Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 74 · 40 questions

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.

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

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