App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 345 · 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.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
2. 2.💾 What number does this code show?
   let coins = 8;
   coins = coins - 3;
   coins = coins + 4;
   show(coins);
3. 3.🔢 In a food-order flow, which comes first: “open the menu” or “pick a dish”? (a) pick a dish (b) open the menu
4. 4.🖼️ How many parts (boxes) does this wireframe have?
   [ search box ]
   [ top bar ]
   [ title text ]
   [ list of items ]
   [ menu icon ]
   [ filter buttons ]
5. 5.🧭 Which part of navigation switches main sections? (a) a tab bar (b) a menu button (c) the back button
6. 6.🔢 In a sign-up flow, which comes LAST? (a) see the home screen (b) type name and email (c) enter the code sent (d) tap “Sign up”
7. 7.🎨 UI stands for user ___. (a) idea (b) interface (c) internet (d) input
8. 8.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) strong colour contrast
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Pens → Menu
   Design B: Home → Menu → Size → Search
10. 10.True or false: strong colour contrast is poor button design. (a) False (b) True
11. 11.True or false: a final design is a quick sketch. (a) True (b) False
12. 12.🔀 What is a user flow? (a) a type of font (b) the path through screens (c) a charging cable (d) a colour theme
13. 13.True or false: a clear word like Save is good button design. (a) True (b) False
14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Offers → Cart → Search → Confirm → Results
    Design B: Home → Shop → Cart → Size
15. 15.Which of these is true of a wireframe? (a) has the real colours (b) uses plain grey boxes (c) shows the real fonts (d) uses the final pictures
16. 16.True or false: a wireframe has the real colours. (a) True (b) False
17. 17.🧭 What does the back button usually do? (a) deletes the page (b) opens settings (c) closes all apps (d) goes to the last screen
18. 18.🔢 In a photo-post flow, which comes FIRST? (a) add a filter (b) write a caption (c) open the camera screen (d) post the photo
19. 19.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Score card”
    4. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
21. 21.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 40 px tall
    Cancel button: 52 px tall
    Save button: 52 px tall
    Back button: 56 px tall (a) Cancel (b) Send (c) Save (d) Back
22. 22.Which of these is about UI (the look)? (a) how fast a task is done (b) whether users get lost (c) the button colours (d) how easy sign-up is
23. 23.Which of these is true of a menu button? (a) opens a list of pages (b) sits at the bottom (c) switches main sections (d) undoes one move
24. 24.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 32 px tall
    Help button: 52 px tall
    Cancel button: 60 px tall (a) Start (b) Cancel (c) Help
25. 25.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
26. 26.🔢 In a quiz-app flow, which comes LAST? (a) tap “Start quiz” (b) read a question (c) see the final score (d) see if it is right
27. 27.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
28. 28.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
29. 29.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
30. 30.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ title text ]
    [ top bar ]
    [ tab bar ]
    [ list of items ] (a) title text (b) tab bar (c) list of items (d) big picture
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pay → Menu
    Design B: Home → Pay → Shop → Address
32. 32.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 32 px tall
    Back button: 40 px tall
    Done button: 36 px tall
    Next button: 40 px tall
33. 33.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 28 px tall
    Back button: 60 px tall
    Next button: 68 px tall
    Save button: 52 px tall (a) Next (b) Save (c) Help (d) Back
34. 34.💾 Which works with no internet at all? (a) a cloud backup (b) a shared chat (c) data saved on the phone (d) a cloud leaderboard
35. 35.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) tiny tap areas (d) labels on every icon
36. 36.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
37. 37.🔢 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
38. 38.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap the Me tab
    3. open “Help page”
    4. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
40. 40.True or false: a wireframe uses the final pictures. (a) True (b) False

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