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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 878 · 40 questions
TalentJR

Remember (First, next, last): An algorithm = clear steps in the right order; a program = an algorithm written for a computer. To order steps, ask: what must happen before this step can happen? A mistake is a bug; finding and fixing it is debugging.

NameDateTime takenScore ___ / 40
  1. 1.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “brush all your teeth”? (a) brush all your teeth (b) wet the toothbrush
  2. 2.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) rinse your mouth (b) put on toothpaste (c) brush all your teeth
  3. 3.🔢 To read a storybook, which is the LAST step? (a) pick up the book (b) close the book (c) open the first page (d) read the story
  4. 4.🔢 To brush your teeth, which is the LAST step? (a) brush all your teeth (b) wet the toothbrush (c) rinse your mouth (d) put on toothpaste
  5. 5.🔢 To read a storybook, which is the FIRST step? (a) close the book (b) open the first page (c) pick up the book (d) read the story
  6. 6.🐞 What do we call a mistake in a program? (a) a byte (b) a cell (c) a sprite (d) a bug
  7. 7.🗺️ Which of these is an algorithm in everyday life? (a) a rainbow (b) a cloud (c) a pebble (d) a recipe
  8. 8.🔢 To play with a balloon, which do we do first: “take a balloon” or “tie the end”? (a) take a balloon (b) tie the end
  9. 9.🔢 To wash your hands, which is the LAST step? (a) rub them with soap (b) dry them with a towel (c) wet your hands (d) rinse off the soap
  10. 10.🔢 To play with a balloon, which is the LAST step? (a) tie the end (b) blow air into it (c) take a balloon (d) play with it
  11. 11.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “brush all your teeth”? (a) rinse your mouth (b) brush all your teeth
  12. 12.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) rub them with soap (b) dry them with a towel (c) wet your hands
  13. 13.🔢 To play with a balloon, what comes right after “blow air into it”? (a) play with it (b) take a balloon (c) tie the end
  14. 14.🔢 To read a storybook, what comes right after “read the story”? (a) pick up the book (b) close the book (c) open the first page
  15. 15.🔢 To plant a seed, which do we do first: “put the seed in” or “cover it with soil”? (a) put the seed in (b) cover it with soil
  16. 16.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) dig a small hole (c) water it (d) put the seed in
  17. 17.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “wet the toothbrush”? (a) put on toothpaste (b) wet the toothbrush
  18. 18.🔢 To plant a seed, which is the FIRST step? (a) water it (b) cover it with soil (c) dig a small hole (d) put the seed in
  19. 19.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “rinse your mouth”? (a) rinse your mouth (b) brush all your teeth
  20. 20.🔢 To play with a balloon, which do we do first: “blow air into it” or “play with it”? (a) play with it (b) blow air into it
  21. 21.🔢 To plant a seed, what comes right after “dig a small hole”? (a) water it (b) cover it with soil (c) put the seed in
  22. 22.🔢 To plant a seed, which do we do first: “dig a small hole” or “cover it with soil”? (a) dig a small hole (b) cover it with soil
  23. 23.🔢 To play with a balloon, which do we do first: “take a balloon” or “blow air into it”? (a) take a balloon (b) blow air into it
  24. 24.🔢 To play with a balloon, what comes right after “take a balloon”? (a) blow air into it (b) tie the end (c) play with it
  25. 25.🔢 To plant a seed, which do we do first: “cover it with soil” or “dig a small hole”? (a) cover it with soil (b) dig a small hole
  26. 26.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “put on toothpaste”? (a) brush all your teeth (b) put on toothpaste
  27. 27.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) order (c) colour (d) font
  28. 28.🤖 A computer follows the steps of a program ___. (a) backwards always (b) exactly as written (c) only on Sundays (d) the way it likes
  29. 29.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) water it (b) cover it with soil
  30. 30.🔢 To wash your hands, which do we do first: “rinse off the soap” or “dry them with a towel”? (a) dry them with a towel (b) rinse off the soap
  31. 31.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) wet the toothbrush (c) brush all your teeth
  32. 32.🔢 To wash your hands, which is the FIRST step? (a) rinse off the soap (b) rub them with soap (c) dry them with a towel (d) wet your hands
  33. 33.🔢 To play with a balloon, which do we do first: “blow air into it” or “take a balloon”? (a) blow air into it (b) take a balloon
  34. 34.🔢 To plant a seed, what comes right after “put the seed in”? (a) water it (b) cover it with soil (c) dig a small hole
  35. 35.🔢 To wash your hands, what comes right after “rub them with soap”? (a) rinse off the soap (b) wet your hands (c) dry them with a towel
  36. 36.🔢 To plant a seed, which do we do first: “put the seed in” or “dig a small hole”? (a) dig a small hole (b) put the seed in
  37. 37.🔢 To wash your hands, what comes right after “wet your hands”? (a) dry them with a towel (b) rub them with soap (c) rinse off the soap
  38. 38.📋 What do we call the steps written in a language a computer understands? (a) a program (b) a poem (c) a password (d) a painting
  39. 39.🔢 To play with a balloon, which is the FIRST step? (a) take a balloon (b) play with it (c) blow air into it (d) tie the end
  40. 40.🔢 To read a storybook, which do we do first: “close the book” or “pick up the book”? (a) close the book (b) pick up the book

Answer key

  1. wet the toothbrush
  2. put on toothpaste
  3. close the book
  4. rinse your mouth
  5. pick up the book
  6. a bug
  7. a recipe
  8. take a balloon
  9. dry them with a towel
  10. play with it
  11. brush all your teeth
  12. dry them with a towel
  13. tie the end
  14. close the book
  15. put the seed in
  16. water it
  17. wet the toothbrush
  18. dig a small hole
  19. brush all your teeth
  20. blow air into it
  21. put the seed in
  22. dig a small hole
  23. take a balloon
  24. blow air into it
  25. dig a small hole
  26. put on toothpaste
  27. order
  28. exactly as written
  29. cover it with soil
  30. rinse off the soap
  31. brush all your teeth
  32. wet your hands
  33. take a balloon
  34. cover it with soil
  35. rinse off the soap
  36. dig a small hole
  37. rub them with soap
  38. a program
  39. take a balloon
  40. pick up the book

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