App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 257 · 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 of these helps everyone use the app? (a) icons with no labels (b) text that can grow (c) colour as the only clue (d) tiny tap areas
2. 2.🔢 In a photo-post flow, which comes first: “post the photo” or “open the camera screen”? (a) open the camera screen (b) post the photo
3. 3.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
4. 4.🖼️ In this wireframe (top to bottom), what is right above the search box?
   [ top bar ]
   [ big picture ]
   [ search box ]
   [ Add button ]
   [ list of items ]
   [ filter buttons ] (a) top bar (b) big picture (c) Add button (d) list of items
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Pay → Confirm → Offers → Search
   Design B: Home → Shop → Menu → Pens
6. 6.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Help button: 36 px tall
   Done button: 40 px tall
   Next button: 32 px tall
   Cancel button: 36 px tall
7. 7.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) colour as the only clue (d) fast-flashing lights
8. 8.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it runs the app (c) it adds colours (d) it saves data
9. 9.💾 Which can hold many values in order? (a) a button (b) a switch (c) a single number (d) a list
10. 10.🔢 In a photo-post flow, which comes LAST? (a) write a caption (b) open the camera screen (c) post the photo (d) add a filter
11. 11.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ filter buttons ]
    [ menu icon ]
    [ list of items ]
    [ title text ]
    [ big picture ]
    [ Add button ] (a) menu icon (b) big picture (c) filter buttons (d) title text
12. 12.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) pick an answer (b) see the final score (c) read a question (d) see if it is right
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Confirm → Size → Item
    Design B: Home → Results → Offers → Menu → Confirm → Pay → Item (a) Design B (b) Design A
14. 14.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
15. 15.💾 Where should the app save your last game level: on the phone or in the cloud? (a) in the cloud (b) on the phone
16. 16.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 56 px tall
    Start button: 52 px tall
    Cancel button: 32 px tall (a) Help (b) Start (c) Cancel
17. 17.Which of these is about UX (the experience)? (a) the icon shapes (b) the button colours (c) how fast a task is done (d) the theme colours
18. 18.Which of these is true of a wireframe? (a) shows the real fonts (b) shows where things go (c) has the real colours (d) looks like the real app
19. 19.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Music", "Sports"];
    show(notes[0]); (a) Sports (b) Music (c) Maths
20. 20.True or false: the screen layout is about UI (the look). (a) True (b) False
21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Edit photo”
    3. open “Edit photo”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
22. 22.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
23. 23.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
24. 24.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) colour as the only clue (d) text that can grow
25. 25.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Footer: 18 px
    Hint: 13 px
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Video”
    4. open “Score card”
    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). How many taps does Design A need?
    Design A: Home → Size → Pay → Search
    Design B: Home → Shop → Pens → Address → Offers → Size
29. 29.🔘 Our rule: buttons are at least 48 px tall. The Send button is 20 px tall. How many px taller must it be?
30. 30.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Confirm → Address → Pens → Size → Offers
    Design B: Home → Pay → Search → Shop
32. 32.🧭 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
33. 33.True or false: a draft you are typing fits saving on the phone. (a) True (b) False
34. 34.True or false: the screen layout is about UX (the experience). (a) False (b) True
35. 35.True or false: how users feel after is about UX (the experience). (a) True (b) False
36. 36.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
37. 37.💾 What number does this code show?
    let coins = 3;
    coins = coins - 3;
    coins = coins + 5;
    show(coins);
38. 38.🔀 What is a user flow? (a) a charging cable (b) a type of font (c) a colour theme (d) the path through screens
39. 39.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
40. 40.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Offers → Item
    Design B: Home → Item → Menu (a) Design B (b) Design A

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