App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 795 · 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) internet (b) idea (c) interface (d) input
2. 2.🔘 Our rule: buttons are at least 48 px tall. The Send button is 24 px tall. How many px taller must it be?
3. 3.💾 pop() takes off the last item. What does this code show?
   let notes = ["Music", "Maths", "Science"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Science (b) Music (c) Maths
4. 4.✏️ A box with a cross in a wireframe usually means ___. (a) delete this (b) a closed app (c) an error (d) a picture goes here
5. 5.Which of these is about UI (the look)? (a) the button colours (b) whether users get lost (c) how fast a task is done (d) how many taps it takes
6. 6.🔢 In a quiz-app flow, which comes first: “read a question” or “see the final score”? (a) read a question (b) see the final score
7. 7.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.🔢 In a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) write a caption (b) add a filter
9. 9.✏️ What is a wireframe? (a) a charging cable (b) a type of password (c) the finished app (d) a simple screen sketch
10. 10.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
11. 11.💾 What does this code show? (Positions start at 0.)
    let songs = ["Kites", "Monsoon", "Rain", "Stars", "Ocean"];
    show(songs[4]); (a) Rain (b) Ocean (c) Monsoon (d) Kites
12. 12.🔢 In a food-order flow, which comes first: “track the order” or “open the menu”? (a) open the menu (b) track the order
13. 13.True or false: the font size is about UI (the look). (a) False (b) True
14. 14.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
15. 15.Which of these is about UX (the experience)? (a) the theme colours (b) the button colours (c) the icon shapes (d) how fast a task is done
16. 16.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) sits at the bottom
17. 17.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) see the final score (c) pick an answer (d) see if it is right
18. 18.Which of these is true of a tab bar? (a) goes to the last screen (b) hides extra links (c) opens a list of pages (d) switches main sections
19. 19.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) inside a button (c) nowhere (d) at the bottom
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Badges”
    3. tap Back
    4. tap the Profile tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Shop → Confirm → Menu → Pay → Results → Address
    Design B: Home → Confirm → Cart → Address
22. 22.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. tap the Feed tab
    4. open “Video”
    5. tap Back
    Which screen are you on now? (a) Chat (b) Video (c) Map (d) Feed
24. 24.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
25. 25.🔢 In a sign-up flow, which comes first: “open the app” or “tap “Sign up””? (a) open the app (b) tap “Sign up”
26. 26.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
27. 27.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap Back
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
28. 28.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Pay → Shop → Size → Offers
    Design B: Home → Pens → Size (a) Design B (b) Design A
29. 29.🔍 Which is the odd one out? (a) how many taps it takes (b) how users feel after (c) the button colours (d) how fast a task is done
30. 30.True or false: a wireframe uses the final pictures. (a) False (b) True
31. 31.🔢 In a quiz-app flow, which comes first: “read a question” or “tap “Start quiz””? (a) read a question (b) tap “Start quiz”
32. 32.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) strong colour contrast (d) fast-flashing lights
33. 33.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a microphone (c) a phone case (d) a 3D printer
34. 34.True or false: whether users get lost is about UI (the look). (a) False (b) True
35. 35.Which of these is about UI (the look)? (a) how many taps it takes (b) how easy sign-up is (c) the font size (d) how users feel after
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Hint: 16 px
    Menu: 14 px
    Title: 18 px (a) Label (b) Menu (c) Title (d) Hint
37. 37.🎨 UX stands for user ___. (a) experience (b) extra (c) express (d) example
38. 38.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. tap the Me tab
    Which screen are you on now? (a) Quiz (b) Lessons (c) Me (d) Video
39. 39.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 24 px tall
    Back button: 72 px tall
    Help button: 52 px tall
    Cancel button: 52 px tall (a) Back (b) Start (c) Cancel (d) Help
40. 40.🔢 In a sign-up flow, which comes LAST? (a) see the home screen (b) make a password (c) enter the code sent (d) open the app

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