App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 73 · 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 is a wireframe? (a) a type of password (b) a simple screen sketch (c) a charging cable (d) the finished app
2. 2.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
3. 3.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
4. 4.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Search → Cart
   Design B: Home → Pens → Shop → Menu (a) Design B (b) Design A
5. 5.🔢 In a quiz-app flow, which comes LAST? (a) pick an answer (b) see if it is right (c) see the final score (d) tap “Start quiz”
6. 6.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) good UI but poor UX (c) perfect UX (d) good UX but poor UI
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Shop → Search
   Design B: Home → Address → Confirm → Menu
8. 8.🧭 What does the back button usually do? (a) opens settings (b) goes to the last screen (c) closes all apps (d) deletes the page
9. 9.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Help button: 32 px tall
   Save button: 72 px tall
   Send button: 64 px tall
   Back button: 56 px tall (a) Send (b) Back (c) Save (d) Help
10. 10.True or false: the button colours is about UI (the look). (a) False (b) True
11. 11.💾 What is a variable? (a) a picture (b) a type of screen (c) a phone setting (d) a named box for a value
12. 12.Which of these is true of a wireframe? (a) has no real colours (b) uses the final pictures (c) has the real colours (d) looks like the real app
13. 13.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) on the phone (b) in the cloud
14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Help page”
    3. tap Back
    4. open “Score card”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Video”
    3. tap Back
    4. tap the Home tab
    5. tap the Profile tab
    Which screen are you on now? (a) Video (b) Home (c) Search (d) Profile
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 20 px
    Footer: 21 px
    Menu: 13 px
    Title: 15 px
17. 17.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Confirm → Cart → Address
    Design B: Home → Pay → Menu → Search (a) Design B (b) Design A
18. 18.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 button colours
19. 19.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
20. 20.🔢 In a sign-up flow, which comes first: “open the app” or “see the home screen”? (a) open the app (b) see the home screen
21. 21.🔢 In a food-order flow, which comes first: “check the cart” or “pay for the order”? (a) pay for the order (b) check the cart
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Body text: 24 px
    Footer: 22 px
23. 23.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) on the phone (b) in the cloud
24. 24.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
25. 25.💾 pop() takes off the last item. What does this code show?
    let songs = ["Stars", "Kites", "Rain", "Monsoon"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Kites (b) Rain (c) Monsoon (d) Stars
26. 26.True or false: the button colours is about UX (the experience). (a) True (b) False
27. 27.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) captions on videos
28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Friend list”
    3. open “Map”
    4. tap the Home tab
    5. open “Map”
    Which screen are you on now? (a) Search (b) Map (c) Friend list (d) Home
29. 29.Which of these is true of a wireframe? (a) uses the final pictures (b) shows the real fonts (c) uses plain grey boxes (d) has the real colours
30. 30.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
31. 31.🔢 In a photo-post flow, which comes LAST? (a) write a caption (b) post the photo (c) open the camera screen (d) add a filter
32. 32.True or false: a clear word like Save is good button design. (a) True (b) False
33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Score card”
    3. tap the Chat tab
    4. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
34. 34.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 56 px tall
    Back button: 60 px tall
    Save button: 28 px tall
    Cancel button: 60 px tall (a) Back (b) Next (c) Cancel (d) Save
36. 36.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) fast-flashing lights (d) tiny tap areas
37. 37.🔢 In a photo-post flow, which comes first: “take the photo” or “post the photo”? (a) take the photo (b) post the photo
38. 38.💾 Which works with no internet at all? (a) a cloud backup (b) a cloud leaderboard (c) data saved on the phone (d) a shared chat
39. 39.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
40. 40.Which of these is true of a tab bar? (a) undoes one move (b) opens a list of pages (c) switches main sections (d) hides extra links

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