App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 120 · 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.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Pens → Address → Results → Search
   Design B: Home → Address → Menu → Pay → Search → Size (a) Design A (b) Design B
2. 2.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
3. 3.🔘 Our rule: buttons are at least 48 px tall. The Save button is 40 px tall. How many px taller must it be?
4. 4.Which colour pair is easy to read? (a) yellow on white (b) black on pale grey (c) red on green (d) dark blue on black
5. 5.💾 What does this code show? (Positions start at 0.)
   let notes = ["Art", "Science", "Music", "Sports"];
   show(notes[0]); (a) Science (b) Music (c) Sports (d) Art
6. 6.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
7. 7.True or false: the icon shapes is about UI (the look). (a) False (b) True
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 18 px
   Hint: 18 px
   Label: 14 px
   Title: 28 px (a) Title (b) Label (c) Caption (d) Hint
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Menu → Item → Pay → Shop → Cart
   Design B: Home → Results → Address → Confirm
10. 10.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) looks like the real app (d) uses plain grey boxes
11. 11.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 48 px tall
    Back button: 56 px tall
    Next button: 56 px tall
    Cancel button: 36 px tall (a) Next (b) Cancel (c) Start (d) Back
12. 12.Which colour pair is hard to read? (a) yellow on white (b) black on pale grey (c) white on black (d) dark blue on white
13. 13.💾 Which can hold many values in order? (a) a single number (b) a list (c) a switch (d) a button
14. 14.Which of these is true of a menu button? (a) sits at the bottom (b) opens a list of pages (c) goes to the last screen (d) shows 3 to 5 icons
15. 15.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
16. 16.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
    [ filter buttons ]
    [ list of items ]
    [ menu icon ]
    [ tab bar ]
    [ big picture ] (a) big picture (b) list of items (c) filter buttons (d) tab bar
17. 17.Which of these is true of the back button? (a) sits at the bottom (b) opens a list of pages (c) undoes one move (d) switches main sections
18. 18.🔢 In a food-order flow, which comes first: “add it to the cart” or “pick a dish”? (a) add it to the cart (b) pick a dish
19. 19.Which of these makes the app harder to use? (a) strong colour contrast (b) sudden loud sounds (c) big touch targets (d) text that can grow
20. 20.🔘 Our rule: buttons are at least 48 px tall. The Done button is 28 px tall. How many px taller must it be?
21. 21.🔀 What is a user flow? (a) a colour theme (b) a charging cable (c) the path through screens (d) a type of font
22. 22.🧭 Which part of navigation hides extra links? (a) the back button (b) a menu button (c) a tab bar
23. 23.💾 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
24. 24.True or false: space between buttons is good button design. (a) False (b) True
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Title: 26 px
    Body text: 12 px (a) Body text (b) Hint (c) Title
26. 26.True or false: a wireframe has the real colours. (a) True (b) False
27. 27.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
28. 28.🔢 In a sign-up flow, which comes FIRST? (a) tap “Sign up” (b) make a password (c) see the home screen (d) open the app
29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Me tab
    3. tap the Lessons tab
    4. open “Edit photo”
    Which screen are you on now? (a) Friend list (b) Lessons (c) Quiz (d) Edit photo
30. 30.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see if it is right (b) pick an answer (c) see the final score (d) read a question
31. 31.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) in the cloud (b) on the phone
32. 32.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
33. 33.💾 What number does this code show?
    let songs = ["Monsoon", "Stars", "Ocean"];
    songs.push("Rain");
    show(songs.length);
34. 34.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Item → Shop → Pay → Search
    Design B: Home → Confirm → Pay → Address → Results → Search
36. 36.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 68 px tall
    Cancel button: 60 px tall
    Done button: 40 px tall (a) Cancel (b) Done (c) Back
37. 37.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 36 px tall
    Done button: 48 px tall
    Help button: 40 px tall
38. 38.💾 pop() takes off the last item. What does this code show?
    let songs = ["Sunrise", "Kites", "Stars", "Rain"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Stars (b) Kites (c) Sunrise (d) Rain
39. 39.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 32 px tall
    Send button: 52 px tall
    Next button: 32 px tall
    Cancel button: 44 px tall
40. 40.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False

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