App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 802 · 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) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
2. 2.Which colour pair is hard to read? (a) dark blue on white (b) pale pink on white (c) white on dark green (d) white on black
3. 3.🔢 In a food-order flow, which comes FIRST? (a) pay for the order (b) track the order (c) check the cart (d) open the menu
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 19 px
   Menu: 17 px
   Label: 24 px
5. 5.Which of these is true of a final design? (a) is a quick sketch (b) uses the final pictures (c) has no real colours (d) uses plain grey boxes
6. 6.True or false: how easy sign-up is is about UI (the look). (a) True (b) False
7. 7.Which of these fits saving in the cloud? (a) photos on two devices (b) the sound on/off setting (c) a draft you are typing (d) your last game level
8. 8.🔢 In a photo-post flow, which comes first: “post the photo” or “take the photo”? (a) post the photo (b) take the photo
9. 9.Which of these is true of a menu button? (a) switches main sections (b) hides extra links (c) undoes one move (d) sits at the bottom
10. 10.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
11. 11.True or false: a tiny 20 px button is poor button design. (a) False (b) True
12. 12.🔘 Our rule: buttons are at least 48 px tall. The Send button is 44 px tall. How many px taller must it be?
13. 13.True or false: a final design uses plain grey boxes. (a) False (b) True
14. 14.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
15. 15.💾 What number does this code show?
    let songs = ["Ocean", "Monsoon", "Rain", "Stars"];
    songs.push("Sunrise");
    show(songs.length);
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
17. 17.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see the final score (b) pick an answer (c) read a question (d) see if it is right
18. 18.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
19. 19.🔍 Which is the odd one out? (a) how easy sign-up is (b) the font size (c) whether users get lost (d) how many taps it takes
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Help page”
    3. tap Back
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
21. 21.Which of these is about UX (the experience)? (a) the theme colours (b) how easy sign-up is (c) the screen layout (d) the font size
22. 22.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) home screen (c) dead end (d) tab bar
23. 23.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) write a caption (b) post the photo (c) take the photo (d) add a filter
24. 24.🔢 In a food-order flow, which comes first: “add it to the cart” or “track the order”? (a) add it to the cart (b) track the order
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Hint: 9 px
    Label: 18 px
    Caption: 24 px (a) Hint (b) Title (c) Label (d) Caption
26. 26.Which of these is true of a wireframe? (a) uses the final pictures (b) has the real colours (c) shows the real fonts (d) uses plain grey boxes
27. 27.💾 What number does this code show?
    let notes = ["Science", "Art", "Music"];
    notes.push("Maths");
    show(notes.length);
28. 28.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
29. 29.Which of these is true of the back button? (a) shows 3 to 5 icons (b) goes to the last screen (c) opens a list of pages (d) hides extra links
30. 30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Settings tab
    3. open “Score card”
    4. open “Video”
    Which screen are you on now? (a) Video (b) Score card (c) Feed (d) Chat
31. 31.Which of these is true of a tab bar? (a) opens a list of pages (b) undoes one move (c) goes to the last screen (d) shows 3 to 5 icons
32. 32.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Item → Size → Search → Pay
    Design B: Home → Menu → Search → Confirm → Shop
33. 33.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
34. 34.✏️ What is a wireframe? (a) the finished app (b) a type of password (c) a simple screen sketch (d) a charging cable
35. 35.🔢 In a photo-post flow, what comes right after “add a filter”? (a) take the photo (b) open the camera screen (c) write a caption (d) post the photo
36. 36.🎨 Who should you test the UX with? (a) only yourself (b) real users (c) the app icon (d) nobody
37. 37.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
38. 38.🧭 Which part of navigation switches main sections? (a) the back button (b) a menu button (c) a tab bar
39. 39.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
40. 40.🔢 In a photo-post flow, which comes LAST? (a) take the photo (b) post the photo (c) write a caption (d) add a filter

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