App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 437 · 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.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 24 px
   Hint: 19 px
   Menu: 16 px
   Footer: 25 px
   Label: 9 px (a) Body text (b) Hint (c) Label (d) Menu
3. 3.Which of these fits saving in the cloud? (a) your last game level (b) a draft you are typing (c) a shared to-do list (d) the sound on/off setting
4. 4.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
5. 5.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Done button: 32 px tall
   Cancel button: 44 px tall
   Next button: 32 px tall
   Help button: 48 px tall
6. 6.🎨 Fewer taps to finish a task usually means ___. (a) better UX (b) worse UX (c) a bigger app (d) more colours
7. 7.💾 Saving data in the cloud lets you ___. (a) skip the internet (b) use it on any device (c) shrink the app (d) never need a password
8. 8.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
   [ list of items ]
   [ tab bar ]
   [ search box ]
   [ filter buttons ]
   [ top bar ]
   [ title text ] (a) search box (b) list of items (c) filter buttons (d) title text
9. 9.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ filter buttons ]
   [ Add button ]
   [ tab bar ]
   [ list of items ]
   [ big picture ] (a) Add button (b) filter buttons (c) big picture (d) tab bar
10. 10.💾 pop() takes off the last item. What does this code show?
    let friends = ["Riya", "Aman", "Kabir", "Zoya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Zoya (b) Aman (c) Kabir (d) Riya
11. 11.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) tab bar (c) home screen (d) shortcut
12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Video”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
13. 13.Which of these is about UX (the experience)? (a) the button colours (b) the icon shapes (c) how many taps it takes (d) the font size
14. 14.💾 What does this code show? (Positions start at 0.)
    let notes = ["Music", "Art", "Maths", "Science"];
    show(notes[2]); (a) Music (b) Science (c) Maths (d) Art
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 68 px tall
    Start button: 52 px tall
    Cancel button: 40 px tall (a) Next (b) Start (c) Cancel
16. 16.🧭 Which part of navigation switches main sections? (a) a tab bar (b) the back button (c) a menu button
17. 17.🎨 UI stands for user ___. (a) internet (b) input (c) interface (d) idea
18. 18.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) shows where things go (d) uses the final pictures
19. 19.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
20. 20.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
21. 21.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 36 px tall
    Start button: 64 px tall
    Send button: 68 px tall (a) Help (b) Send (c) Start
22. 22.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) you send a message (c) the phone is lost (d) the app is closed
23. 23.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) big touch targets
24. 24.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ big picture ]
    [ title text ]
    [ menu icon ]
    [ list of items ]
    [ Add button ]
    [ filter buttons ] (a) Add button (b) list of items (c) menu icon (d) big picture
25. 25.Which of these fits saving in the cloud? (a) your last game level (b) chat messages to friends (c) a draft you are typing (d) notes to read offline
26. 26.💾 Which works with no internet at all? (a) a cloud leaderboard (b) data saved on the phone (c) a cloud backup (d) a shared chat
27. 27.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UX but poor UI (c) no UI at all (d) good UI but poor UX
28. 28.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
29. 29.Which of these is about UI (the look)? (a) whether users get lost (b) how easy sign-up is (c) the font size (d) how fast a task is done
30. 30.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) tiny tap areas (d) colour as the only clue
31. 31.True or false: a class leaderboard fits saving on the phone. (a) True (b) False
32. 32.True or false: your last game level fits saving in the cloud. (a) False (b) True
33. 33.🎨 UX stands for user ___. (a) extra (b) example (c) experience (d) express
34. 34.🔍 Which is the odd one out? (a) the font size (b) the icon shapes (c) the button colours (d) whether users get lost
35. 35.🔢 In a sign-up flow, which comes first: “open the app” or “type name and email”? (a) type name and email (b) open the app
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Menu: 26 px
    Body text: 14 px
    Footer: 24 px
    Title: 20 px (a) Footer (b) Menu (c) Label (d) Body text
37. 37.🔢 In a sign-up flow, which comes FIRST? (a) enter the code sent (b) open the app (c) see the home screen (d) make a password
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Friend list”
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Hint: 20 px
    Caption: 17 px
    Title: 11 px
    Label: 13 px
40. 40.True or false: a tiny 20 px button is good button design. (a) False (b) True

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