App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 148 · 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.🔀 Why plan the user flow before building? (a) to skip testing (b) so each step is clear (c) to hide the buttons (d) to add more taps
2. 2.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Help button: 36 px tall
   Back button: 72 px tall
   Start button: 48 px tall
   Next button: 60 px tall (a) Help (b) Back (c) Next (d) Start
3. 3.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
4. 4.Which of these is about UI (the look)? (a) the screen layout (b) how easy sign-up is (c) whether users get lost (d) how fast a task is done
5. 5.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) tap “Start quiz” (b) see the final score (c) pick an answer (d) read a question
6. 6.🔢 In a food-order flow, what comes right after “pick a dish”? (a) pay for the order (b) track the order (c) check the cart (d) add it to the cart
7. 7.True or false: a final design uses plain grey boxes. (a) True (b) False
8. 8.🔢 In a quiz-app flow, which comes LAST? (a) read a question (b) see the final score (c) tap “Start quiz” (d) see if it is right
9. 9.🔢 In a sign-up flow, which comes first: “type name and email” or “tap “Sign up””? (a) tap “Sign up” (b) type name and email
10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Feed tab
    3. open “Score card”
    4. tap Back
    Which screen are you on now? (a) Help page (b) Score card (c) Feed (d) Chat
11. 11.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ title text ]
    [ menu icon ]
    [ Save button ]
12. 12.Which of these fits saving on the phone? (a) the sound on/off setting (b) chat messages to friends (c) a class leaderboard (d) a shared to-do list
13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Feed tab
    3. open “Score card”
    4. tap the Chat tab
    5. tap the Feed tab
    Which screen are you on now? (a) Chat (b) Settings (c) Score card (d) Feed
14. 14.🎨 UI stands for user ___. (a) internet (b) interface (c) input (d) idea
15. 15.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
16. 16.🔢 In a quiz-app flow, which comes first: “pick an answer” or “read a question”? (a) pick an answer (b) read a question
17. 17.✏️ Why draw a wireframe before coding? (a) it saves data (b) it adds colours (c) changes are quick (d) it runs the app
18. 18.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
19. 19.🔢 In a photo-post flow, which comes first: “open the camera screen” or “take the photo”? (a) take the photo (b) open the camera screen
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Search → Item → Pens
    Design B: Home → Item → Search → Shop → Cart → Results
21. 21.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
22. 22.Which of these fits saving on the phone? (a) a shared to-do list (b) your last game level (c) a class leaderboard (d) chat messages to friends
23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Edit photo”
    3. open “Edit photo”
    Which screen are you on now? (a) Edit photo (b) Lessons (c) Map (d) Quiz
24. 24.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) fast typists (d) colour-blind users
25. 25.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) plays music (d) makes text tiny
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. tap the Feed tab
    4. open “Badges”
    Which screen are you on now? (a) Feed (b) Badges (c) Edit photo (d) Chat
27. 27.💾 Which works with no internet at all? (a) a cloud backup (b) a shared chat (c) a cloud leaderboard (d) data saved on the phone
28. 28.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
29. 29.✏️ What is a wireframe? (a) the finished app (b) a simple screen sketch (c) a type of password (d) a charging cable
30. 30.💾 What number does this code show?
    let notes = ["Science", "Maths", "Sports"];
    notes.push("Art");
    show(notes.length);
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 72 px tall
    Help button: 56 px tall
    Next button: 64 px tall
    Save button: 24 px tall (a) Next (b) Save (c) Help (d) Back
32. 32.True or false: space between buttons is poor button design. (a) True (b) False
33. 33.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) type name and email (b) see the home screen (c) tap “Sign up” (d) open the app
34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap the Search tab
    3. tap the Search tab
    4. open “Friend list”
    5. open “Video”
    Which screen are you on now? (a) Map (b) Friend list (c) Video (d) Home
35. 35.True or false: a clear word like Save is good button design. (a) True (b) False
36. 36.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) delete this (c) a closed app (d) an error
37. 37.🔍 Which is the odd one out? (a) the font size (b) the icon shapes (c) the screen layout (d) how many taps it takes
38. 38.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
39. 39.💾 Which can hold many values in order? (a) a list (b) a single number (c) a switch (d) a button
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Label: 22 px
    Menu: 18 px

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