: “test it again” or “fix one thing”? (a) fix one thing (b) test it again
  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 120° }
    What should 120 be changed to?
  24. 24.🐞 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?
  25. 25.🐞 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?
  26. 26.🐞 This program should draw a regular square (4 equal sides), but it leaves a gap:
    repeat 3 { forward 10 cm; turn right 90° }
    What should the number 3 after “repeat” be?
  27. 27.🐞 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?
  28. 28.🔢 To debug a robot program, what comes right after “spot what went wrong”? (a) fix one thing (b) test it again (c) run the program (d) find the buggy line
  29. 29.🐞 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?
  30. 30.🐞 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 4
    2. turn right
    3. forward 2
    It stops at (6, 4) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  31. 31.🐞 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?
  32. 32.🐞 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 5
    2. turn left
    3. forward 4
    It stops at (1, 5) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  33. 33.🐞 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, 5). Its program:
    1. forward 4
    2. turn left
    3. forward 3
    It stops at (2, 5) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  34. 34.🔢 To debug a robot program, what comes right after “run the program”? (a) find the buggy line (b) spot what went wrong (c) test it again (d) fix one thing
  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.🐞 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, 5). Its program:
    1. forward 5
    2. turn right
    3. forward 4
    It stops at (8, 5) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  37. 37.🔢 To debug a robot program, which comes first: “spot what went wrong” or “find the buggy line”? (a) find the buggy line (b) spot what went wrong
  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 (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 1 (b) line 3 (c) line 2
  39. 39.🐞 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 2
    2. turn right
    3. forward 1
    It stops at (5, 2) 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 (5, 4). Its program:
    1. forward 3
    2. turn right
    3. forward 1
    It stops at (5, 5) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2

Answer key

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

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