App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 507 · 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.🎨 UI stands for user ___. (a) idea (b) interface (c) input (d) internet
2. 2.🧭 Which part of navigation switches main sections? (a) the back button (b) a menu button (c) a tab bar
3. 3.🎨 Is this about UI or UX: the screen layout? (a) UI (b) UX
4. 4.💾 In most code, the first item of a list is at position ___. (a) 2 (b) 0 (c) 10 (d) 1
5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Quiz tab
   2. open “Help page”
   3. tap Back
   4. open “Friend list”
   How many times must you tap Back to reach the main screen of this tab?
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 18 px
   Caption: 11 px
   Title: 16 px
   Body text: 11 px
7. 7.🖼️ How many parts (boxes) does this wireframe have?
   [ title text ]
   [ menu icon ]
   [ tab bar ]
   [ list of items ]
   [ Save button ]
   [ filter buttons ]
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Search tab
   2. open “Score card”
   3. open “Video”
   4. open “Help page”
   How many times must you tap Back to reach the main screen of this tab?
9. 9.True or false: the icon shapes is about UX (the experience). (a) False (b) True
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Caption: 18 px
    Label: 12 px
    Body text: 11 px
11. 11.Which of these is about UI (the look)? (a) how many taps it takes (b) whether users get lost (c) the theme colours (d) how fast a task is done
12. 12.👆 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 → Results → Item → Shop
13. 13.Which of these is true of a wireframe? (a) shows the real fonts (b) has no real colours (c) uses the final pictures (d) looks like the real app
14. 14.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
15. 15.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
16. 16.Which of these is true of a wireframe? (a) has the real colours (b) is a quick sketch (c) looks like the real app (d) shows the real fonts
17. 17.🔢 In a quiz-app flow, which comes FIRST? (a) read a question (b) see if it is right (c) pick an answer (d) tap “Start quiz”
18. 18.💾 What number does this code show?
    let songs = ["Kites", "Monsoon", "Stars", "Rain"];
    songs.push("Ocean");
    songs.push("Sunrise");
    show(songs.length);
19. 19.Which of these is true of a menu button? (a) sits at the bottom (b) opens a list of pages (c) shows 3 to 5 icons (d) undoes one move
20. 20.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) a random page (c) that tab’s main screen (d) the phone settings
21. 21.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) the back button (c) a tab bar
22. 22.Which of these fits saving on the phone? (a) photos on two devices (b) your last game level (c) a class leaderboard (d) chat messages to friends
23. 23.💾 What number does this code show?
    let songs = ["Monsoon", "Rain", "Kites"];
    songs.push("Sunrise");
    songs.push("Stars");
    show(songs.length);
24. 24.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
25. 25.🔍 Which is the odd one out? (a) whether users get lost (b) how fast a task is done (c) the icon shapes (d) how users feel after
26. 26.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Pens
    Design B: Home → Search → Address → Results → Offers (a) Design A (b) Design B
27. 27.Which of these fits saving in the cloud? (a) the sound on/off setting (b) your last game level (c) a class leaderboard (d) notes to read offline
28. 28.True or false: a wireframe has no real colours. (a) False (b) True
29. 29.💾 What number does this code show?
    let score = 7;
    score = score - 3;
    score = score + 5;
    show(score);
30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Profile tab
    3. tap the Profile tab
    4. open “Video”
    Which screen are you on now? (a) Home (b) Video (c) Search (d) Profile
31. 31.💾 What number does this code show?
    let coins = 4;
    coins = coins - 4;
    coins = coins + 5;
    show(coins);
32. 32.✏️ What is a wireframe? (a) the finished app (b) a charging cable (c) a simple screen sketch (d) a type of password
33. 33.🔢 In a food-order flow, what comes right after “check the cart”? (a) open the menu (b) pick a dish (c) track the order (d) pay for the order
34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Friend list”
    3. open “Video”
    4. tap the Settings tab
    Which screen are you on now? (a) Settings (b) Feed (c) Friend list (d) Video
35. 35.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) pick an answer (c) see the final score (d) see if it is right
36. 36.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
37. 37.🔢 In a quiz-app flow, which comes first: “read a question” or “tap “Start quiz””? (a) read a question (b) tap “Start quiz”
38. 38.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 36 px tall
    Cancel button: 36 px tall
    Save button: 32 px tall
    Next button: 48 px tall
39. 39.🔢 In a sign-up flow, which comes first: “make a password” or “open the app”? (a) make a password (b) open the app
40. 40.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 10 to 12 (c) 20 (d) 3 to 5

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