App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 618 · 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.🔢 In a food-order flow, which comes first: “track the order” or “check the cart”? (a) check the cart (b) track the order
2. 2.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ top bar ]
   [ list of items ]
   [ tab bar ]
   [ title text ]
   [ big picture ] (a) big picture (b) top bar (c) list of items (d) tab bar
3. 3.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
4. 4.Which of these is true of a final design? (a) is a quick sketch (b) has no real colours (c) shows the real fonts (d) uses plain grey boxes
5. 5.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
6. 6.Which of these is true of a final design? (a) is a quick sketch (b) shows where things go (c) has no real colours (d) has the real colours
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Me tab
   2. tap the Lessons tab
   3. open “Score card”
   4. tap Back
   How many times must you tap Back to reach the main screen of this tab?
8. 8.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Done button: 32 px tall
   Send button: 32 px tall
   Save button: 44 px tall
9. 9.Which of these is true of a menu button? (a) hides extra links (b) undoes one move (c) shows 3 to 5 icons (d) goes to the last screen
10. 10.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
11. 11.True or false: a final design looks like the real app. (a) False (b) True
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Hint: 20 px
    Body text: 9 px
    Label: 22 px
    Menu: 19 px (a) Label (b) Body text (c) Hint (d) Caption
13. 13.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read
14. 14.🔀 Why plan the user flow before building? (a) to add more taps (b) so each step is clear (c) to skip testing (d) to hide the buttons
15. 15.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
16. 16.Which colour pair is easy to read? (a) white on black (b) pale pink on white (c) red on green (d) dark blue on black
17. 17.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) better UX (c) more colours (d) worse UX
18. 18.✏️ What is the easiest way to draw a first wireframe? (a) a phone case (b) a 3D printer (c) pencil and paper (d) a microphone
19. 19.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 32 px tall
    Send button: 32 px tall
    Next button: 36 px tall
20. 20.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Cart → Confirm → Menu → Pay
    Design B: Home → Results → Confirm → Item → Search → Pens → Offers (a) Design A (b) Design B
21. 21.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
22. 22.🔢 In a sign-up flow, which comes first: “open the app” or “tap “Sign up””? (a) tap “Sign up” (b) open the app
23. 23.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 64 px tall
    Save button: 52 px tall
    Done button: 32 px tall
    Start button: 36 px tall
24. 24.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ top bar ]
    [ filter buttons ]
    [ Add button ]
    [ Save button ] (a) Add button (b) top bar (c) Save button
25. 25.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
26. 26.Which colour pair is easy to read? (a) pale pink on white (b) black on pale grey (c) dark blue on black (d) light grey on white
27. 27.💾 What number does this code show?
    let songs = ["Sunrise", "Rain"];
    songs.push("Ocean");
    songs.push("Stars");
    show(songs.length);
28. 28.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ Save button ]
    [ top bar ]
    [ big picture ]
    [ filter buttons ] (a) filter buttons (b) Save button (c) top bar
29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Video”
    Which screen are you on now? (a) Chat (b) Feed (c) Edit photo (d) Video
30. 30.True or false: strong colour contrast is good button design. (a) False (b) True
31. 31.True or false: the sound on/off setting fits saving on the phone. (a) True (b) False
32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Me tab
    3. open “Badges”
    Which screen are you on now? (a) Quiz (b) Me (c) Lessons (d) Badges
33. 33.Which of these helps everyone use the app? (a) labels on every icon (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
34. 34.🔀 What is a user flow? (a) a charging cable (b) a type of font (c) a colour theme (d) the path through screens
35. 35.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) a closed app (c) delete this (d) a picture goes here
36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Chat tab
    3. tap the Chat tab
    4. open “Badges”
    Which screen are you on now? (a) Feed (b) Chat (c) Friend list (d) Badges
37. 37.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
38. 38.🔘 Our rule: buttons are at least 48 px tall. The Help button is 24 px tall. How many px taller must it be?
39. 39.🖼️ How many parts (boxes) does this wireframe have?
    [ filter buttons ]
    [ big picture ]
    [ menu icon ]
    [ list of items ]
40. 40.✏️ What is a wireframe? (a) a simple screen sketch (b) a type of password (c) a charging cable (d) the finished app

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students