App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 20 · 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.🔍 Which is the odd one out? (a) how fast a task is done (b) whether users get lost (c) how easy sign-up is (d) the theme colours
2. 2.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Save button: 44 px tall
   Back button: 60 px tall
   Start button: 52 px tall
   Help button: 72 px tall (a) Save (b) Help (c) Back (d) Start
3. 3.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
4. 4.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Friend list”
   2. open “Map”
   3. open “Video”
   4. tap the Lessons tab
   5. tap the Lessons tab
   Which screen are you on now? (a) Lessons (b) Friend list (c) Video (d) Map
5. 5.Which of these fits saving on the phone? (a) chat messages to friends (b) a class leaderboard (c) your last game level (d) a shared to-do list
6. 6.🖼️ How many parts (boxes) does this wireframe have?
   [ top bar ]
   [ title text ]
   [ Save button ]
   [ list of items ]
   [ tab bar ]
   [ big picture ]
7. 7.True or false: whether users get lost is about UX (the experience). (a) False (b) True
8. 8.Which of these is true of a tab bar? (a) undoes one move (b) opens a list of pages (c) goes to the last screen (d) switches main sections
9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Help page”
   2. open “Help page”
   3. tap Back
   4. open “Score card”
   Which screen are you on now? (a) Quiz (b) Score card (c) Help page (d) Lessons
10. 10.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) tiny tap areas (d) captions on videos
11. 11.Which of these is true of a final design? (a) is a quick sketch (b) looks like the real app (c) uses plain grey boxes (d) has no real colours
12. 12.Which of these is about UX (the experience)? (a) the font size (b) how easy sign-up is (c) the button colours (d) the icon shapes
13. 13.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it runs the app (c) it adds colours (d) it saves data
14. 14.True or false: the sound on/off setting fits saving on the phone. (a) True (b) False
15. 15.🖼️ How many parts (boxes) does this wireframe have?
    [ menu icon ]
    [ tab bar ]
    [ big picture ]
    [ top bar ]
16. 16.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) sudden loud sounds
17. 17.True or false: buttons almost touching is good button design. (a) False (b) True
18. 18.🔢 In a photo-post flow, which comes first: “post the photo” or “open the camera screen”? (a) post the photo (b) open the camera screen
19. 19.🔢 In a food-order flow, which comes first: “add it to the cart” or “check the cart”? (a) check the cart (b) add it to the cart
20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. open “Score card”
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Edit photo”
    3. open “Edit photo”
    4. tap the Home tab
    Which screen are you on now? (a) Map (b) Edit photo (c) Search (d) Home
22. 22.🔍 Which is the odd one out? (a) the theme colours (b) how easy sign-up is (c) the button colours (d) the font size
23. 23.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
24. 24.🔢 In a photo-post flow, which comes first: “take the photo” or “add a filter”? (a) take the photo (b) add a filter
25. 25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 48 px tall
    Send button: 72 px tall
    Save button: 48 px tall
    Back button: 44 px tall (a) Next (b) Save (c) Send (d) Back
26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Edit photo”
    3. tap Back
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
27. 27.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Address → Offers
    Design B: Home → Confirm → Menu → Shop → Size → Search → Cart (a) Design B (b) Design A
28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Edit photo”
    3. tap the Quiz tab
    4. open “Badges”
    Which screen are you on now? (a) Edit photo (b) Lessons (c) Badges (d) Quiz
29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
30. 30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Settings tab
    3. open “Map”
    4. open “Edit photo”
    5. tap the Chat tab
    Which screen are you on now? (a) Chat (b) Feed (c) Map (d) Edit photo
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Label: 28 px
    Title: 20 px
    Menu: 14 px (a) Title (b) Caption (c) Label (d) Menu
32. 32.🖼️ In this wireframe (top to bottom), what is right below the big picture?
    [ tab bar ]
    [ filter buttons ]
    [ big picture ]
    [ Save button ]
    [ search box ]
    [ title text ] (a) tab bar (b) Save button (c) search box (d) filter buttons
33. 33.🔘 Our rule: buttons are at least 48 px tall. The Done button is 20 px tall. How many px taller must it be?
34. 34.🔢 In a photo-post flow, what comes right after “add a filter”? (a) post the photo (b) open the camera screen (c) take the photo (d) write a caption
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
36. 36.💾 What number does this code show?
    let points = 7;
    points = points - 7;
    points = points + 3;
    show(points);
37. 37.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
38. 38.True or false: a big, easy tap area is good button design. (a) False (b) True
39. 39.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
40. 40.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students