App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 528 · 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.💾 What number does this code show?
   let score = 4;
   score = score - 2;
   score = score + 2;
   show(score);
2. 2.🖼️ How many parts (boxes) does this wireframe have?
   [ top bar ]
   [ title text ]
   [ filter buttons ]
   [ big picture ]
3. 3.🖼️ How many parts (boxes) does this wireframe have?
   [ list of items ]
   [ top bar ]
   [ Save button ]
   [ big picture ]
4. 4.True or false: buttons almost touching is good button design. (a) False (b) True
5. 5.🔢 In a quiz-app flow, which comes first: “see if it is right” or “read a question”? (a) read a question (b) see if it is right
6. 6.Which of these is about UI (the look)? (a) the theme colours (b) how easy sign-up is (c) how fast a task is done (d) how users feel after
7. 7.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Me tab
   2. open “Edit photo”
   3. tap Back
   4. open “Match report”
   5. tap the Lessons tab
   How many times must you tap Back to reach the main screen of this tab?
9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Me tab
   2. open “Match report”
   3. open “Match report”
   4. tap the Me tab
   Which screen are you on now? (a) Match report (b) Quiz (c) Me (d) Lessons
10. 10.✏️ Why draw a wireframe before coding? (a) it saves data (b) it adds colours (c) it runs the app (d) changes are quick
11. 11.Which of these is about UX (the experience)? (a) the button colours (b) whether users get lost (c) the font size (d) the theme colours
12. 12.Which colour pair is easy to read? (a) black on pale grey (b) light grey on white (c) pale pink on white (d) yellow on white
13. 13.💾 What number does this code show?
    let songs = ["Sunrise", "Kites", "Stars", "Rain"];
    songs.push("Monsoon");
    songs.push("Ocean");
    show(songs.length);
14. 14.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 60 px tall
    Next button: 40 px tall
    Back button: 56 px tall
    Cancel button: 64 px tall
15. 15.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
16. 16.🔢 In a sign-up flow, which comes first: “type name and email” or “enter the code sent”? (a) enter the code sent (b) type name and email
17. 17.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
18. 18.True or false: a final design looks like the real app. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) the icon shapes (b) how users feel after (c) the screen layout (d) the theme colours
20. 20.💾 Which works with no internet at all? (a) a cloud leaderboard (b) a shared chat (c) data saved on the phone (d) a cloud backup
21. 21.🎨 UI stands for user ___. (a) idea (b) input (c) internet (d) interface
22. 22.True or false: strong colour contrast is poor button design. (a) True (b) False
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Footer: 20 px
    Hint: 16 px
    Title: 15 px
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) text that can grow (d) big touch targets
25. 25.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Menu → Offers → Address
    Design B: Home → Item → Menu
26. 26.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Hint: 16 px
    Caption: 13 px
    Menu: 13 px
    Label: 10 px
28. 28.True or false: how users feel after is about UI (the look). (a) False (b) True
29. 29.True or false: a final design uses the final pictures. (a) False (b) True
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Results
    Design B: Home → Offers → Menu → Pens → Results
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 56 px tall
    Help button: 52 px tall
    Start button: 48 px tall
    Cancel button: 28 px tall (a) Save (b) Start (c) Help (d) Cancel
32. 32.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
33. 33.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ filter buttons ]
    [ top bar ]
    [ big picture ]
    [ list of items ]
    [ Add button ] (a) top bar (b) big picture (c) filter buttons (d) list of items
34. 34.🔢 In a food-order flow, which comes first: “track the order” or “pay for the order”? (a) pay for the order (b) track the order
35. 35.🔀 Why plan the user flow before building? (a) to skip testing (b) to hide the buttons (c) to add more taps (d) so each step is clear
36. 36.🔢 In a sign-up flow, which comes first: “open the app” or “see the home screen”? (a) see the home screen (b) open the app
37. 37.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
38. 38.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ top bar ]
    [ menu icon ]
    [ list of items ] (a) top bar (b) list of items (c) menu icon (d) Add button
39. 39.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
40. 40.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ big picture ]
    [ Add button ]
    [ list of items ]
    [ menu icon ]
    [ tab bar ] (a) Add button (b) tab bar (c) filter buttons (d) big picture

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