App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 289 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.True or false: notes to read offline fits saving in the cloud. (a) False (b) True
2. 2.💾 pop() takes off the last item. What does this code show?
   let notes = ["Sports", "Maths", "Music"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Maths (b) Sports (c) Music
3. 3.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
4. 4.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) a type of font (d) the path through screens
5. 5.Which colour pair is easy to read? (a) yellow on white (b) dark blue on black (c) dark blue on white (d) light grey on white
6. 6.💾 Data saved only on the phone is lost when ___. (a) the phone is lost (b) the app is closed (c) the screen turns off (d) you send a message
7. 7.Which of these is about UI (the look)? (a) how fast a task is done (b) how users feel after (c) how easy sign-up is (d) the icon shapes
8. 8.Which of these is true of a wireframe? (a) uses the final pictures (b) uses plain grey boxes (c) has the real colours (d) shows the real fonts
9. 9.True or false: chat messages to friends fits saving in the cloud. (a) True (b) False
10. 10.💾 What number does this code show?
    let lives = 9;
    lives = lives - 5;
    lives = lives + 2;
    show(lives);
11. 11.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Score card”
    3. open “Friend list”
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
13. 13.Which of these is about UI (the look)? (a) how users feel after (b) how fast a task is done (c) how easy sign-up is (d) the font size
14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pay → Cart → Address → Menu → Search
    Design B: Home → Results → Shop → Cart
15. 15.🔢 In a photo-post flow, which comes first: “open the camera screen” or “take the photo”? (a) open the camera screen (b) take the photo
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Profile tab
    3. open “Map”
    4. tap the Home tab
    5. open “Match report”
    Which screen are you on now? (a) Edit photo (b) Match report (c) Home (d) Map
17. 17.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “make a password”? (a) tap “Sign up” (b) make a password
18. 18.🔍 Which is the odd one out? (a) the button colours (b) the theme colours (c) how users feel after (d) the icon shapes
19. 19.Which of these is about UX (the experience)? (a) the theme colours (b) how fast a task is done (c) the button colours (d) the font size
20. 20.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
21. 21.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) see the final score (b) read a question (c) see if it is right (d) tap “Start quiz”
22. 22.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Science", "Music", "Art"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Science (b) Art (c) Music (d) Maths
23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Badges”
    3. open “Score card”
    4. tap Back
    Which screen are you on now? (a) Score card (b) Feed (c) Chat (d) Badges
24. 24.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Results → Offers
    Design B: Home → Pay → Shop → Confirm → Menu (a) Design B (b) Design A
25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Match report”
    3. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Label: 22 px
    Menu: 22 px
    Body text: 26 px
    Footer: 9 px (a) Menu (b) Hint (c) Label (d) Footer
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Label: 11 px
    Body text: 18 px
28. 28.Which of these is true of a wireframe? (a) has no real colours (b) uses the final pictures (c) shows the real fonts (d) looks like the real app
29. 29.True or false: a clear word like Save is poor button design. (a) False (b) True
30. 30.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Confirm → Item → Search → Shop
    Design B: Home → Offers → Address → Item (a) Design A (b) Design B
31. 31.Which of these is true of a wireframe? (a) is a quick sketch (b) looks like the real app (c) has the real colours (d) shows the real fonts
32. 32.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) a dead end (c) the same screen (d) a random page
33. 33.Which colour pair is easy to read? (a) red on green (b) pale pink on white (c) yellow on white (d) white on black
34. 34.Which of these is about UX (the experience)? (a) how many taps it takes (b) the button colours (c) the screen layout (d) the theme colours
35. 35.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
36. 36.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 36 px tall
    Back button: 64 px tall
    Save button: 36 px tall
    Next button: 36 px tall
37. 37.✏️ What is the easiest way to draw a first wireframe? (a) a 3D printer (b) a microphone (c) pencil and paper (d) a phone case
38. 38.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Cart → Shop → Results → Size
    Design B: Home → Offers → Size
40. 40.True or false: buttons almost touching is poor button design. (a) False (b) True

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