App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 495 · 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.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
2. 2.🔢 In a photo-post flow, which comes first: “write a caption” or “open the camera screen”? (a) open the camera screen (b) write a caption
3. 3.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Chat tab
   2. open “Map”
   3. open “Edit photo”
   Which screen are you on now? (a) Map (b) Edit photo (c) Feed (d) Chat
5. 5.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Help button: 64 px tall
   Done button: 24 px tall
   Next button: 64 px tall (a) Help (b) Next (c) Done
6. 6.Which of these fits saving in the cloud? (a) notes to read offline (b) the sound on/off setting (c) a class leaderboard (d) a draft you are typing
7. 7.Which of these is true of a wireframe? (a) has the real colours (b) has no real colours (c) uses the final pictures (d) looks like the real app
8. 8.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a phone case (c) a 3D printer (d) a microphone
9. 9.True or false: a big, easy tap area is good button design. (a) True (b) False
10. 10.Which of these is true of a final design? (a) is a quick sketch (b) shows where things go (c) uses plain grey boxes (d) uses the final pictures
11. 11.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 52 px tall
    Cancel button: 64 px tall
    Back button: 64 px tall
12. 12.Which of these is about UX (the experience)? (a) the theme colours (b) the icon shapes (c) how users feel after (d) the button colours
13. 13.🔘 Our rule: buttons are at least 48 px tall. The Next button is 20 px tall. How many px taller must it be?
14. 14.True or false: a final design has no real colours. (a) True (b) False
15. 15.Which colour pair is hard to read? (a) white on black (b) white on dark green (c) dark blue on black (d) black on pale grey
16. 16.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
17. 17.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
18. 18.🎨 Is this about UI or UX: the theme colours? (a) UI (b) UX
19. 19.True or false: a final design has the real colours. (a) False (b) True
20. 20.Which of these is true of a wireframe? (a) looks like the real app (b) uses plain grey boxes (c) shows the real fonts (d) uses the final pictures
21. 21.💾 What number does this code show?
    let songs = ["Rain", "Sunrise", "Monsoon"];
    songs.push("Stars");
    songs.push("Kites");
    show(songs.length);
22. 22.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
23. 23.Which of these is true of a final design? (a) shows where things go (b) looks like the real app (c) uses plain grey boxes (d) is a quick sketch
24. 24.True or false: a final design shows where things go. (a) False (b) True
25. 25.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Menu: 11 px
    Title: 16 px
    Footer: 24 px
    Body text: 21 px
27. 27.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ menu icon ]
    [ list of items ]
    [ Save button ]
    [ title text ] (a) Save button (b) menu icon (c) list of items
28. 28.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.Which of these is about UX (the experience)? (a) the theme colours (b) the icon shapes (c) how easy sign-up is (d) the screen layout
30. 30.🔢 In a sign-up flow, which comes FIRST? (a) see the home screen (b) make a password (c) tap “Sign up” (d) open the app
31. 31.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
32. 32.🧭 Which part of navigation hides extra links? (a) a tab bar (b) a menu button (c) the back button
33. 33.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) takes photos (d) plays music
34. 34.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) home screen (c) dead end (d) shortcut
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Label: 15 px
    Body text: 12 px
36. 36.🔢 In a photo-post flow, which comes first: “write a caption” or “add a filter”? (a) write a caption (b) add a filter
37. 37.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) icons with no labels (d) colour as the only clue
38. 38.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) tap “Start quiz” (c) pick an answer (d) read a question
39. 39.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ list of items ]
    [ top bar ]
    [ Add button ]
    [ search box ]
40. 40.💾 What number does this code show?
    let notes = ["Sports", "Science"];
    notes.push("Music");
    show(notes.length);

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