App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 779 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 24 px
   Body text: 26 px
   Label: 9 px (a) Body text (b) Label (c) Title
2. 2.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
3. 3.True or false: the sound on/off setting fits saving on the phone. (a) True (b) False
4. 4.Which of these is about UI (the look)? (a) how many taps it takes (b) how fast a task is done (c) the button colours (d) how easy sign-up is
5. 5.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a tab bar (c) a menu button
6. 6.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
7. 7.True or false: grey text on grey is poor button design. (a) True (b) False
8. 8.True or false: notes to read offline fits saving on the phone. (a) True (b) False
9. 9.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) see if it is right (c) pick an answer (d) see the final score
10. 10.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
11. 11.💾 pop() takes off the last item. What does this code show?
    let songs = ["Ocean", "Sunrise", "Kites"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Sunrise (b) Kites (c) Ocean
12. 12.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Save button ]
    [ big picture ]
    [ menu icon ]
    [ search box ]
    [ top bar ] (a) Save button (b) search box (c) menu icon (d) top bar
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Size → Address → Pay → Menu → Cart
    Design B: Home → Shop → Pay → Pens → Results (a) Design A (b) Design B
14. 14.🖼️ In this wireframe (top to bottom), what is right below the Add button?
    [ filter buttons ]
    [ Add button ]
    [ big picture ]
    [ list of items ]
    [ Save button ]
    [ search box ] (a) big picture (b) filter buttons (c) list of items (d) Save button
15. 15.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
16. 16.🔢 In a food-order flow, which comes first: “add it to the cart” or “open the menu”? (a) open the menu (b) add it to the cart
17. 17.🔢 In a sign-up flow, what comes right after “open the app”? (a) make a password (b) see the home screen (c) type name and email (d) tap “Sign up”
18. 18.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
19. 19.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
20. 20.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
21. 21.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) captions on videos
22. 22.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Offers → Confirm → Address → Shop → Pens
    Design B: Home → Menu → Pens → Pay
23. 23.🧭 What does the back button usually do? (a) deletes the page (b) opens settings (c) goes to the last screen (d) closes all apps
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Video”
    4. open “Map”
    Which screen are you on now? (a) Edit photo (b) Home (c) Map (d) Video
25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Video”
    3. open “Badges”
    4. open “Badges”
    Which screen are you on now? (a) Chat (b) Video (c) Feed (d) Badges
26. 26.🧭 Which part of navigation undoes one move? (a) the back button (b) a tab bar (c) a menu button
27. 27.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
28. 28.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
    [ top bar ]
    [ title text ]
    [ Add button ]
    [ tab bar ]
    [ menu icon ] (a) title text (b) top bar (c) menu icon (d) Add button
29. 29.🔍 Which is the odd one out? (a) the theme colours (b) the icon shapes (c) the button colours (d) how easy sign-up is
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Confirm → Cart
    Design B: Home → Pay → Menu → Offers → Search
31. 31.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Cart → Confirm → Address → Pens → Search
    Design B: Home → Address → Menu → Offers → Confirm → Item (a) Design B (b) Design A
32. 32.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) colour as the only clue (d) text that can grow
33. 33.🔘 Our rule: buttons are at least 48 px tall. The Help button is 40 px tall. How many px taller must it be?
34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Score card”
    3. tap the Quiz tab
    4. tap the Me tab
    5. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
35. 35.💾 What does this code show? (Positions start at 0.)
    let notes = ["Music", "Hindi", "Sports"];
    show(notes[0]); (a) Music (b) Sports (c) Hindi
36. 36.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) a phone case (c) a 3D printer (d) pencil and paper
37. 37.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Video”
    3. open “Friend list”
    4. tap the Home tab
    5. open “Score card”
    Which screen are you on now? (a) Friend list (b) Video (c) Home (d) Score card
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Body text: 19 px
    Footer: 22 px (a) Title (b) Body text (c) Footer
39. 39.🔀 What is a user flow? (a) a colour theme (b) a charging cable (c) the path through screens (d) a type of font
40. 40.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) fast-flashing lights (d) strong colour contrast

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