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App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 80 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Profile tab
    3. tap the Profile tab
    4. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
  2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Label: 10 px
    Body text: 13 px
  3. 3.🔢 In a sign-up flow, what comes right after “open the app”? (a) see the home screen (b) tap “Sign up” (c) type name and email (d) make a password
  4. 4.🔀 Why plan the user flow before building? (a) to add more taps (b) so each step is clear (c) to hide the buttons (d) to skip testing
  5. 5.🔢 In a food-order flow, which comes first: “pick a dish” or “open the menu”? (a) open the menu (b) pick a dish
  6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 36 px tall
    Cancel button: 64 px tall
    Next button: 52 px tall
    Done button: 60 px tall     (a) Done (b) Help (c) Next (d) Cancel
  7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  8. 8.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Search
    Design B: Home → Pens → Shop → Cart
  9. 9.🔢 In a food-order flow, what comes right after “check the cart”? (a) open the menu (b) add it to the cart (c) pick a dish (d) pay for the order
  10. 10.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 60 px tall
    Help button: 56 px tall
    Save button: 60 px tall
    Start button: 44 px tall     (a) Start (b) Help (c) Save (d) Cancel
  11. 11.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Size → Menu → Cart
    Design B: Home → Menu → Search → Cart     (a) Design A (b) Design B
  12. 12.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
  13. 13.Which of these is true of a menu button? (a) opens a list of pages (b) goes to the last screen (c) switches main sections (d) sits at the bottom
  14. 14.Which of these is about UI (the look)? (a) whether users get lost (b) how fast a task is done (c) the icon shapes (d) how easy sign-up is
  15. 15.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
  16. 16.Which of these is true of a final design? (a) has the real colours (b) uses plain grey boxes (c) has no real colours (d) is a quick sketch
  17. 17.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
  18. 18.Which of these fits saving in the cloud? (a) a draft you are typing (b) notes to read offline (c) your last game level (d) a shared to-do list
  19. 19.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ Save button ]
    [ search box ]
    [ menu icon ]
    [ Add button ]     (a) Add button (b) Save button (c) menu icon
  20. 20.💾 Saving data in the cloud lets you ___. (a) never need a password (b) skip the internet (c) shrink the app (d) use it on any device
  21. 21.🔢 In a sign-up flow, which comes first: “enter the code sent” or “tap “Sign up””? (a) enter the code sent (b) tap “Sign up”
  22. 22.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) strong colour contrast (d) labels on every icon
  23. 23.Which colour pair is hard to read? (a) black on yellow (b) black on pale grey (c) white on dark green (d) dark blue on black
  24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Score card”
    4. open “Match report”
    5. open “Edit photo”
    Which screen are you on now?     (a) Score card (b) Lessons (c) Match report (d) Edit photo
  25. 25.Which of these is about UI (the look)? (a) how fast a task is done (b) how easy sign-up is (c) the button colours (d) how many taps it takes
  26. 26.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ filter buttons ]
    [ tab bar ]
    [ Add button ]
    [ title text ]
    [ search box ]
    [ menu icon ]     (a) menu icon (b) tab bar (c) filter buttons (d) Add button
  27. 27.💾 What number does this code show?
    let songs = ["Monsoon", "Sunrise", "Stars", "Rain"];
    songs.push("Ocean");
    show(songs.length);
  28. 28.True or false: whether users get lost is about UI (the look). (a) False (b) True
  29. 29.🖼️ How many parts (boxes) does this wireframe have?
    [ tab bar ]
    [ menu icon ]
    [ list of items ]
    [ top bar ]
    [ big picture ]
  30. 30.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) a phone case (c) a 3D printer (d) pencil and paper
  31. 31.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) tap “Start quiz” (b) read a question (c) pick an answer (d) see the final score
  32. 32.🧭 What does the back button usually do? (a) goes to the last screen (b) deletes the page (c) closes all apps (d) opens settings
  33. 33.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ filter buttons ]
    [ list of items ]
    [ search box ]
    [ title text ]     (a) list of items (b) filter buttons (c) search box
  34. 34.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Cart
    Design B: Home → Shop → Size → Results → Offers → Search → Pay     (a) Design B (b) Design A
  35. 35.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) the phone settings (c) a random page (d) the last app used
  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 → Pens → Item → Results → Pay → Address
    Design B: Home → Item → Results → Pens → Offers → Address
  37. 37.🔀 What is a user flow? (a) a charging cable (b) a type of font (c) the path through screens (d) a colour theme
  38. 38.Which of these is true of a wireframe? (a) has the real colours (b) uses plain grey boxes (c) shows the real fonts (d) uses the final pictures
  39. 39.🔢 In a quiz-app flow, what comes right after “read a question”? (a) see if it is right (b) see the final score (c) tap “Start quiz” (d) pick an answer
  40. 40.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Address → Cart → Pay → Confirm → Search
    Design B: Home → Pay → Search → Size → Address     (a) Design A (b) Design B

Answer key

  1. 0
  2. 3
  3. tap “Sign up”
  4. so each step is clear
  5. open the menu
  6. Help
  7. 1
  8. 1
  9. pay for the order
  10. Start
  11. Design B
  12. hard to read
  13. opens a list of pages
  14. the icon shapes
  15. UX
  16. has the real colours
  17. False
  18. a shared to-do list
  19. menu icon
  20. use it on any device
  21. tap “Sign up”
  22. tiny tap areas
  23. dark blue on black
  24. Edit photo
  25. the button colours
  26. Add button
  27. 5
  28. False
  29. 5
  30. pencil and paper
  31. see the final score
  32. goes to the last screen
  33. search box
  34. Design A
  35. that tab’s main screen
  36. 1
  37. the path through screens
  38. uses plain grey boxes
  39. pick an answer
  40. Design B

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