App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 517 · 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 of these fits saving on the phone? (a) the sound on/off setting (b) a shared to-do list (c) a class leaderboard (d) chat messages to friends
2. 2.🎨 Who should you test the UX with? (a) real users (b) nobody (c) only yourself (d) the app icon
3. 3.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
4. 4.💾 What number does this code show?
   let lives = 3;
   lives = lives - 2;
   lives = lives + 1;
   show(lives);
5. 5.Which of these is true of a tab bar? (a) hides extra links (b) sits at the bottom (c) opens a list of pages (d) undoes one move
6. 6.True or false: chat messages to friends fits saving on the phone. (a) True (b) False
7. 7.True or false: your last game level fits saving in the cloud. (a) False (b) True
8. 8.True or false: how fast a task is done is about UX (the experience). (a) True (b) False
9. 9.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) in the cloud (b) on the phone
10. 10.True or false: the theme colours is about UI (the look). (a) True (b) False
11. 11.Which colour pair is easy to read? (a) white on black (b) dark blue on black (c) yellow on white (d) pale pink on white
12. 12.🧭 Why should every screen show where you are? (a) to hide the menu (b) so users do not get lost (c) to look busy (d) to use more battery
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) big touch targets
14. 14.Which of these is true of a tab bar? (a) hides extra links (b) goes to the last screen (c) opens a list of pages (d) switches main sections
15. 15.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) in the middle (c) at the bottom (d) inside a button
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. tap the Search tab
    4. open “Video”
    Which screen are you on now? (a) Score card (b) Video (c) Home (d) Search
17. 17.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
18. 18.✏️ What is a wireframe? (a) the finished app (b) a charging cable (c) a type of password (d) a simple screen sketch
19. 19.True or false: a wireframe has the real colours. (a) True (b) False
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Body text: 24 px
    Hint: 24 px
    Footer: 13 px (a) Body text (b) Hint (c) Title (d) Footer
21. 21.🎨 UX stands for user ___. (a) example (b) extra (c) experience (d) express
22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Settings tab
    3. open “Friend list”
    4. tap Back
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
23. 23.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 32 px tall
    Back button: 40 px tall
    Done button: 48 px tall
24. 24.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
25. 25.Which of these is about UI (the look)? (a) how users feel after (b) how easy sign-up is (c) how many taps it takes (d) the button colours
26. 26.Which colour pair is easy to read? (a) dark blue on black (b) black on yellow (c) pale pink on white (d) red on green
27. 27.🔍 Which is the odd one out? (a) whether users get lost (b) how fast a task is done (c) how easy sign-up is (d) the font size
28. 28.Which of these fits saving on the phone? (a) a class leaderboard (b) notes to read offline (c) chat messages to friends (d) a shared to-do list
29. 29.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
30. 30.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) better UX (c) more colours (d) worse UX
31. 31.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Map”
    4. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
32. 32.💾 What is a variable? (a) a phone setting (b) a type of screen (c) a named box for a value (d) a picture
33. 33.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Search → Menu → Results → Address
    Design B: Home → Pens → Search (a) Design B (b) Design A
34. 34.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
35. 35.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) big touch targets (d) colour as the only clue
36. 36.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Feed tab
    3. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
38. 38.🔢 In a food-order flow, which comes LAST? (a) check the cart (b) track the order (c) pick a dish (d) add it to the cart
39. 39.🔍 Which is the odd one out? (a) how many taps it takes (b) whether users get lost (c) the button colours (d) how fast a task is done
40. 40.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True

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