App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 409 · 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.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Help button: 48 px tall
   Done button: 36 px tall
   Next button: 52 px tall
   Save button: 52 px tall (a) Save (b) Done (c) Help (d) Next
2. 2.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
3. 3.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Menu → Shop → Address
   Design B: Home → Search → Pens (a) Design B (b) Design A
4. 4.Which of these is true of a wireframe? (a) shows the real fonts (b) looks like the real app (c) is a quick sketch (d) uses the final pictures
5. 5.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) a picture goes here (c) a closed app (d) delete this
6. 6.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) make a password (b) tap “Sign up” (c) open the app (d) see the home screen
7. 7.💾 What does this code show? (Positions start at 0.)
   let notes = ["Art", "Hindi", "Music"];
   show(notes[2]); (a) Art (b) Music (c) Hindi
8. 8.🔍 Which is the odd one out? (a) the screen layout (b) the button colours (c) the theme colours (d) how fast a task is done
9. 9.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
10. 10.True or false: chat messages to friends fits saving on the phone. (a) False (b) True
11. 11.💾 What does this code show? (Positions start at 0.)
    let notes = ["Science", "Sports", "Maths"];
    show(notes[1]); (a) Sports (b) Maths (c) Science
12. 12.🧭 What does the back button usually do? (a) closes all apps (b) deletes the page (c) goes to the last screen (d) opens settings
13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Chat tab
    3. open “Video”
    4. tap Back
    5. open “Help page”
    Which screen are you on now? (a) Score card (b) Video (c) Help page (d) Feed
14. 14.Which colour pair is hard to read? (a) white on black (b) white on dark green (c) yellow on white (d) black on yellow
15. 15.True or false: how many taps it takes is about UX (the experience). (a) False (b) True
16. 16.Which of these is true of a final design? (a) uses the final pictures (b) is a quick sketch (c) uses plain grey boxes (d) shows where things go
17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap the Home tab
    3. open “Map”
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Score card”
    3. open “Video”
    Which screen are you on now? (a) Help page (b) Home (c) Score card (d) Video
19. 19.🔍 Which is the odd one out? (a) how many taps it takes (b) how easy sign-up is (c) the theme colours (d) how users feel after
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Menu: 24 px
    Label: 23 px
    Title: 23 px
    Body text: 28 px (a) Hint (b) Menu (c) Label (d) Title
21. 21.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Size → Cart
    Design B: Home → Item → Shop (a) Design A (b) Design B
22. 22.💾 What number does this code show?
    let score = 4;
    score = score - 2;
    score = score + 1;
    show(score);
23. 23.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Search → Confirm → Menu → Pay → Offers
    Design B: Home → Menu → Shop (a) Design B (b) Design A
24. 24.🎨 Is this about UI or UX: the icon shapes? (a) UX (b) UI
25. 25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 72 px tall
    Next button: 28 px tall
    Send button: 68 px tall
    Start button: 68 px tall (a) Save (b) Start (c) Next (d) Send
26. 26.🔘 Our rule: buttons are at least 48 px tall. The Save button is 24 px tall. How many px taller must it be?
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Badges”
    3. open “Friend list”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
28. 28.True or false: the icon shapes is about UX (the experience). (a) False (b) True
29. 29.True or false: a wireframe has the real colours. (a) False (b) True
30. 30.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
31. 31.🌗 Is yellow on white easy or hard to read on a button? (a) hard to read (b) easy to read
32. 32.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
33. 33.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 64 px tall
    Back button: 48 px tall
    Send button: 44 px tall (a) Back (b) Send (c) Cancel
34. 34.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
35. 35.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Address → Offers → Cart
    Design B: Home → Search → Shop
37. 37.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ list of items ]
    [ Save button ]
    [ big picture ]
    [ Add button ] (a) big picture (b) Save button (c) Add button
38. 38.🔍 Which is the odd one out? (a) how many taps it takes (b) the font size (c) how fast a task is done (d) how easy sign-up is
39. 39.True or false: photos on two devices fits saving on the phone. (a) False (b) True
40. 40.🎨 Who should you test the UX with? (a) nobody (b) only yourself (c) real users (d) the app icon

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